2012-2017 Mercedes A Class 4 Door On-board computer/Displays User Manual
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On-board computer/Displays for Your Mercedes A Class 4 Door Third Generation (2012-2017)

237  
Useful information ............................ 238  
Important safety notes ..................... 238  
Displays and operation ..................... 238  
Menus and submenus ...................... 241  
Display messages ............................. 257  
Warning and indicator lamps in the  
instrument cluster ............................ 292  
Displays and operation  
238  
If the operating safety of your vehicle is  
impaired, park the vehicle safely as soon as  
possible. Contact a qualified specialist work-  
shop.  
For an overview, see the instrument panel  
illustration (Y page 30).  
Useful information  
i This Owner's Manual describes all mod-  
els, series and optional equipment for your  
vehicle that were available at the time of  
going to press. National variations are pos-  
sible. Note that your vehicle may not be  
equipped with all of the functions descri-  
bed. This is also the case for systems and  
functions relevant to safety.  
Displays and operation  
Instrument cluster lighting  
i Read the information on qualified special-  
ist workshops: (Y page 24).  
The light sensor in the instrument cluster  
automatically controls the brightness of the  
multifunction display. In daylight, the displays  
in the instrument cluster are not illuminated.  
The lighting in the instrument cluster, in the  
displays and the controls in the vehicle inte-  
rior can be adjusted using the brightness con-  
trol knob.  
Important safety notes  
WARNING  
G
Operating the integrated information systems  
and communicationsequipmentinthevehicle  
while driving will distract you from traffic con-  
ditions. You could then lose control of the  
vehicle. There is a risk of an accident.  
Only operate these devices if road traffic con-  
ditions permit. If you are unsure about the  
surrounding conditions, pull over to a safe  
location and make entries only while the vehi-  
cle is stationary.  
The brightness control knob is located on the  
bottom left of the instrument cluster  
(Y page 30).  
X
Turn the brightness control knob clockwise  
or anti-clockwise.  
If the light switch is set to the Ã, T or  
L position, the brightness is dependent  
upon the brightness of the ambient light.  
You must observe the legal requirements for  
the country in which you are currently driving  
when operating the on-board computer.  
Speedometer with segments  
The speedometer is divided into segments  
only on vehicles with DISTRONIC PLUS.  
WARNING  
G
The segments in the speedometer indicate  
which speed range is available.  
If the instrument cluster has failed or mal-  
functioned, you may not recognise function  
restrictions relevant to safety. The operating  
safety of your vehicle may be impaired. There  
is a risk of an accident.  
Drive on carefully. Have the vehicle checked  
at a qualified specialist workshop immedi-  
ately.  
R
Variable SPEEDTRONIC activated  
(Y page 194):  
The segments light up from the start of the  
scale to the selected limit speed.  
R
DISTRONIC PLUS activated (Y page 196):  
One or two segments in the set speed  
range light up.  
The on-board computer only shows messages  
or warnings from certain systems in the mul-  
tifunction display. You should therefore make  
sure your vehicle is operating safely at all  
times.  
R
DISTRONIC PLUS detects a vehicle in front  
moving more slowly than the stored speed:  
Displays and operation  
239  
The segments between the speed of the  
Under normal operating conditions and with  
vehicle in front and the stored speed light the specified coolant level, the coolant tem-  
up.  
perature may rise to 120 †.  
At high outside temperatures and when driv-  
ing uphill, the coolant temperature may rise  
to the end of the scale.  
Rev counter  
! Do not drive in the overrevving range.  
Doing so will damage the engine.  
Operating the on-board computer  
Overview  
The red band in the rev counter indicates the  
engine's overrevving range.  
The engine is limited within a range to protect  
the engine when the red band is reached.  
Outside temperature display  
You should pay special attention to road con-  
ditions when temperatures are around freez-  
ing point.  
Bear in mind that the outside temperature  
display indicates the measured air tempera-  
ture and not the road surface temperature.  
The outside temperature display is in the mul-  
tifunction display (Y page 241).  
There is a short delay before a change in out-  
side temperature appears in the multifunc-  
tion display.  
:
Multifunction display  
;
Right control panel  
=
Left control panel  
Coolant temperature gauge  
X
To activate the on-board computer: turn  
WARNING  
G
the key to position 1 in the ignition lock.  
If you open the bonnet while the engine is  
overheating or while there is a fire in the  
engine compartment, you could come into  
contact with hot gases or other leaking ser-  
vice products. There is a danger of injury.  
You can control the multifunction display and  
the settings in the on-board computer using  
the buttons on the multifunction steering  
wheel.  
Allow an overheating engine to cool down  
before opening the bonnet. If there is a fire in  
the engine compartment, leave the bonnet  
closed and notify the fire brigade.  
The coolant temperature gauge is in the  
instrument cluster on the right-hand side  
(Y page 30).  
Z
Displays and operation  
240  
Left control panel  
Press briefly:  
%
R
Back  
R
=
;
Calls up the menu and menu bar  
R
Vehicles with Audio 20: switches  
off voice-operated control of the  
navigation (see manufacturer's  
operating instructions)  
Press briefly:  
9
:
R
Scrolls through lists  
R
Vehicles with COMAND Online:  
R
Selects a submenu or function  
switches off LINGUATRONIC  
(see the separate operating  
instructions)  
Hides display messages or calls  
up the last Tripp menu function  
R
In the Audio menu: selects the  
previous or next station, when  
the preset list or station list is  
active, or an audio track or video  
scene  
R
used  
R
In the Tel (Telephone) menu:  
R
Exits the telephone book/redial  
memory  
switches to the phone book and  
selects a name or telephone  
number  
Press and hold:  
%
Press and hold:  
9
:
R
Calls up the standard display in  
the Trip menu  
R
In the Audio menu: selects a pre-  
set list or a station list in the  
desired frequency range or an  
audio track or video scene using  
rapid scrolling  
Right control panel  
R
ó
Vehicles with Audio 20:  
R
In the Tel (Telephone) menu:  
starts rapid scrolling if the phone  
book is open  
Switches on voice-operated con-  
trol for navigation (see manufac-  
turer's operating instructions)  
R
Vehicles with COMAND Online:  
R
a
Confirms the selection or display  
message  
In the Tel (Telephone) menu:  
switches to the telephone book  
and starts dialling the selected  
number  
Switches off LINGUATRONIC  
(see the separate operating  
instructions)  
R
R
R
8
Mute  
W
X
Adjusts the volume  
R
R
~
Rejects or ends a call  
Exits the telephone book/redial  
memory  
R
R
6
Makes or accepts a call  
Switches to the redial memory  
Menus and submenus  
241  
transmission (shifting manually)  
(Y page 177)  
Multifunction display  
R
R
R
R
j Active Parking Assist (Y page 212)  
¯ Cruise control (Y page 191)  
È SPEEDTRONIC (Y page 194)  
_ Adaptive Highbeam Assist  
(Y page 123)  
R
è ECO start/stop function  
(Y page 162)  
R
R
ë HOLD function (Y page 204)  
120 km/h! Maximum permissible speed  
exceeded (only for certain countries)  
Menus and submenus  
Menu overview  
:
Permanent display: outside temperature  
or speed (Y page 251)  
Time  
Text field  
Menu bar  
Drive program (Y page 170)  
Transmission position (Y page 172)  
Using the = or ; button on the steer-  
ing wheel, open the menu bar.  
Operating the on-board computer  
(Y page 239).  
Depending on the equipment fitted in the  
vehicle, you can call up the following menus:  
;
=
?
A
B
R
Trip menu (Y page 242)  
Vehicles with manual transmission: the indi-  
cators in the lower part of the multifunction  
display differ from those shown here.  
For Mercedes-AMG vehicles, the indicators in  
the lower and upper part of the multifunction  
display differ from those shown here.  
R
Navi menu (navigation instructions)  
(Y page 243)  
R
Audio menu (Y page 245)  
R
Tel menu (telephone) (Y page 246)  
R
R
R
R
Assist. menu (assistance) (Y page 247)  
Serv. menu (Y page 250)  
Settings menu (settings) (Y page 250)  
AMG menu (Mercedes-AMG vehicles)  
(Y page 254)  
X
To display menu bar ?: press the =  
or ; button on the steering wheel.  
If you do not press the buttons any longer,  
menu bar ? is faded out after a few sec-  
onds.  
Text field = shows the selected menu or  
submenu as well as display messages.  
The displays for the Audio, Navi and Tel  
menus may differ slightly to those in your  
vehicle.  
The examples given in this Owner's Manual  
apply to vehicles equipped with COMAND  
Online.  
i Set the time using Audio 20 or COMAND  
Online (see the separate operating instruc-  
tions).  
The following messages may appear in  
the multifunction display:  
R
Z Gearshift recommendation for manual  
transmission (Y page 168) or for automatic  
Z
Menus and submenus  
242  
When 9,999 hours or 99,999 kilometres have  
been exceeded, the trip computer is auto-  
matically reset From reseett.  
Trip menu  
Standard display  
ECO display  
X
Press and hold the % button on the  
steering wheel until the Trip menu with  
trip meter : and total distance  
recorder ; appears.  
The ECO display is not available in Mercedes-  
AMG vehicles.  
X
Press the = or ; button on the steer-  
Trip computer "From start" or "From  
reset"  
ing wheel to select the Trip menu.  
Press the 9 or : button to select  
X
ECO DISPLAYY.  
If the ignition remains switched off for longer  
than four hours, the ECO display will be auto-  
matically reset.  
Further information on the ECO display  
(Y page 188).  
:
Distance  
Driving time  
Average speed  
Displaying the range and current fuel  
consumption  
;
=
?
Average fuel consumption  
X
Press the = or ; button on the steer-  
ing wheel to select the Trip menu.  
X
Press the 9 or : button to select  
From starrtt or From reseett.  
The values in the From starrtt submenu are  
calculated from the start of a journey whilst  
the values in the From reseett submenu are  
calculated from the last time the submenu  
was reset (Y page 243).  
In the following cases, the trip computer is  
automatically reset From starrtt:  
Mercedes-AMG vehicles: the menu only dis-  
plays range :.  
X
Press the = or ; button on the steer-  
ing wheel to select the Trip menu.  
X
Press 9 or : to select the display  
with approximate range : and current fuel  
consumption ;.  
Approximate range : that can be covered  
is calculated according to your current driv-  
ing style and the amount of fuel in the tank.  
If there is only a small amount of fuel left in  
R
the ignition has been switched off for more  
than four hours  
R
999 hours have been exceeded.  
R
9,999 kilometres have been exceeded.  
Menus and submenus  
243  
X
X
the fuel tank, a vehicle being refuelled C  
appears instead of approximate range :.  
Press a to confirm.  
Press : to select Yes and press a to  
Recuperation display = shows you if  
energy has been recuperated from the  
kinetic energy in overrun mode and saved  
in the battery. Recuperation display =  
depends on the engine installed and is  
therefore not available in all vehicles.  
confirm.  
You can reset the values of the following func-  
tions:  
R
Trip meter  
"From start" trip computer  
"From reset" trip computer  
R
R
R
Digital speedometer  
ECO display  
If you reset the values in the "ECO display",  
the values in the "From start" trip computer  
are also reset. If you reset the values in the  
"From start" trip computer, the values in the  
"ECO display" are also reset.  
Navigation menu  
X
Press the = or ; button on the steer-  
ing wheel to select the Trip menu.  
Displaying navigation instructions  
X
Press the 9 or : button to select  
In the Navi menu, the multifunction display  
shows navigation instructions.  
Further information on navigation can be  
found in the separate Audio 20 or COMAND  
Online operating instructions.  
digital speedometer ;.  
Gearshift recommendation : Z may also  
be displayed.  
Observe the information on gearshift rec-  
ommendation : for manual transmission  
(Y page 168) or for automatic transmission  
(shifting manually) (Y page 177).  
Mercedes-AMG vehicles: a gearshift rec-  
ommendation is shown in the status bar of  
the multifunction display and not in the dig-  
ital speedometer display.  
X
Switch on Audio 20 or COMAND Online;  
see the separate operating instructions.  
X
Press the = or ; button on the steer-  
ing wheel to select the Navi menu.  
Route guidance not active  
Resetting values  
:
Direction of travel  
;
Current road  
X
Press the = or ; button onthe steer-  
ing wheel to select the Trip menu.  
X
Press the 9 or : button to select the  
function that you wish to reset.  
Z
Menus and submenus  
244  
Route guidance active  
Change of direction announced with a  
lane recommendation  
No change of direction announced  
:
Road to which the change of direction  
:
Distance to the destination  
Distance to the next change of direction  
Current road  
leads  
;
;
Distance to change of direction and visual  
distance display  
=
?
Symbol indicating "follow the road's  
course"  
=
Lanes not recommended  
Recommended lane and new lane during a  
?
change of direction  
Change-of-direction symbol  
Change of direction without lane recom-  
mendation  
A
On multilane roads, new lane recommenda-  
tions can be displayed for the next change of  
direction if the digital map supports this data.  
During the change of direction, new lanes  
may be added.  
Lane not recommended =: you will not be  
able to complete the next change of direction  
if you stay in this lane.  
Recommended lane and new lane during a  
change of direction ?: in this lane you will be  
able to complete the next two changes of  
direction without changing lane.  
:
Road to which the change of direction  
leads  
Distance to change of direction and visual  
distance display  
;
=
Change-of-direction symbol  
When a change of direction is to be made, you  
will see symbol = for the change of direction  
and distance graphic ;. This shortens  
towards the top of the display as you  
Other status indicators of the naviga-  
tion system  
approach the point of the announced change  
of direction. The change of direction starts  
once the distance display reaches zero.  
The navigation system displays additional  
information and the vehicle status.  
Possible displays  
R
New routee... or Calculating route...  
Menus and submenus  
245  
Audio player or audio media operation  
A new route is calculated.  
R
Road not mapped  
The vehicle position is inside the area of the  
digital map but the road is not recognised,  
e.g. new roads, car parks or private land.  
R
R
No route  
No route could be calculated to the selec-  
ted destination.  
O
:
Current track  
Audio files from various audio players or  
media can be played, depending on the equip-  
ment fitted in the vehicle.  
You have reached the destination or an  
intermediate destination.  
X
Switch on Audio 20 or COMAND Online and  
Audio menu  
select audio CD or MP3 mode (see the sep-  
arate operating instructions).  
Press the = or ; button on the steer-  
Selecting a radio station  
X
ing wheel to select the Audio menu.  
X To select the next/previous track:  
briefly press the 9 or : button.  
X To select a track from the track list  
(rapid scrolling): press and hold the 9  
or : button until the desired track  
appears.  
If you press and hold the 9 or :  
button, the rapid scrolling speed is  
increased. Not all audio players or media  
support this function.  
:
Active station list  
Station with preset position  
;
The multifunction display shows station ;  
with station frequency or station name. The  
preset position is only displayed along with  
station ; if this has been stored.  
If track information is stored on the audio  
player or media, the multifunction display will  
show the number and title of the track.  
X
Switch on Audio 20 or COMAND Online and  
select Radio (see the separate operating  
instructions).  
Video DVD operation  
X
Press the = or ; button on the steer-  
ing wheel to select the Audio menu.  
X To select a preset list or station list:  
press and briefly hold the 9 or :  
button until the preset list or station list in  
the desired frequency range is shown.  
X
To select a station: briefly press 9  
or :.  
Only for vehicles with COMAND Online: you  
can use the Audio menu to play video DVDs.  
i DAB radio mode (Digital Audio Broadcast-  
ing) is an optimised digital transmission  
standard designed for the mobile reception  
of radio transmissions.  
Z
Menus and submenus  
246  
X
X
Switch on COMAND Online and select  
video DVD (see the separate operating  
instructions).  
Press the = or ; button on the steer-  
ing wheel to select the Audio menu.  
Telephone menu  
Introduction  
WARNING  
G
Operating the integrated information systems  
and communications equipment in the vehicle  
while driving will distract you from traffic con-  
ditions. You could then lose control of the  
vehicle. There is a risk of an accident.  
Only operate these devices if road traffic con-  
ditions permit. If you are unsure about the  
surrounding conditions, pull over to a safe  
location and make entries only while the vehi-  
cle is stationary.  
X To select the next or previous scene:  
briefly press the 9 or : button.  
X To select a scene from the scene list  
(rapid scrolling): press and hold the 9  
or : button until desired scene :  
appears.  
TV operation  
When telephoning, you must observe the  
legal requirements for the country in which  
you are currently driving.  
X
Switch on the mobile phone (see the man-  
ufacturer's operating instructions).  
X
Switch on Audio 20 or COMAND Online;  
see the separate operating instructions.  
Insert the mobile phone into the bracket  
(Y page 318).  
Only for vehicles with COMAND Online: you  
can use the Audio menu to select a TV sta-  
tion.  
The preset position is only displayed along  
with channel : if this has been stored.  
X
or  
X
®
Establish a Bluetooth connection to Audio  
X
Switch on COMAND Online and select TV  
20 or COMAND Online; see the separate  
operating instructions.  
Press the = or ; button on the steer-  
ing wheel to select the Tel menu.  
(see the separate operating instructions).  
X
Press the = or ; button on the steer-  
X
ing wheel to select the Audio menu.  
X
To select a stored channel: briefly press  
You will see one of the following display mes-  
sages in the multifunction display:  
the 9 or : button.  
X To select a channel from the channel  
list: press and briefly hold the 9  
or : button.  
R
Telephone rreeaaddyy or the name of the net-  
work provider: the mobile phone has found  
a network and is ready to receive.  
i You can store TV channels in COMAND  
Online (see the separate operating instruc-  
tions).  
R
Telephone NNoo sseerrvviiccee: there is no net-  
work available or the mobile phone is  
searching for a network.  
i You can obtain further information about  
suitable mobile phones and connecting  
mobile phones via Bluetooth®:  
R
at any Mercedes-Benz Service Centre  
R
on the Internet at http://  
Menus and submenus  
247  
Accepting a call  
X If there is more than one number for a  
particular name: press the 6 or a  
button to display the numbers.  
X
Press the 9 or : button to select the  
number you want to dial.  
X
Press the 6 or a button to start dial-  
ling.  
or  
If someone calls you when you are in the Tel  
menu, a display message appears in the mul-  
tifunction display.  
X
If you do not want to make the call: press  
the ~ or % button.  
You can accept a call at any time, even if you  
are not in the Tel menu.  
Redialling  
The on-board computer saves the last names  
or numbers dialled in the redial memory.  
X
Press the 6 button on the steering  
wheel to accept an incoming call.  
X
Press the= or ; button on the steer-  
ing wheel to select the Tel menu.  
Press the 6 button to switch to the  
redial memory.  
Press the 9 or : button to select the  
desired name or number.  
Press the 6 or a button to start dial-  
Rejecting or ending a call  
X
You can reject or end a call any time even if  
you are not in the Tel menu.  
X
X
Press the ~ button on the steering  
wheel to reject or end an incoming call.  
X
ling.  
Selecting an entry in the phone book  
or  
X
If you do not want to make the call: press  
the ~ or % button.  
X
Press the = or ; button on the steer-  
ing wheel to select the Tel menu.  
X
Press the 9, : or a button to  
switch to the phone book.  
Authorise access to the phone book on the  
phone.  
Assistance menu  
Introduction  
X
X
Press the 9 or : button to select the  
desired name.  
or  
X
To begin rapid scrolling: press and hold  
the 9 or : button for longer than  
one second.  
Rapid scrolling stops when you release the  
button or reach the end of the list.  
X If only one telephone number is stored  
for a name: press the 6 or a button  
to start dialling.  
Depending on the equipment fitted in the  
vehicle, you have the following options in the  
Assist. menu:  
R
Showing the assistance graphic  
or  
(Y page 248)  
R
Activating/deactivating the Traffic Sign  
Assist message function (Y page 248)  
Z
Menus and submenus  
248  
®
R
R
R
R
R
Traffic Sign Assist  
Activating/deactivating ESP (except  
Mercedes-AMG vehicles) (Y page 248)  
Activating/deactivating COLLISION PRE-  
VENTION ASSIST PLUS (Y page 249)  
Activating/deactivating ATTENTION  
In the Trafffic Sign Assist menu, you can  
switch the Traffic Sign Assist message func-  
tion on or off. When the message function is  
activated, detected traffic signs and informa-  
tion appear in the multifunction display for  
five seconds.  
ASSIST (Y page 249)  
Activating/deactivating Blind Spot Assist  
(Y page 249)  
X
Press the = or ; button on the steer-  
Activating/deactivating Lane Keeping  
ing wheel to select the Assisst. menu.  
Assist (Y page 249)  
X
Press the 9 or : button to select  
Traffic Sign Assist.  
Press a to confirm.  
Showing the assistance graphic  
X
The current selection appears.  
X To activate/deactivate the message  
function: press a again.  
Further information about Traffic Sign Assist  
(Y page 223).  
Deactivating/activating ESP®  
Observe the important safety notes on ESP®  
(Y page 73).  
WARNING  
G
X
Press the = or ; button on the steer-  
If you deactivate ESP®, ESP® no longer sta-  
bilises the vehicle. There is an increased risk  
of skidding and an accident.  
Only deactivate ESP® in the situations descri-  
bed in the following.  
ing wheel to select the Assisst. menu.  
Press 9 or : to select Assistance  
graphic.  
Press a to confirm.  
The assistance graphic shows you the sta-  
tus of and/or information from the follow-  
ing driving systems or driving safety sys-  
tems:  
X
X
It may be best to deactivate ESP® in the fol-  
lowing situations:  
R
when using snow chains  
R
Traffic Sign Assist (Y page 223)  
R
in deep snow  
R
DISTRONIC PLUS (Y page 196)  
R
on sand or gravel  
R
COLLISION PREVENTION ASSIST PLUS  
Deactivating/activating ESP® on Mercedes-  
(Y page 70)  
R
ATTENTION ASSIST (Y page 222)  
AMG vehicles (Y page 75).  
For further information about ESP®, see  
R
Lane Keeping Assist (Y page 228)  
(Y page 73).  
X
Press : to display the ATTEN-  
TION ASSIST assessment.  
X
Start the engine.  
X
Press the = or ; button on the steer-  
ing wheel to select the Assisst. menu.  
X
Press 9 or : to select ESP.  
Menus and submenus  
249  
X
X
X
X
Press a to confirm.  
The current selection appears.  
Press the : or 9 button to set Off,  
Standard or Sensitive.  
Press the a button to save the setting.  
When ATTENTION ASSIST is deactivated,  
the é symbol appears in the multifunc-  
tion display in the assistance graphic dis-  
play.  
To activate/deactivate: press a  
again.  
ESP® is deactivated if the å warning  
lamp in the instrument cluster lights up  
continuously when the engine is running.  
For further information about ATTENTION  
ASSIST, see (Y page 222).  
If the ÷ and å warning lamps light up  
continuously, ESP® is not available due to a  
malfunction.  
Observe the information on warning lamps  
(Y page 297).  
Activating/deactivating Blind Spot  
Assist  
Observe the information on display messages  
(Y page 258).  
X
X
X
X
Press the = or ; buttonon the steer-  
ing wheel to select the Assist. menu.  
Press the 9 or : button to select  
Blind Spot Assist.  
Press a to confirm.  
The current selection appears.  
Activating/deactivating COLLISION  
PREVENTION ASSIST PLUS  
X
Press the = or ; buttonon the steer-  
To activate/deactivate: press a  
ing wheel to select the Assist. menu.  
again.  
X
Press the 9 or : button to select  
Collision Prevvent. Assist.  
Press a to confirm.  
The current selection appears.  
Further information about Blind Spot Assist  
(Y page 226).  
X
Activating/deactivating Lane Keeping  
Assist  
X
To activate/deactivate: press a  
again.  
When COLLISION PREVENTION ASSIST  
PLUS is deactivated, the æ symbol  
appears in the multifunction display in the  
assistance graphic display.  
X
Press the = or ; buttonon the steer-  
ing wheel to select the Assist. menu.  
Press the 9 or : button to select  
Lane Keeping Assist.  
Press a to confirm.  
The current selection appears.  
X
For further information about COLLISION  
PREVENTION ASSIST PLUS, see (Y page 70).  
X
X
Press a again to confirm.  
Press the : or 9 button to set Off,  
Standard or Adaptive.  
Press the a button to save the setting.  
When Lane Keeping Assist is activated, the  
multifunction display shows the lane mark-  
ings as bright lines in the assistance  
graphic.  
Activating/deactivating ATTENTION  
ASSIST  
X
X
Press the = or ; buttonon the steer-  
X
ing wheel to select the Assist. menu.  
X
Press the 9 or : button to select  
Attention AAssistt.  
X
Press a to confirm.  
The current selection appears.  
Press a to confirm.  
For further information about Lane Keeping  
Assist, see (Y page 228).  
X
Z
Menus and submenus  
250  
tain displays appear in kilometres or miles in  
the multifunction display.  
Service menu  
X
Press the = or ; button on the steer-  
ing wheel to select the Settings menu.  
X
Press the : or 9 button to select the  
Instrument cluster submenu.  
X
Press a to confirm.  
X
Press the : or 9 button to select the  
Depending on the equipment fitted in the  
vehicle, you have the following options in the  
Serv. menu:  
Display uunit Speed-/odometer func-  
tion.  
You will see the selected setting: km or  
miles.  
R
Calling up display messages in the mes-  
sage memory (Y page 257)  
X
Press the a button to save the setting.  
R
Restarting the tyre pressure loss warning  
system (Y page 364)  
Calling up the service due date  
(Y page 328)  
The selected unit of measurement for dis-  
tance applies to the:  
R
R
digital speedometer in the Trip menu  
R
total distance recorder and the trip meter  
R
trip computer  
Settings menu  
Introduction  
R
current fuel consumption and approximate  
range  
navigation instructions in the Navi menu  
cruise control  
SPEEDTRONIC  
DISTRONIC PLUS  
R
R
R
R
R
ASSYST PLUS service interval display  
Switching the additional speedometer  
on/off  
Depending on the equipment fitted in the  
vehicle, In the Settings menu you have the  
following options:  
United Kingdom: this function is unavailable.  
If the additional speedometer is switched on,  
the speed is shown in the status bar of the  
multifunction display instead of the outside  
temperature.  
The speed display is inverse to your speed-  
ometer.  
R
Changing the instrument cluster settings  
R
Changing the light settings  
R
Changing the vehicle settings  
R
Changing the heating settings  
R
Changing the convenience settings  
X
Press the = or ; button on the steer-  
ing wheel to select the Settings menu.  
R
Restoring the factory settings  
X
Press the : or 9 button to select the  
Instrument cluster  
Instrument cluster submenu.  
X
Press a to confirm.  
Selecting the distance unit  
The Display unitt Speed-/odometer:  
function allows you to choose whether cer-  
Menus and submenus  
251  
X
X
Press the : or 9 button to select the Further information on daytime driving lights  
Dig. speedo [mph] function.  
You will see the selected setting: on or off.  
(Y page 120).  
Vehicle  
Press the a button to save the setting.  
Setting permanent SPEEDTRONIC  
Selecting permanent display  
You can set permanent SPEEDTRONIC using  
the Limit speed (winnter tyres) function.  
United Kingdom: this function is unavailable.  
The Permanent display: function allows  
you to choose whether the multifunction dis-  
play always shows the outside temperature or  
the speed.  
X
Press the = or ; buttonon the steer-  
ing wheel to select the Settings menu.  
X
Press the : or 9 button to select the  
Vehicle submenu.  
Press a to confirm.  
The speed display is inverse to your speed-  
ometer.  
X
X
Press the = or ; buttonon the steer-  
ing wheel to select the Settings menu.  
X
Press : or 9 to select the Limit  
speed (winter tyres): function.  
You will see the current setting.  
X
Press the : or 9 button to select the  
Instrument cluster submenu.  
X
Press a to confirm.  
X
Press a to confirm.  
X
Press the : or 9 button to adjust  
permanent SPEEDTRONIC in increments of  
ten (1600 km/h to 240 km/h). The Off set-  
ting switches permanent SPEEDTRONIC  
off.  
X
Press the : or 9 button to select the  
Permanent display: function.  
The current setting, outside tempera‐  
ture or Dig. speedo [mph]:, appears.  
X
Press the a button to store the entry.  
X
Press the a button to save the setting.  
For further information on permanent SPEED-  
TRONIC (Y page 196).  
Lights  
Activating/deactivating the automatic  
locking feature  
Switching the daytime driving lights  
on/off  
X
Press the = or ; buttonon the steer-  
ing wheel to select the Settings menu.  
Press the : or 9 button to select the  
The Daytime driving lights function can  
only be switched on with the engine turned  
off.  
X
Vehicle submenu.  
Press a to confirm.  
X
Press the = or ; buttonon the steer-  
ing wheel to select the Settings menu.  
X
X
Press the : or 9 button to select the  
X
Press the : or 9 button to select the  
Automatic doorr locks function.  
If the Automatic dooor locks function is  
switched on, the multifunction display  
shows the doors in orange.  
Lights submenu.  
Press a to confirm.  
Press the : or 9 button to select the  
Daytime driving lights function.  
If the Daytime driving lights function  
has been switched on, the cone of light and  
the W symbol in the multifunction dis-  
play are shown in orange.  
X
X
X
Press the a button to save the setting.  
If you activate the Automatic dooor locks  
function, the vehicle is centrally locked above  
a speed of around 15 km/h.  
X
Press the a button to save the setting.  
For further information on the automatic lock-  
ing feature; see (Y page 91).  
Z
Menus and submenus  
252  
Activating/deactivating the acoustic  
locking confirmation  
There is a risk of fire.  
When the auxiliary heating is switched on,  
make sure that:  
If you switch on the Acousstic Lockk function,  
an acoustic signal sounds when you lock the  
vehicle.  
R
no flammable materials come into contact  
with hot vehicle components  
X
Press the = or ; button on the steer-  
R
the exhaust gas can escape from the  
ing wheel to select the Settinngs menu.  
exhaust pipe unhindered  
X
Press the : or 9 button to select the  
R
the exhaust gas does not come into contact  
Vehiclee submenu.  
with flammable materials.  
X
Press a to confirm.  
X
!
Operating the auxiliary heating/ventila-  
Press the : or 9 button to select the  
Acoustic LLock function.  
If the Acousstic Lockk function is activated,  
the & symbol in the multifunction dis-  
play lights up orange.  
tion draws on the vehicle battery. After you  
have heated or ventilated the vehicle a  
maximum of two times, drive for a longer  
distance.  
X
Press the a button to save the setting.  
Only vehicles with auxiliary heating have this  
function.  
Heating  
In the Heatting submenu, you can select a  
stored departure time or change a departure  
time.  
Auxiliary heating departure time  
DANGER  
G
The auxiliary heating timer function calcu-  
lates the switch-on time according to the out-  
side temperature so that the vehicle is pre-  
heated by the departure time. When the  
departure time is reached, the auxiliary heat-  
ing continues to heat for a further five  
minutes and then switches off. The auxiliary  
heating adopts the set air conditioning or  
THERMOTRONIC temperature setting.  
If the exhaust pipe is blocked or sufficient  
ventilation is not possible, toxic exhaust  
fumes can enter the vehicle, especially car-  
bon monoxide. This is the case, e.g. in  
enclosed spaces, or if the vehicle is stuck in  
snow. There is a risk of fatal injuries.  
You should switch off the auxiliary heating in  
enclosed spaces which do not have an extrac-  
tion system, e.g. a garage. If the vehicle is  
stuck in snow and you must leave the auxiliary  
heating running, keep the exhaust pipe and  
the area around the vehicle clear of snow. To  
guarantee a sufficient supply of fresh air, open  
a window on the side of the vehicle away from  
the wind.  
You can switch off the auxiliary heating by  
using the remote control or the auxiliary heat-  
ing button on the centre console.  
i Switch the auxiliary heating on regularly  
once a month for about ten minutes.  
Further information on auxiliary heating  
(Y page 148).  
WARNING  
G
When the auxiliary heating is switched on,  
parts of the vehicle can become very hot.  
Selecting the departure time or deactivat-  
ing a selected departure time  
X
Press the = or ; button on the steer-  
Flammable materials such as leaves, grass or  
twigs may ignite if they come into contact  
with:  
ing wheel to select the Settinngs menu.  
X
Press the : or 9 button to select the  
Heatingg submenu.  
R
hot parts of the exhaust system  
the exhaust gas itself  
X
Press a to confirm.  
R
The current setting appears.  
Menus and submenus  
253  
X
X
Switching the fold mirrors in when lock-  
ing function on/off  
Press a again.  
Press the : or 9 button to select  
one of the three departure times or Timer  
off (no timer active).  
This function is only available when the vehi-  
cle is equipped with the electrical fold-in func-  
tion.  
X
Press a to confirm.  
If a departure time is selected, the yellow  
indicator lamp lights up on the auxiliary  
heating button.  
When you activate the Auto. fold-iin mir‐  
rors function, the exterior mirrors are folded  
in when the vehicle is locked. When you  
unlock the vehicle and then open the driver's  
or front-passenger door, the exterior mirrors  
Changing the departure time  
X
Press the = or ; buttonon the steer- fold out again.  
ing wheel to select the Settings menu.  
If you have switched on the Auto. fold-in  
Press the : or 9 button to select the mirrors function and you fold in the exterior  
X
X
X
X
X
X
X
Heating submenu.  
Press a to confirm.  
The current setting appears.  
Press the : or 9 button to select  
Change A, Change B or Change C.  
Press a to confirm.  
You can now change the departure time.  
Press the = or ; button to select the  
display to be changed: hours, minutes.  
Press the : or 9 button to set the  
selected display.  
Press the a button to store the entry.  
The yellow indicator lamp on the auxiliary  
heating button lights up.  
mirrors using the button on the door  
(Y page 114), they will not fold out automat-  
ically. The exterior mirrors can then only be  
folded out using the button on the door.  
X
Press the = or ; buttonon the steer-  
ing wheel to select the Settings menu.  
X
Press the : or 9 button to select the  
Conveniencce submenu.  
X
Press a to confirm.  
X
Press the : or 9 button to select the  
Auto. fold-in mirrors function.  
If the Auto. fold-in miirrorss function is  
switched on, the multifunction display  
shows the exterior mirror in orange.  
X
Press the a button to save the setting.  
Comfort  
Resetting to factory settings  
Switching belt adjustment on/off  
X
Press the = or ; buttonon the steer-  
X
Press the = or ; buttonon the steer-  
ing wheel to select the Settings menu.  
ing wheel to select the Settings menu.  
X
Press the : or 9 button to select the  
X
Press the : or 9 button to select the  
Factory setting submenu.  
Conveniencce submenu.  
X
Press a to confirm.  
X
Press a to confirm.  
The Reset all settings? function  
appears.  
X
Press the : or 9 button to select the  
Belt adjustment function.  
X
Press the : or 9 button to select No  
When the Belt adjustment function is  
activated, the seat belt is displayed in  
orange in the multifunction display.  
or Yes.  
X
Press the a button to confirm the selec-  
tion.  
X
Press the a button to save the setting.  
If you have selected Yes, the multifunction  
display shows a confirmation message.  
For further information on belt adjustment,  
see (Y page 45).  
Z
Menus and submenus  
254  
SETUP  
For safety reasons, not all functions are reset:  
the Limit speed (winnter tyrrees) function  
in permanent SPEEDTRONIC can only be set  
in the Vehiclle submenu.  
If you want to reset the Daytime driving  
lights function in the Lights submenu, you  
must turn the key to position 1 in the ignition  
lock.  
:
Drive system Comfort/Sport/Sport +  
;
=
?
Suspension Comfort/Sport/Sport +  
Transmission D/M  
ESP® On/Off or SPORT handling mode  
AMG menu (Mercedes-AMG vehicles)  
WARMUP  
Sport  
SETUP displays the following information and  
functions:  
R
the digital speedometer  
R
the gear indicator  
R
the drive system setting  
R
the suspension mode  
:
Digital speedometer  
R
the transmission position  
;
Gear indicator  
Upshift indicator  
®
R
=
the ESP (Electronic Stability Program) sta-  
tus  
?
Engine oil temperature  
X
A
B
Press the = or ; button on the steer-  
ing wheel to select the AMG menu.  
Press 9 repeatedly until SETUP  
Coolant temperature  
Transmission oil temperature  
X
X
Pressthe = or ; button on the steer-  
ing wheel to select the AMG menu.  
Upshift indicator: upshift indicator UP =  
indicates that the engine has reached the  
overrevving range when in the manual drive  
program.  
appears.  
RACETIMER  
Displaying and starting the RACETIMER  
Engine and transmission oil tempera-  
ture: when the engine and transmission  
are at normal operating temperature, oil  
temperature ? and B are displayed in  
white in the multifunction display.  
If the multifunction display shows oil tem-  
perature ? or B in blue, the engine or the  
transmission are not yet at normal operat-  
ing temperature. Avoid using the full output  
of the engine during this time.  
:
Lap  
RACETIMER  
;
The RACETIMER is only intended for use on a  
closed race circuit. Do not use the function on  
public roads.  
Menus and submenus  
255  
Stopping the RACETIMER  
You can start the RACETIMER when the  
engine is running or if the key is in position 2  
in the ignition lock.  
X
Pressthe = or ; buttononthesteer-  
ing wheel to select the AMG menu.  
X
Press the 9 button repeatedly until the  
RACETIMER appears.  
X
To start: press the a button to start the  
X
X
Press the % button on the steering  
wheel.  
Confirm Yes with a.  
RACETIMER.  
Displaying the intermediate time  
The RACETIMER interrupts timing if you stop  
the vehicle and turn the key to position 1 in  
theignitionlock. Ifyou turn thekeytoposition  
3 and then press a to confirm Start, tim-  
ing is continued.  
Resetting the current lap  
X
Stop the RACETIMER.  
Press the = or ; button to select  
X
Press the = or ; button to select  
Interm. Time.  
X
Reset Lap.  
Press a to reset the lap time to "0".  
X
Press a to confirm.  
The intermediate time is shown for five sec-  
onds.  
X
Deleting all laps  
Starting a new lap  
If you switch off the engine, the RACETIMER is  
reset to "0" after 30 seconds. All laps are  
deleted.  
You cannot delete individual stored laps. If  
you have stopped 16 laps, the current lap  
does not have to be reset.  
:
RACETIMER  
Fastest lap time (best lap)  
Lap  
;
=
X
Press a to confirm New Lap.  
i A maximum of 16 laps may be stored. The  
16th lap can only be completed with Fin‐  
ish Lap.  
X
Reset the current lap.  
Press a to confirm Reset.  
Reset Race Timer? appears in the multi-  
X
function display.  
X
Press the : button to select Yes and  
press the a button to confirm.  
All laps are deleted.  
Z
Menus and submenus  
256  
Overall evaluation  
This function is only available if you have  
stored at least two laps and have stopped the  
RACETIMER.  
X
Pressthe = or ; buttonon the steer-  
ing wheel to select the AMG menu.  
X
Press the 9 button repeatedly until a lap  
evaluation appears.  
Each lap is shown in a separate submenu.  
The fastest lap is indicated by flashing sym-  
bol :.  
:
RACETIMER overall evaluation  
Total time driven  
;
=
Average speed  
X
Press the 9 or : button to select a  
different lap evaluation.  
?
Distance covered  
A
Maximum speed  
This function is shown if you have stored at  
least one lap and stopped the RACETIMER.  
X
Press = or ; on the steering wheel  
to select the AMG menu.  
X
Press the 9 button repeatedly until the  
overall evaluation appears.  
Lap evaluation  
:
Lap  
;
Lap time  
=
Average lap speed  
?
Lap length  
A
Top speed during lap  
Display messages  
257  
Display messages  
Introduction  
General notes  
Display messages appear in the multifunction display.  
Display messages with graphic symbols are simplified in the Owner's Manual and may differ  
from the symbols in the multifunction display.  
Please respond in accordance with the display messages and follow the additional notes in this  
Owner's Manual.  
Certain display messages are accompanied by an audible warning tone or a continuous tone.  
When the ignition is switched off, all display messages are deleted apart from some high-  
priority display messages. Once the causes of the high-priority display messages have been  
rectified, these display messages are deleted as well.  
When you stop and park the vehicle, please observe the notes on:  
R
HOLD function (Y page 204)  
R
Parking (Y page 184)  
Hiding display messages  
X
Press the a or % button on the steering wheel.  
The multifunction display hides the display message.  
The multifunction display shows high-priority display messages in red. Some high-priority dis-  
play messages cannot be hidden.  
The multifunction display shows these messages continuously until the causes for the mes-  
sages have been remedied.  
Message memory  
The on-board computer saves certain display messages in the message memory. You can call  
up the display messages:  
X
Press the = or ; button on the steering wheel to select the Service menu.  
If there are display messages, the multifunction display shows 2 messages, for example.  
X
Press the 9 or : button to select the entry, e.g. 2 messages.  
X
Press a to confirm.  
X
Press the 9 or : button to scroll through the display messages.  
Z
Display messages  
258  
Safety systems  
Display messages  
Possible causes/consequences and M Solutions  
ABS (Anti-lock Braking System), BAS (Brake Assist System), ESP®  
(Electronic Stability Program), ESP® trailer stabilisation, the HOLD  
function, hill start assist and PRE-SAFE® are temporarily unavail-  
able.  
The adaptive brake lights and COLLISION PREVENTION ASSIST  
PLUS may also have failed.  
!÷  
currently unavail‐  
able See Owner's  
Manual  
In addition, the !, ÷ and å warning lamps may light up  
in the instrument cluster.  
ATTENTION ASSIST is deactivated.  
Possible causes:  
R
Self-diagnosis is not yet complete  
R
The on-board voltage may be insufficient.  
WARNING  
G
The brake system continues to function normally, but without the  
functions listed above. The wheels could therefore lock if you  
brake hard, for example.  
The steerability and braking characteristics may be severely affec-  
ted. The braking distance may increase in an emergency braking  
situation.  
If ESP® is not operational, ESP® is unable to stabilise the vehicle.  
There is an increased danger of skidding and risk of an accident.  
X
Carefully drive on a suitable stretch of road, making slight steer-  
ing movements, at a speed above 20 km/h.  
If the display message disappears, the functions mentioned  
above are available again.  
If the multifunction display still shows the display message:  
X
Drive on carefully.  
X
Consult a qualified specialist workshop immediately.  
ABS, BAS, ESP®, ESP® trailer stabilisation, the HOLD function, hill  
start assist and PRE-SAFE® are not available due to a malfunction.  
The adaptive brake lights and COLLISION PREVENTION ASSIST  
PLUS may also have failed.  
!÷  
inoperative See  
Owner's Manual  
The !, ÷, å and J warning lamps may also light up  
in the instrument cluster.  
ATTENTION ASSIST is deactivated.  
WARNING  
G
Display messages  
259  
Display messages  
Possible causes/consequences and M Solutions  
The brake system continues to function normally, but without the  
functions listed above. The wheels could therefore lock if you  
brake hard, for example.  
The steerability and braking characteristics may be severely affec-  
ted. The braking distance may increase in an emergency braking  
situation.  
If ESP® is not operational, ESP® is unable to stabilise the vehicle.  
There is an increased danger of skidding and risk of an accident.  
X
Drive on carefully.  
X
Consult a qualified specialist workshop immediately.  
ESP®, ESP® trailer stabilisation, BAS, the HOLD function, hill start  
assist and PRE-SAFE® are temporarily unavailable.  
The adaptive brake lights and COLLISION PREVENTION ASSIST  
PLUS may also have failed.  
÷
currently uunavvaaiill‐‐  
able See OOwner's  
Manual  
In addition, the ÷ and å warning lamps may light up in the  
instrument cluster.  
ATTENTION ASSIST is deactivated.  
The self-diagnosis function, for example, may not be complete.  
WARNING  
G
The brake system continues to function normally, but without the  
functions listed above.  
The braking distance may thus increase in an emergency braking  
situation.  
If ESP® is not operational, ESP® is unable to stabilise the vehicle.  
There is an increased danger of skidding and risk of an accident.  
X
Carefully drive on a suitable stretch of road, making slight steer-  
ing movements at a speed above 20 km/h.  
If the display message disappears, the functions mentioned  
above are available again.  
If the multifunction display still shows the display message:  
X
Drive on carefully.  
X
Consult a qualified specialist workshop immediately.  
Z
Display messages  
260  
Display messages  
Possible causes/consequences and M Solutions  
ESP®, ESP® trailer stabilisation, BAS, the HOLD function, hill start  
assist and PRE-SAFE® are not available due to a malfunction.  
The adaptive brake lights and COLLISION PREVENTION ASSIST  
PLUS may also have failed.  
÷
inoperattivvee SSeeee  
Owner's MManual  
In addition, the ÷ and å warning lamps may light up in the  
instrument cluster.  
ATTENTION ASSIST is deactivated.  
WARNING  
G
The brake system continues to function normally, but without the  
functions listed above.  
The braking distance may thus increase in an emergency braking  
situation.  
If ESP® is not operational, ESP® is unable to stabilise the vehicle.  
There is an increased danger of skidding and risk of an accident.  
X
Drive on carefully.  
X
Consult a qualified specialist workshop immediately.  
EBD (electronic brake force distribution), ABS, BAS, ESP®, ESP®  
trailer stabilisation, the HOLD function, hill start assist and PRE-  
SAFE® are not available due to a malfunction.  
T!  
÷
The adaptive brake lights and COLLISION PREVENTION ASSIST  
PLUS may also have failed.  
inoperattivvee SSeeee  
Owner's MManual  
A warning tone sounds.  
In addition, the ÷, å and ! warning lamps may light up  
in the instrument cluster.  
WARNING  
G
The brake system continues to function normally, but without the  
functions listed above. The front and rear wheels could therefore  
lock, for example, if you brake hard.  
The steerability and braking characteristics may be severely affec-  
ted. The braking distance may increase in an emergency braking  
situation.  
If ESP® is not operational, ESP® is unable to stabilise the vehicle.  
There is an increased danger of skidding and risk of an accident.  
X
Drive on carefully.  
X
Consult a qualified specialist workshop immediately.  
Display messages  
261  
Display messages  
Possible causes/consequences and M Solutions  
The red ! indicator lamp lights up.  
You attempted to release the electric parking brake while the igni-  
tion was switched off.  
!
Turn on the igni‐  
tion to release  
the parkiing brake  
X
Key: turn the key to position 1 in the ignition lock.  
X
KEYLESS-GO: switch on the ignition.  
The red ! indicator lamp flashes and a warning tone sounds. A  
condition for automatic release of the electric parking brake is not  
fulfilled (Y page 185).  
!
Release pparkingg  
brake  
You are driving with the electric parking brake applied.  
X
Release the electric parking brake manually.  
The red ! indicator lamp flashes and a warning tone sounds.  
You are making an emergency stop using the electric parking  
brake (Y page 185).  
The yellow ! warning lamp lights up.  
The electric parking brake is malfunctioning.  
To apply:  
!
Parking brrake See  
Owner'ss Manual  
X
Switch the ignition off.  
X
Press the electric parking brake lever for at least ten seconds.  
X
Vehicles with manual transmission: engage first gear.  
X
Vehicles with automatic transmission: shift the transmission  
to position P.  
X
Consult a qualified specialist workshop.  
Z
Display messages  
262  
Display messages  
Possible causes/consequences and M Solutions  
The yellow ! warning lamp and the red ! indicator lamp are  
lit.  
The electric parking brake is malfunctioning.  
To release:  
X
Switch off the ignition and turn it back on.  
X
Release the electric parking brake manually.  
or  
X Vehicles with manual transmission (automatic emergency  
release): insert the seat belt in the belt buckle and accelerate  
slightly more when pulling away.  
X
Vehicles with automatic transmission: release the electric  
parking brake automatically (Y page 185).  
If the electric parking brake still cannot be released:  
X
Do not drive on.  
X
Consult a qualified specialist workshop.  
The red ! indicator lamp flashes and the yellow ! warning  
lamp is lit.  
The electric parking brake is malfunctioning.  
To release:  
X
Switch off the ignition and turn it back on.  
X
Release the electric parking brake manually.  
To apply:  
X
Switch off the ignition and turn it back on.  
X
Apply the electric parking brake manually.  
If the red ! indicator lamp continues to flash:  
X
Do not drive on.  
X
Safeguard the vehicle against rolling away (Y page 369).  
X
Vehicles with manual transmission: engage first gear.  
X
Vehicles with automatic transmission: shift the transmission  
to position P.  
X
Turn the front wheels towards the kerb.  
X
Consult a qualified specialist workshop.  
Display messages  
263  
Display messages  
Possible causes/consequences and M Solutions  
The yellow ! warning lamp lights up. The red ! indicator  
lamp flashes for about ten seconds after the electric parking brake  
has been applied or released. It then goes out or remains lit.  
The electric parking brake is malfunctioning.  
X
Switch off the ignition and turn it back on.  
X
Apply the electric parking brake.  
If it is not possible to apply the electric parking brake:  
X
Vehicles with manual transmission: engage first gear.  
X
Vehicles with automatic transmission: shift the transmission  
to position P.  
X
Consult a qualified specialist workshop.  
If it is not possible to release the electric parking brake:  
X Vehicles with manual transmission (automatic emergency  
release): insert the seat belt in the belt buckle and accelerate  
slightly more when pulling away.  
X
Vehicles with automatic transmission: release the electric  
parking brake automatically (Y page 185).  
If the electric parking brake still cannot be released:  
X
Consult a qualified specialist workshop.  
The yellow ! warning lamp lights up. If you manually apply or  
release the electric parking brake, the red ! indicator lamp  
flashes.  
The electric parking brake is malfunctioning. It is not possible to  
apply the electric parking brake manually.  
X
Vehicles with manual transmission: switch off the ignition.  
The electric parking brake is applied automatically.  
or  
X
Insert the seat belt in the belt buckle and accelerate slightly  
more when pulling away (automatic emergency release).  
X
Vehicles with automatic transmission: shift the transmission  
to position P, as the electric parking brake is not applied auto-  
matically.  
X
Consult a qualified specialist workshop.  
Ifyoudonotwishthe electricparking brake tobeapplied, leave the  
ignition switched on, e.g. when washing the vehicle in an auto-  
matic car wash or when having the vehicle towed.  
Z
Display messages  
264  
Display messages  
Possible causes/consequences and M Solutions  
The yellow ! warning lamp lights up. The red ! indicator  
lamp flashes for about ten seconds after the electric parking brake  
has been applied or released. It then goes out or remains lit.  
The electric parking brake is malfunctioning, e.g. because of over-  
voltage or undervoltage.  
!
Parking brake inop‐  
erative  
X
Rectify the cause of the overvoltage or undervoltage, e.g. by  
charging the battery or restarting the engine.  
X
Apply or release the electric parking brake.  
If the electric parking brake still cannot be applied or released:  
X
Switch off the ignition and turn it back on.  
X
Apply or release the electric parking brake.  
If the electric parking brake still cannot be released:  
X
Consult a qualified specialist workshop.  
If it is still not possible to apply the electric parking brake:  
X
Consult a qualified specialist workshop.  
The red ! indicator lamp flashes and the yellow ! warning  
lamp is lit.  
It is not possible to apply the electric parking brake manually.  
X
Vehicles with manual transmission: engage first gear.  
X
Vehicles with automatic transmission: shift the transmission  
to position P.  
X
Consult a qualified specialist workshop.  
Vehicles with manual transmission: a malfunction has occurred  
while the HOLD function was activated.  
A tone may also sound at regular intervals. If you attempt to lock  
the vehicle, the tone becomes louder.  
J
Brake immeediaatteellyy  
You cannot start the engine.  
X
Paying attention to the traffic situation, immediately depress the  
brake pedal firmly and hold until the display message disap-  
pears.  
X
Safeguard the vehicle against rolling away (Y page 184).  
You can restart the engine.  
Display messages  
265  
Display messages  
Possible causes/consequences and M Solutions  
There is insufficient brake fluid in the brake fluid reservoir.  
In addition, the red J warning lamp lights up in the instrument  
cluster and a warning tone sounds.  
J
Check brakke fluiidd  
level  
WARNING  
G
Braking efficiency may be impaired.  
There is a risk of an accident.  
X
Pull over and stop the vehicle safely as soon as possible, paying  
attention to road and traffic conditions. Do not continue driving  
under any circumstances.  
X
Safeguard the vehicle against rolling away (Y page 184).  
X
Consult a qualified specialist workshop.  
X
Do not top up the brake fluid. This does not correct the fault.  
The brake pads/linings have reached their wear limit.  
#
Check braake pad  
wear  
X
Consult a qualified specialist workshop.  
One or more main features of the Mercedes-Benz Contact system  
are malfunctioning.  
G
Inoperaativvee  
X
Consult a qualified specialist workshop.  
Collisionn Prevveenn‐‐  
tion Assiist Plus  
curreentlyy unavvaaiill‐‐  
able See OOwner's  
Manual  
COLLISION PREVENTION ASSIST PLUS is temporarily inoperative.  
Possible causes:  
R
the radar sensor system is temporarily inoperative, e.g. due to  
electromagnetic radiation emitted by nearby TV or radio sta-  
tions or other sources of electromagnetic radiation  
R
the system is outside the operating temperature range  
R
the on-board voltage is too low.  
Once the causes listed above no longer apply, the display message  
goes out.  
COLLISION PREVENTION ASSIST PLUS is operational again.  
If the display message does not disappear:  
X
Pull over and stop the vehicle safely as soon as possible, paying  
attention to road and traffic conditions.  
X
Safeguard the vehicle against rolling away (Y page 184).  
X
Restart the engine.  
Collisionn Prevveenn‐‐  
tion Assiist Plus  
inoperrativvee  
COLLISION PREVENTION ASSIST PLUS is temporarily inoperative  
due to a malfunction. Adaptive Brake Assist may also have failed.  
X
Consult a qualified specialist workshop immediately.  
Z
Display messages  
266  
Display messages  
Possible causes/consequences and M Solutions  
Important functions of PRE-SAFE® have failed. All other occupant  
safety systems, e.g. airbags, remain available.  
PRE-SAFE iinoppeerraa‐‐  
tive Seee Owner's  
Manual  
X
Consult a qualified specialist workshop immediately.  
Radar seensorss  
dirty See OOwner'ss  
Manual  
At least one of the following driving systems or driving safety sys-  
tems is temporarily restricted or inoperative:  
R
COLLISION PREVENTION ASSIST PLUS  
R
DISTRONIC PLUS  
Possible causes:  
R
the sensors in the radiator trim and/or in the bumpers are dirty  
R
the function of the driving system and/or driving safety system  
is impaired due to heavy rain or snow  
A warning tone also sounds.  
Once the causes listed above no longer apply, the display message  
goes out. All driving systems and driving safety systems are opera-  
tional again.  
If the display message does not disappear:  
X
Pull over and stop the vehicle safely as soon as possible, paying  
attention to road and traffic conditions.  
X
Safeguard the vehicle against rolling away (Y page 184).  
X
Switch off the engine.  
X
Clean the sensors (Y page 332) in the following locations:  
R
in the radiator trim  
R
in the front bumper  
R
in the rear bumper, particularly in the middle of the rear  
bumper  
X
Restart the engine.  
The display message disappears.  
If this symbol appears in the multifunction display, a seat belt  
tongue has been inserted into a rear seat belt buckle.  
ü
Further information on the status indicator for the rear seat belts  
(Y page 46).  
Display messages  
267  
Display messages  
Possible causes/consequences and M Solutions  
If this symbol appears in the multifunction display, a seat belt  
tongue has not been inserted in a rear seat belt buckle.  
ý
WARNING  
G
A seat belt which is not worn correctly, or which has not been  
engaged in the seat belt buckle correctly, cannot provide the  
intended level of protection.  
This poses an increased risk of injury.  
X
If necessary, ask the occupants in the rear to fasten their seat  
belts (Y page 44).  
Further information on the status indicator for the rear seat belts  
(Y page 46).  
The restraint system is faulty. The 6 warning lamp also lights  
up in the instrument cluster.  
6
Restraint ssys. mal‐  
functionn Conssuulltt  
workshop  
WARNING  
G
The airbags or belt tensioners may either be triggered uninten-  
tionally or, in the event of an accident, may not be triggered.  
This poses an increased risk of injury.  
X
Consult a qualified specialist workshop immediately.  
For further information about the restraint system, see  
(Y page 40).  
The restraint system has malfunctioned at the front on the left or  
right. The 6 warning lamp also lights up in the instrument clus-  
ter.  
6
Front left mmalfunc‐  
tion Consuult work‐  
shop or Front  
WARNING  
G
right mallfunccttiioonn  
Consult wworkshoopp  
The airbags or belt tensioners may either be triggered uninten-  
tionally or, in the event of an accident, may not be triggered.  
This poses an increased risk of injury.  
X
Consult a qualified specialist workshop immediately.  
The rear left-hand or right-hand restraint system has malfunc-  
tioned. The 6 warning lamp also lights up in the instrument  
cluster.  
6
Rear left malfunc‐  
tion Consullt work‐  
shop or Rearr right  
malfunctiioonn CCoonn‐‐  
sult workshop  
WARNING  
G
The airbags or belt tensioners may either be triggered uninten-  
tionally or, in the event of an accident, may not be triggered.  
This poses an increased risk of injury.  
X
Consult a qualified specialist workshop immediately.  
Z
Display messages  
268  
Display messages  
Possible causes/consequences and M Solutions  
The rear centre restraint system has malfunctioned. The 6  
warning lamp also lights up in the instrument cluster.  
6
Rear centrre mal‐  
function CConssuulltt  
workshop  
WARNING  
G
The airbags or belt tensioners may either be triggered uninten-  
tionally or, in the event of an accident, may not be triggered.  
This poses an increased risk of injury.  
X
Consult a qualified specialist workshop immediately.  
The left or right windowbag is malfunctioning. The 6 warning  
lamp also lights up in the instrument cluster.  
6
Left windoowbag mal‐  
functionn Conssuulltt  
workshoop or Right  
windoowbagg malffuunncc‐‐  
tion Consullt work‐  
shop  
WARNING  
G
The left or right windowbag may either be triggered unintentionally  
or, in the event of an accident, may not be triggered.  
This poses an increased risk of injury.  
X
Consult a qualified specialist workshop immediately.  
Display messages  
269  
Display messages  
Possible causes/consequences and M Solutions  
Front passsenggeerr  
airbag diisableedd  
See Ownerr's Maanual  
The front-passenger front airbag is disabled during the journey  
although:  
R
an adult  
or  
R
a person of the corresponding stature is on the front-passenger  
seat  
If additional forces are applied to the seat, the weight the system  
detects may be too low.  
WARNING  
G
The front-passenger front airbag does not deploy during an acci-  
dent.  
This poses an increased risk of injury.  
X
Pull over and stop the vehicle safely as soon as possible, paying  
attention to road and traffic conditions.  
X
Safeguard the vehicle against rolling away (Y page 184).  
X
Switch the ignition off.  
X
Have the occupant on the front-passenger seat step out of the  
vehicle.  
X
Make sure that the seat is unoccupied, close the front-  
passenger door and switch on the ignition.  
X
Observe the PASSENGER AIR BAG indicator lamps in the centre  
console and the multifunction display and check the following:  
Seat unoccupied and ignition switched on:  
R
a self-diagnosis takes place. The PASSENGER AIR BAG OFF  
and PASSENGER AIR BAG ON indicator lamps light up simul-  
taneously for approximately six seconds  
R
the PASSENGER AIR BAG OFF indicator lamp must light up  
and remain on after the self-diagnosis. If the indicator lamp is  
on, the automatic front-passenger front airbag deactivation  
system has disabled the front-passenger front airbag  
(Y page 50)  
R
the Frontt-passseennggeerr aaiirrbbaagg eennaabblleedd SSeeee OOwwnneerr''ss  
Manuall or Front--passseennggeerr aairbagg disaabbled See Own‐  
er's Mannual display messages must not be shown in the  
multifunction display  
X
Wait for a period of at least 60 seconds until the necessary sys-  
tem checks have been completed.  
X
Make sure that the display messages do not appear in the mul-  
tifunction display.  
If these conditions are met, the front-passenger seat can be occu-  
pied again. Whether the PASSENGER AIR BAG OFF or ON indicator  
Z
Display messages  
270  
Display messages  
Possible causes/consequences and M Solutions  
lamp remains lit or goes out depends on how the automatic front-  
passenger front airbag deactivation system classifies the occu-  
pant.  
If the conditions are not met, the system is not operating correctly.  
X
Consult a qualified specialist workshop immediately.  
Further information on the automatic front-passenger front airbag  
deactivation feature (Y page 49).  
Front-passsseennggeerr  
The front-passenger front airbag is enabled during the journey  
airbag enabled See although:  
Owner's MManual  
R
a child, a small adult or an object weighing less than the system  
weight threshold is located on the front-passenger seat  
or  
R
the front-passenger seat is not occupied  
The system may detect objects or forces that are adding to the  
weight applied to the seat.  
WARNING  
G
The airbag may deploy unintentionally.  
This poses an increased risk of injury.  
X
Pull over and stop the vehicle safely as soon as possible, paying  
attention to road and traffic conditions.  
X
Safeguard the vehicle against rolling away (Y page 184).  
X
Switch the ignition off.  
X
Open the front-passenger door.  
X
Remove the child and the child restraint system from the front-  
passenger seat.  
X
Make sure there are no objects applying additional force to the  
seat.  
The system may otherwise detect the additional force and inter-  
pret the seat occupant's weight as greater than it actually is.  
X
Make sure that the seat is unoccupied, close the front-  
passenger door and switch on the ignition.  
X
Observe the PASSENGER AIR BAG indicator lamps in the centre  
console and the multifunction display and check the following:  
Seat unoccupied and ignition switched on:  
R
a self-diagnosis takes place. The PASSENGER AIR BAG OFF  
and PASSENGER AIR BAG ON indicator lamps light up simul-  
taneously for approximately six seconds  
R
the PASSENGER AIR BAG OFF indicator lamp must light up  
and remain on after the self-diagnosis. If the indicator lamp is  
on, the automatic front-passenger front airbag deactivation  
Display messages  
271  
Display messages  
Possible causes/consequences and M Solutions  
system has disabled the front-passenger front airbag  
(Y page 50)  
R
the Frontt-passseennggeerr aaiirrbbaagg eennaabblleedd SSeeee OOwwnneerr''ss  
Manual or Frontt-passsseennggeerr airbaag dissaabled See Own‐  
er's Mannual display messages must not be shown in the  
multifunction display  
X
X
Wait for a period of at least 60 seconds until the necessary sys-  
tem checks have been completed.  
Make sure that the display messages do not appear in the mul-  
tifunction display.  
If these conditions are met, the front-passenger seat can be occu-  
pied again. Whether the PASSENGER AIR BAG OFF or ON indicator  
lamp remains lit or goes out depends on how the automatic front-  
passenger front airbag deactivation system classifies the occu-  
pant.  
If the conditions are not met, the system is not operating correctly.  
X
Consult a qualified specialist workshop immediately.  
Further information on the automatic front-passenger front airbag  
deactivation feature (Y page 49).  
Lights  
i Vehicles with LED light bulbs in the light clusters:  
The display message for the corresponding lamp only appears when all the LEDs in the lamp  
have failed.  
Display messages  
Possible causes/consequences and M Solutions  
The left or right-hand dipped-beam headlamp is faulty.  
b
Left dippeed beam  
or Right ddipped  
beam  
X
Check whether you are permitted to replace the bulb yourself  
(Y page 125).  
or  
X
Consult a qualified specialist workshop.  
The left or right-hand trailer tail lamp is faulty.  
b
Trailer leeft tail  
lamporTrailer  
X
Consult the manufacturer's operating instructions.  
right taiil lamp  
Z
Display messages  
272  
Display messages  
Possible causes/consequences and M Solutions  
The left or right-hand trailer turn signal lamp is faulty.  
b
Trailer leeft turn  
signalorTrailerr  
X
Consult the manufacturer's operating instructions.  
right turnn signal  
The trailer brake lamp is faulty.  
b
Trailer brrake lampp  
X
Consult the manufacturer's operating instructions.  
The rear left-hand or rear right-hand turn signal is faulty.  
b
Rear left indica‐  
tor or Rear right  
indicator  
X
Check whether you are permitted to replace the bulb yourself  
(Y page 125).  
or  
X
Consult a qualified specialist workshop.  
The front left-hand or front right-hand turn signal is faulty.  
b
Front leftt indica‐‐  
tor or Frontt right  
indiccator  
X
Check whether you are permitted to replace the bulb yourself  
(Y page 125).  
or  
X
Consult a qualified specialist workshop.  
The turn signal in the left-hand or right-hand exterior mirror is  
faulty.  
b
Left mirrorr indica‐  
tor or Righht mir‐  
ror inddicator  
X
Consult a qualified specialist workshop.  
The third brake lamp is faulty.  
b
Third braake lampp  
X
Consult a qualified specialist workshop.  
The left or right-hand brake lamp is faulty.  
b
Left brake  
lamporRighht brake  
lamp  
X
Consult a qualified specialist workshop.  
The left or right-hand main-beam headlamp is faulty.  
b
Left mainn beam or  
Right maiin beam  
X
Check whether you are permitted to replace the bulb yourself  
(Y page 125).  
or  
X
Consult a qualified specialist workshop.  
The left or right-hand licence plate lamp is faulty.  
b
Number plaate lampp  
X
Consult a qualified specialist workshop.  
Display messages  
273  
Display messages  
Possible causes/consequences and M Solutions  
The rear foglamp is faulty.  
b
Rear foglamp  
X
Check whether you are permitted to replace the bulb yourself  
(Y page 125).  
or  
X
Consult a qualified specialist workshop.  
The front left or front right parking lamp is faulty.  
b
Front lefft parking  
lamp or Front  
X
Check whether you are permitted to replace the bulb yourself  
(Y page 125).  
or  
right parrkingg lampp  
X
Consult a qualified specialist workshop.  
The reversing lamp is faulty.  
b
Reversinng lighhtt  
X
Check whether you are permitted to replace the bulb yourself  
(Y page 125).  
or  
X
Consult a qualified specialist workshop.  
The left or right-hand tail lamp is faulty.  
b
Left taill lamp or  
X
Consult a qualified specialist workshop.  
Right taiil lamp  
The left or right-hand daytime driving lamp is faulty.  
b
X
Check whether you are permitted to replace the bulb yourself  
Left daytimme driv‐  
ing lamp or Right  
daytimee drivingg  
lamp  
(Y page 125).  
or  
X
Consult a qualified specialist workshop.  
The exterior lighting is faulty.  
b
Malfuncttioonn SSeeee  
Owner's MManual  
X
Consult a qualified specialist workshop.  
Vehicles with trailer tow hitch: a fuse may have blown.  
X
Pull over and stop the vehicle safely as soon as possible, paying  
attention to road and traffic conditions.  
X
Safeguard the vehicle against rolling away (Y page 184).  
X
Check the fuses (Y page 355).  
X
If necessary, replace the blown fuse. Observe the warning notes  
as you do so.  
If the multifunction display still shows the display message:  
X
Consult a qualified specialist workshop.  
Z
Display messages  
274  
Display messages  
Possible causes/consequences and M Solutions  
The light sensor is faulty.  
b
AUTO lightss inoper‐  
ative  
X
Consult a qualified specialist workshop.  
The lights are still switched on when you leave the vehicle. A  
warning tone also sounds.  
b
Switch offf lights  
X
Turn the light switch to the à position.  
You are driving without dipped-beam headlamps.  
b
Switch on heeadlamps  
X
Turn the light switch to the L or à position.  
Adaptive Main-beam Adaptive Highbeam Assist is deactivated and temporarily inoper-  
Assist currrenttllyy  
unavaillabllee SSeeee  
Owner's MManual  
ative.  
Possible causes:  
R
the windscreen is dirty in the camera's field of vision  
R
visibility is impaired due to heavy rain, snow or fog  
X
Clean the windscreen.  
If the system detects that the camera is fully operational again, the  
Adaptivve Mainn--bbeeaamm AAssssiisstt aavvaaiillaabbllee aaggaaiinn message is  
displayed.  
Adaptive Highbeam Assist is operational again.  
Adaptive Main-beam Adaptive Highbeam Assist is faulty.  
Assist inopperaattiivvee  
X
Consult a qualified specialist workshop.  
Display messages  
275  
Engine  
Display messages  
Possible causes/consequences and M Solutions  
The coolant level is too low.  
+
Top up cooolant See  
Owner'ss Manuuaall  
! Avoid making long journeys with too little coolant in the engine  
cooling system. The engine will otherwise be damaged.  
X
Top up the coolant, observing the warning notes before doing so  
(Y page 326).  
If you have to top up the coolant frequently:  
X
Contact a qualified specialist workshop and have the engine  
cooling system checked.  
The fan motor is faulty.  
?
?
X
If the coolant temperature is below 120 †, you can continue  
driving to the nearest qualified specialist workshop.  
X
Avoid putting the engine under heavy load as you do so, e.g.  
driving in mountainous terrain and stop-start traffic.  
The coolant is too hot.  
A warning tone also sounds.  
Coolant Sttopp vveehhii‐‐  
cle Switcch engine  
off  
WARNING  
G
Never drive with an overheated engine. Driving when your engine  
is overheated can cause some fluids which may have leaked into  
the engine compartment to catch fire.  
In addition, steam from an overheated engine can cause serious  
burns, which can occur just by opening the bonnet.  
There is a risk of injury.  
X
Stop the vehicle immediately, paying attention to road and traf-  
fic conditions, and switch off the engine.  
X
Safeguard the vehicle against rolling away (Y page 184).  
X
Wait until the engine has cooled down.  
X
Make sure that the air supply to the engine radiator is not  
blocked, e.g. by frozen slush.  
X
Do not start the engine again until the display message goes out  
and the coolant temperature is below 120 †. The engine may  
otherwise be damaged.  
X
Pay attention to the coolant temperature display.  
If the temperature increases again:  
X
Consult a qualified specialist workshop immediately.  
Under normal operating conditions and with the specified coolant  
level, the coolant temperature may rise to 120 †.  
Z
Display messages  
276  
Display messages  
Possible causes/consequences and M Solutions  
The battery is not being charged.  
A warning tone also sounds.  
Possible causes:  
#
See Owner'ss Manual  
R
faulty alternator  
R
torn poly-V-belt  
R
a malfunction in the electronics  
! Do not continue driving. The engine could otherwise overheat.  
X
Stop the vehicle immediately, paying attention to road and traf-  
fic conditions, and switch off the engine.  
X
Safeguard the vehicle against rolling away (Y page 184).  
X
Consult a qualified specialist workshop.  
The battery is no longer being charged and the battery charge level  
is too low.  
A warning tone also sounds.  
#
Stop vehiccle See  
Owner's MManual  
X
Stop the vehicle immediately, paying attention to road and traf-  
fic conditions, and switch off the engine.  
X
Safeguard the vehicle against rolling away (Y page 184).  
X
Observe the instructions in the # See Owner'ss Manual  
display message.  
X
Consult a qualified specialist workshop.  
The engine oil level has dropped to the minimum level.  
A warning tone also sounds.  
4
Check enng. oil  
lev. when next  
refuelllingg  
! Avoid long journeys when there is too little coolant in the cool-  
ing system. Otherwise the engine will be damaged.  
X
Check the oil level when next refuelling, at the latest  
(Y page 324).  
X
If necessary, top up the engine oil (Y page 325).  
If the engine oil needs topping up more often:  
X
Contact a qualified specialist workshop and have the engine  
checked.  
Information on approved engine oils can be obtained from any  
qualified specialist workshop or on the Internet at http://  
bevo.mercedes-benz.com.  
Display messages  
277  
Display messages  
Possible causes/consequences and M Solutions  
The engine oil level has dropped to the minimum level.  
4
Add 1 litree engine  
oil when neext refu‐  
elling  
! Avoid long journeys when there is too little coolant in the cool-  
ing system. Otherwise the engine will be damaged.  
X
Check the oil level when next refuelling, at the latest  
(Y page 324).  
X
If necessary, top up the engine oil (Y page 325).  
If the engine oil needs topping up more often:  
X
Contact a qualified specialist workshop and have the engine  
checked.  
Information on approved engine oils can be obtained from any  
qualified specialist workshop or on the Internet at http://  
bevo.mercedes-benz.com.  
The engine oil level is too low. There is a risk of engine damage.  
4
Engine oill level  
Stop vehicle  
X
Stop the vehicle immediately, paying attention to road and traf-  
fic conditions, and switch off the engine.  
X
Safeguard the vehicle against rolling away (Y page 184).  
Switch engine off  
X
Check the engine oil level (Y page 324).  
X
If necessary, top up the engine oil (Y page 325).  
The fuel level has dropped into the reserve range.  
Operation of the auxiliary heating is deactivated if the fuel level  
drops into the reserve range.  
æ
Reserve fueel level  
X
Refuel at the nearest filling station.  
There is very little fuel in the fuel tank.  
The auxiliary heating cannot be operated.  
ç
X
Refuel at the nearest filling station without fail.  
Vehicles with a diesel engine: the engine air filter is dirty and must  
be replaced.  
¸
Replace air ccleaner  
X
Consult a qualified specialist workshop.  
Vehicles with a diesel engine: there is water in the fuel filter. The  
water must be drained off.  
!
Clean the fuel fil‐  
ter  
X
Consult a qualified specialist workshop.  
Z
Display messages  
278  
Driving systems  
Display messages  
Possible causes/consequences and M Solutions  
Based on certain criteria, ATTENTION ASSIST has detected fatigue  
or a lack of concentration on the part of the driver. A warning tone  
also sounds.  
À
Attention Assist:  
Take a break!  
X
If necessary, take a break.  
During long journeys, take regular breaks in good time so that you  
get enough rest.  
ATTENTION ASSIST is inoperative.  
À
Attention Assist  
inoperrative  
X
Consult a qualified specialist workshop.  
The HOLD function is deactivated. The vehicle is skidding.  
A warning tone also sounds.  
ë
Off  
X
Reactivate the HOLD function later (Y page 204).  
The HOLD function is deactivated. When the brake pedal is firmly  
depressed, an activation condition is not fulfilled.  
A warning tone also sounds.  
X
Check the activation conditions for the HOLD function  
(Y page 204).  
Lane Keeping  
Lane Keeping Assist is deactivated and temporarily inoperative.  
Possible causes:  
Assist currrently  
unavaillable See  
Owner's Manual  
R
the windscreen is dirty in the camera's field of vision  
R
visibility is impaired due to heavy rain, snow or fog  
R
there have been no lane markings for an extended period  
R
the lane markings are worn, dark or covered, e.g. by dirt or snow  
Once the causes listed above no longer apply, the display message  
goes out.  
Lane Keeping Assist is operational again.  
If the display message does not disappear:  
X
Pull over and stop the vehicle safely as soon as possible, paying  
attention to road and traffic conditions.  
X
Safeguard the vehicle against rolling away (Y page 184).  
X
Clean the windscreen.  
Lane Keeping  
Assist inopeerativvee  
Lane Keeping Assist is faulty.  
X
Consult a qualified specialist workshop.  
Display messages  
279  
Display messages  
Possible causes/consequences and M Solutions  
Blind Spott Assist  
curreentlyy unavvaaiill‐‐  
able See OOwner's  
Manual  
Blind Spot Assist is temporarily inoperative.  
Possible causes:  
R
the radar sensor system is temporarily inoperative, e.g. due to  
electromagnetic radiation emitted by nearby TV or radio sta-  
tions or other sources of electromagnetic radiation  
R
the radar sensor system is outside the operating temperature  
range  
The yellow 9 indicator lamps also light up in the exterior mir-  
rors.  
Once the causes listed above no longer apply, the display message  
goes out.  
Blind Spot Assist is operational again.  
If the display message does not disappear:  
X
Pull over and stop the vehicle safely as soon as possible, paying  
attention to road and traffic conditions.  
X
Safeguard the vehicle against rolling away (Y page 184).  
X
Restart the engine.  
Active Bliind Spott  
Assist noot avaaila‐‐  
ble whenn towing a  
trailerr See Own‐  
er's Manual.  
Blind Spot Assist is deactivated while towing a trailer.  
You have established the electrical connection between the trailer  
and your vehicle.  
X
Press a on the steering wheel to confirm the display mes-  
sage.  
Blind Spott Assist  
inoperrativvee  
Blind Spot Assist is faulty.  
The yellow 9 indicator lamps also light up in the exterior mir-  
rors.  
X
Consult a qualified specialist workshop.  
Park Assist cancel‐ The driver's door is open and the driver's seat belt has not been  
led  
fastened.  
X
Repeat the parking process with the seat belt fastened and the  
driver's door closed.  
You inadvertently touched the multifunction steering wheel while  
steering intervention was active.  
X
While steering intervention is active, make sure not to touch the  
multifunction steering wheel.  
The vehicle has started to skid and ESP® has intervened.  
X
Use Active Parking Assist again later (Y page 212).  
Z
Display messages  
280  
Display messages  
Possible causes/consequences and M Solutions  
Park Assist inoper‐ You have just carried out a large number of turning or parking  
ative  
manoeuvres.  
Active Parking Assist will become available again after approx-  
imately ten minutes (Y page 212).  
X
Pull over and stop the vehicle safely as soon as possible, paying  
attention to road and traffic conditions.  
X
Switch off and restart the engine.  
If the multifunction display still shows the display message:  
X
Consult a qualified specialist workshop.  
PARKTRONIC is faulty.  
X
Consult a qualified specialist workshop.  
Park Assist  
switcheed off  
The vehicle is parked. A warning tone also sounds.  
The display message disappears automatically.  
Trafficc Sign  
Traffic Sign Assist is temporarily inoperative.  
Possible causes:  
Assist cuurrenttllyy  
unavaillabllee SSeeee  
Owner's MManual  
R
the windscreen is dirty in the camera's field of vision  
R
visibility is impaired due to heavy rain, snow or fog  
X
Clean the windscreen.  
If the system detects that the camera is fully operational, the dis-  
play message disappears.  
Traffic Sign Assist is operational again.  
Trafficc Sign  
Assisst inooperaattiivvee  
Traffic Sign Assist is faulty.  
X
Consult a qualified specialist workshop.  
DISTRONIC PLUSS off DISTRONIC PLUS has been deactivated (Y page 196).  
If it was not deactivated by the driver, a warning tone also sounds.  
DISTRONIIC PLUSS  
availabble agaiinn  
DISTRONIC PLUS is operational again after having been tempo-  
rarily unavailable. You can now reactivate DISTRONIC PLUS  
(Y page 196).  
Display messages  
281  
Display messages  
DISTRONIC PLUS cur‐ DISTRONIC PLUS is temporarily inoperative.  
Possible causes/consequences and M Solutions  
rently unavvailabllee  
See Owner'ss Manual  
Possible causes:  
R
the radar sensor system is temporarily inoperative, e.g. due to  
electromagnetic radiation emitted by nearby TV or radio sta-  
tions or other sources of electromagnetic radiation  
R
the system is outside the operating temperature range  
R
the on-board voltage is too low.  
A warning tone also sounds.  
Once the causes listed above no longer apply, the display message  
goes out.  
DISTRONIC PLUS is operational again.  
If the display message does not disappear:  
X
Pull over and stop the vehicle safely as soon as possible, paying  
attention to road and traffic conditions.  
X
Safeguard the vehicle against rolling away (Y page 184).  
X
Restart the engine.  
DISTRONIIC PLUSS  
inoperrativvee  
DISTRONIC PLUS is faulty. Adaptive Brake Assist may also have  
failed.  
A warning tone also sounds.  
X
Consult a qualified specialist workshop.  
DISTRONIC PLUS sus‐ You have depressed the accelerator pedal. DISTRONIC PLUS is no  
pended  
longer controlling the speed of the vehicle.  
X
Remove your foot from the accelerator pedal.  
DISTRONIIC PLUSS  
- - - kkmm//h  
An activation condition for DISTRONIC PLUS is not fulfilled.  
X
Check the activation conditions for DISTRONIC PLUS  
(Y page 196).  
DISTRONIC PLUS and DISTRONIC PLUS and SPEEDTRONIC are faulty. A warning tone  
SPEEDTROONIICC iinnoopp‐‐  
erative  
also sounds.  
X
Consult a qualified specialist workshop.  
Cruise control and SPEEDTRONIC and cruise control are malfunctioning.  
SPEEDTROONIICC iinnoopp‐‐  
erative  
A warning tone also sounds.  
X
Consult a qualified specialist workshop.  
Z
Display messages  
282  
Display messages  
Possible causes/consequences and M Solutions  
SPEEDTRONNIICC ssuuss‐‐  
pended  
If you depress the accelerator pedal beyond the pressure point  
(kickdown), SPEEDTRONIC is switched to passive mode.  
The speed limitation is not active.  
X
Drive slower than the stored speed and without kickdown.  
X
Call up the last speed stored again.  
or  
X
Set a new speed.  
When the display message disappears, the speed limitation is  
active.  
R
Cruise coontroll  
- - - kkmm//h  
A condition for activating cruise control has not been met.  
You have tried to store a speed below 30 km/h, for example.  
®
®
R
ESP is deactivated The yellow ESP OFF warning lamp is lit.  
X
If conditions permit, drive faster than 30 km/h and store the  
speed.  
or  
X
Check the activation conditions for cruise control (Y page 191).  
or  
X
®
Reactivate ESP (Y page 248).  
120 km/h!  
Maximumm speed  
exceeded  
Only for certain countries: the maximum speed has been excee-  
ded.  
In addition, the multifunction display shows 120 km/h!.  
X
Drive more slowly.  
Display messages  
283  
Tyres  
Display messages  
Possible causes/consequences and M Solutions  
Tyre pressssuurree  
Check tyre(s))  
The tyre pressure loss warning system has detected a significant  
loss in pressure.  
A warning tone also sounds.  
Possible causes:  
R
you have changed the positions of the wheels and tyres or fitted  
new wheels and tyres  
R
the tyre pressure in one or more tyres has dropped  
WARNING  
G
Underinflated tyres pose the following risks:  
R
the tyres may burst, especially as the load and vehicle speed  
increase  
R
the tyres may wear excessively and/or unevenly, which may  
greatly impair tyre traction  
R
the driving characteristics, as well as steering and braking, may  
be greatly impaired  
There is a risk of an accident.  
X
Stop the vehicle without making any sudden steering or braking  
manoeuvres. Pay attention to the traffic conditions as you do so.  
X
Safeguard the vehicle against rolling away (Y page 184).  
X
Check the tyres and, if necessary, follow the instructions for a  
flat tyre (Y page 340).  
X
Check the tyre pressures and, if necessary, correct the tyre  
pressure.  
X
Restart the tyre pressure loss warning system when the tyre  
pressure is correct (Y page 364).  
Check tyre pprreess‐‐  
The tyre pressure loss warning system generated a display mes-  
sures then restart sage and has not been restarted since.  
Run Flat IInnddiiccaattoorr  
X
Set the correct tyre pressure in all four tyres.  
X
Restart the tyre pressure loss warning system (Y page 364).  
Run Flat Indicator The tyre pressure loss warning system is faulty.  
inoperativvee  
X
Consult a qualified specialist workshop.  
Rectify ttyyrree pprreess‐‐ The tyre pressure is too low in at least one of the tyres, or the tyre  
sure  
pressure difference between the wheels is too great.  
X
Check the tyre pressures at the next opportunity (Y page 364).  
X
If necessary, correct the tyre pressure.  
X
Restart the tyre pressure monitor (Y page 366).  
Z
Display messages  
284  
Display messages  
Possible causes/consequences and M Solutions  
Check tyyre(s))  
The tyre pressure in one or more tyres has dropped significantly.  
The wheel position appears in the multifunction display.  
A warning tone also sounds.  
WARNING  
G
Underinflated tyres pose the following risks:  
R
the tyres may burst, especially as the load and vehicle speed  
increase  
R
the tyres may wear excessively and/or unevenly, which may  
greatly impair tyre traction  
R
the driving characteristics, as well as steering and braking, may  
be greatly impaired  
There is a risk of an accident.  
X
Stop the vehicle without making any sudden steering or braking  
manoeuvres. Pay attention to the traffic conditions as you do so.  
X
Safeguard the vehicle against rolling away (Y page 184).  
X
Check the tyres and, if necessary, follow the instructions for a  
flat tyre (Y page 340).  
X
Check the tyre pressure (Y page 364).  
X
If necessary, correct the tyre pressure.  
Warning tyre defect The tyre pressure in one or more tyres has dropped suddenly. The  
wheel position appears in the multifunction display.  
WARNING  
G
If you drive with a flat tyre, there is a risk of the following hazards:  
R
a flat tyre affects the ability to steer or brake the vehicle  
R
you could lose control of the vehicle  
R
continued driving with a flat tyre will cause excessive heat build-  
up and possibly a fire  
There is a risk of an accident.  
X
Stop the vehicle without making any sudden steering or braking  
manoeuvres. Pay attention to the traffic conditions as you do so.  
X
Safeguard the vehicle against rolling away (Y page 184).  
X
Check the tyres and, if necessary, follow the instructions for a  
flat tyre (Y page 340).  
Display messages  
285  
Display messages  
Possible causes/consequences and M Solutions  
Tyre presss. moni‐  
tor currrently  
unavaillabllee  
No signals can be received from the tyre pressure sensors due to  
strong RF interference. The tyre pressure monitor is temporarily  
malfunctioning.  
X
Drive on.  
The tyre pressure monitor restarts automatically as soon as the  
cause has been rectified.  
Wheel sennsor((ss))  
missing  
There is no signal from the tyre pressure sensor of one or several  
wheels. The pressure of the affected tyre is not displayed in the  
multifunction display.  
X
Have the faulty tyre pressure sensor replaced at a qualified spe-  
cialist workshop.  
Tyre presss. moni‐  
The wheels fitted do not have suitable tyre pressure sensors. The  
tor inoperativvee No tyre pressure monitor is deactivated.  
wheel ssensorss  
X
Fit wheels with suitable tyre pressure sensors.  
The tyre pressure monitor is activated automatically after driv-  
ing for a few minutes.  
Tyre presss. moni‐  
tor inopperativvee  
The tyre pressure monitor is faulty.  
X
Consult a qualified specialist workshop.  
Vehicle  
Display messages  
Possible causes/consequences and M Solutions  
Depress bbrake to  
start eengine  
You have attempted to start the engine with the transmission in  
position N without depressing the brake pedal.  
X
Depress the brake pedal.  
To shift oout of P  
or N, deepress  
brake annd start  
engine  
You have attempted to shift the transmission to position R or D  
without starting the engine.  
X
Start the engine.  
X
Depress the brake pedal.  
i It is only possible to shift the transmission from position P to  
the desired position if you depress the brake pedal. Only then  
can the parking lock be deactivated. If you do not depress the  
brake pedal, the DIRECT SELECT lever can still be moved but the  
parking lock remains engaged.  
i At transmission fluid temperatures below Ò20 † you can only  
shift out of position P into another transmission position when  
the engine is running.  
Z
Display messages  
286  
Display messages  
Possible causes/consequences and M Solutions  
Apply brrake to  
deselect PParkk (P)  
position  
You have attempted to shift the transmission to position R, N or D  
without depressing the brake pedal.  
X
Depress the brake pedal.  
Risk of veehicle  
rolling TTranssmiiss‐‐  
sion not in P  
The driver's door is open or not fully closed and the transmission  
is in position R, N or D.  
A warning tone also sounds.  
WARNING  
G
The vehicle may roll away.  
There is a risk of an accident.  
X
Shift the transmission to position P.  
X
Safeguard the vehicle against rolling away (Y page 184).  
X
Close the driver's door fully.  
Without chhanginngg  
gear, consuult work‐  
shop  
You cannot change the transmission position due to a malfunction.  
A warning tone also sounds.  
If transmission position D is selected:  
X
Drive to a qualified specialist workshop without shifting the  
transmission from position D.  
If transmission position R, N or P is selected:  
X
Safeguard the vehicle against rolling away (Y page 184).  
X
Consult a qualified specialist workshop.  
Only selecct Park  
(P) when vehicle  
is statioonaryy  
The vehicle is moving.  
X
Pull over and stop the vehicle safely as soon as possible, paying  
attention to road and traffic conditions.  
X
Shift the transmission to position P.  
Reversiing not  
The automatic transmission is malfunctioning. You cannot drive in  
poss. Consult work‐ reverse.  
shop  
X
Consult a qualified specialist workshop.  
Transmisssiioonn MMaall‐‐  
function  
The automatic transmission is malfunctioning.  
X
Consult a qualified specialist workshop.  
Transmisssiioonn MMaall‐‐  
functioon Stopp  
The automatic transmission is malfunctioning.  
X
Pull over and stop the vehicle safely as soon as possible, paying  
attention to road and traffic conditions.  
X
Safeguard the vehicle against rolling away (Y page 184).  
X
Consult a qualified specialist workshop.  
Display messages  
287  
Display messages  
Possible causes/consequences and M Solutions  
Stop vehicle Shift The automatic transmission has overheated.  
to P Leavee engine  
running  
X
Drive on carefully.  
If the display message disappears, the automatic transmission  
is available again.  
If the multifunction display still shows the display message:  
X
Pull over and stop the vehicle safely as soon as possible, paying  
attention to road and traffic conditions.  
X
Safeguard the vehicle against rolling away (Y page 184).  
X
Wait until the automatic transmission has cooled down and the  
display message goes out.  
Auxiliaryy battteerryy  
malfunnctioonn  
The auxiliary battery for the automatic transmission is no longer  
being charged.  
X
Consult a qualified specialist workshop.  
X
Until then, set the transmission to position P before you switch  
off the engine.  
X
Before leaving the vehicle, apply the electric parking brake.  
Clutch oveerheaatteedd  
The clutch is under considerable load and the permitted operating  
Avoid pulling away temperature has been exceeded. A warning tone also sounds.  
If neceessary,,  
quickly rreleasee  
and engagge the  
clutch  
Avoid frequent pulling away and driving at walking pace over lon-  
ger distances.  
X
Pull over and stop the vehicle safely as soon as possible, paying  
attention to road and traffic conditions.  
X
Safeguard the vehicle against rolling away (Y page 184).  
X
Leave the engine running.  
The clutch is cooled more quickly with the engine running.  
or  
X
If possible, continue driving at a steady speed.  
X
Remove your foot from the clutch pedal and do not allow the  
clutch to slip.  
The clutch may also cool down during the journey.  
It may take several minutes for it to cool down. When the clutch  
has cooled down, the display message disappears. The clutch is  
fully operational again.  
For enginee start  
depresss clutch  
You have attempted to start the engine without depressing the  
clutch pedal.  
X
Fully depress the clutch pedal.  
X
Restart the engine.  
Z
Display messages  
288  
Display messages  
Possible causes/consequences and M Solutions  
The engine has stalled while pulling away, e.g. because the clutch  
pedal was released too quickly.  
X
Depress the clutch pedal again.  
The engine starts automatically.  
X
Slowly release the clutch pedal to pull away.  
Trans. oil overhea‐ Mercedes-AMG vehicles: the transmission oil has overheated.  
ted Drive oon with  
care  
Manual drive program M and the temporarily active manual drive  
program are no longer available. Engine power output is reduced.  
X
Allow the vehicle to cool down.  
4matic currrenttllyy  
unavaiilabllee  
4MATIC has overheated. The vehicle is only driven by the front  
wheels.  
X
Drive on.  
The airflow cools 4MATIC more quickly.  
When the display message goes out, 4MATIC is available again  
and the vehicle is driven by all four wheels.  
4matic inoperaattiivvee 4MATIC is malfunctioning. The vehicle is only driven by the front  
wheels.  
X
Consult a qualified specialist workshop.  
The tailgate is open.  
A
WARNING  
G
When the engine is running, exhaust gases can enter the vehicle  
interior if the tailgate is open.  
There is a risk of poisoning.  
X
Close the tailgate.  
The bonnet is open.  
A warning tone also sounds.  
?
WARNING  
G
The open bonnet may then block your view when the vehicle is in  
motion.  
There is a risk of an accident.  
X
Pull over and stop the vehicle safely as soon as possible, paying  
attention to road and traffic conditions.  
X
Safeguard the vehicle against rolling away (Y page 184).  
X
Close the bonnet.  
Display messages  
289  
Display messages  
Active bonnet mal‐‐ The active bonnet (pedestrian protection) is not active due to a  
Possible causes/consequences and M Solutions  
functionn See Own‐‐  
er's Manual  
malfunction or because it has already been triggered.  
X
Consult a qualified specialist workshop.  
At least one door is open. A warning tone also sounds.  
C
X
Close all doors.  
The trailer tow hitch is not correctly engaged.  
A warning tone also sounds.  
j
Check trrailerr  
hitch lock  
WARNING  
G
If the ball coupling is not engaged, the trailer may come loose.  
There is a risk of an accident.  
X
Stop the vehicle immediately, paying attention to road and traf-  
fic conditions, and switch off the engine.  
X
Safeguard the vehicle against rolling away (Y page 184).  
X
Engage the trailer coupling's ball coupling in the end position  
(Y page 232).  
The on-board voltage is too low. The auxiliary heating has switched  
itself off or cannot be switched on (Y page 148).  
&
inoperatiivvee BBaatt‐‐  
tery Low  
X
Drive for a considerable distance.  
Thebatterycharges. Theauxiliaryheating isoperationalagainas  
soon as the on-board electrical system voltage is sufficient.  
There is too little fuel in the fuel tank. The auxiliary heating cannot  
be switched on (Y page 148).  
&
inoperatiivvee Refuel  
vehicle  
X
Refuel at the nearest filling station.  
The auxiliary heating is temporarily malfunctioning or faulty.  
If the vehicle is on a level surface and the engine has cooled down:  
&
inoperattivvee SSeeee  
Owner's MManual  
X
Make up to four attempts to switch on the auxiliary heating,  
waiting several minutes between each attempt (Y page 148).  
If the auxiliary heating does not switch on:  
X
Consult a qualified specialist workshop.  
Z
Display messages  
290  
Display messages  
Possible causes/consequences and M Solutions  
The power steering assistance is faulty.  
A warning tone also sounds.  
Ð
Power steerring mal‐  
functionn See Own‐‐  
er's MManual  
WARNING  
G
You will need to use more force to steer.  
There is a risk of an accident.  
X
Check whether you are able to apply the extra force required.  
If you are able to steer safely:  
X
Drive on carefully.  
X
Consult a qualified specialist workshop immediately.  
If you are unable to steer safely:  
X
Do not drive on.  
X
Consult a qualified specialist workshop.  
The electric steering lock is malfunctioning.  
Ð
Steering mmalffuunncc‐‐  
tion Seee Owner's  
Manual  
WARNING  
G
The steering may be locked by the electric steering lock.  
There is a risk of an accident.  
X
Pull over and stop the vehicle safely as soon as possible, paying  
attention to road and traffic conditions.  
X
Safeguard the vehicle against rolling away (Y page 184).  
X
Do not drive on.  
X
Consult a qualified specialist workshop.  
The electric steering lock was unable to unlock the steering.  
_
X
Remove the key from the ignition lock.  
Before sttartinngg  
X
To unlock the steering, move the steering wheel slightly.  
the engiine, turn  
the steerinng wheel.  
X
Insert the key into the ignition lock again.  
Telephonee No ser‐‐  
vice  
Your vehicle is outside the network provider's transmitter/  
receiver range.  
X
Wait until the mobile phone operational readiness symbol  
appears in the multifunction display.  
The washer fluid level in the washer fluid reservoir has dropped  
below the minimum.  
¥
Top up washeer fluid  
X
Top up the washer fluid (Y page 327).  
Display messages  
291  
Display messages  
Possible causes/consequences and M Solutions  
Wiper malfunccttiioonn‐‐ The windscreen wipers are defective.  
ing  
X
Consult a qualified specialist workshop.  
Hazard waarningg  
lampss malffunccttiioonn‐‐  
ing  
The hazard warning lamps are faulty.  
X
Consult a qualified specialist workshop.  
Key  
Display messages  
Possible causes/consequences and M Solutions  
You have put the wrong key in the ignition lock.  
Â
Key does not  
X
Use the correct key.  
belong to vvehiclee  
The key needs to be replaced.  
Â
Replacce key  
X
Consult a qualified specialist workshop.  
The key battery is discharged.  
Â
Change keyy batter‐‐  
ies  
X
Replace the battery (Y page 86).  
The key is not in the vehicle.  
A warning tone also sounds.  
If the engine is switched off, you can no longer lock the vehicle  
centrally or start the engine.  
Â
Key not deteected  
(red display message)  
X
Pull over and stop the vehicle safely as soon as possible, paying  
attention to road and traffic conditions.  
X
Safeguard the vehicle against rolling away (Y page 184).  
X
Locate the key.  
Because there is interference from a strong source of radio waves,  
the key is not detected whilst the engine is running.  
A warning tone also sounds.  
X
Pull over and stop the vehicle safely as soon as possible, paying  
attention to road and traffic conditions.  
X
Safeguard the vehicle against rolling away (Y page 184).  
X
Insert the key into the ignition lock and bring into key mode.  
Z
Warning and indicator lamps in the instrument cluster  
292  
Display messages  
Possible causes/consequences and M Solutions  
The key is currently undetected.  
Â
Key not dettected  
(white display mes-  
sage)  
X
Change the location of the key in the vehicle.  
If the key still cannot be detected:  
X
Operate the vehicle with the key in the ignition lock if necessary.  
The key is continually undetected.  
KEYLESS-GO is temporarily malfunctioning or is defective. A warn-  
ing tone also sounds.  
Â
Remove sttartinngg  
buttonn, then  
inserrt key  
X
Insert the key into the ignition lock and turn it to the desired  
position.  
X
Consult a qualified specialist workshop.  
Warning and indicator lamps in the instrument cluster  
General notes  
Some systems perform a selftest when the ignition is switched on. Some warning and indicator  
lamps may temporarily switch on or flash during the test. This behaviour is nothing to be  
concerned about.  
The warning and indicator lamps will alert you to a malfunction if they switch on or flash after  
the engine is started or while driving.  
Safety  
Seat belts  
Problem  
Possible causes/consequences and M Solutions  
ü
The seat belt warning lamp reminds the driver and front passenger  
to fasten their seat belts.  
Only for certain coun-  
tries: the red seat belt  
warning lamp lights up  
for 6 seconds after the  
engine starts.  
X
Fasten your seat belt (Y page 44).  
ü
The driver's seat belt is not fastened.  
Only for certain coun-  
tries: the red seat belt  
warning lamp lights up  
after the engine starts.  
In addition, a warning  
tone sounds for up to  
6 seconds.  
X
Fasten your seat belt (Y page 44).  
The warning tone ceases.  
Warning and indicator lamps in the instrument cluster  
293  
Problem  
Possible causes/consequences and M Solutions  
ü
The driver or passenger has not fastened their seat belt.  
The red seat belt warn-  
ing lamp lights up after  
the engine starts, as  
soon as the driver's or  
the front-passenger  
door is closed.  
X
Fasten your seat belt (Y page 44).  
The warning lamp goes out.  
There are objects on the front-passenger seat.  
X
Remove the objects from the front-passenger seat and stow  
them in a secure place.  
The warning lamp goes out.  
ü
The driver or passenger has not fastened their seat belt. At the  
same time, you are driving faster than 25 km/h or have briefly  
driven faster than 25 km/h.  
The red seat belt warn-  
ing lamp flashes and an  
intermittent audible  
warning sounds.  
X
Fasten your seat belt (Y page 44).  
The warning lamp goes out and the intermittent warning tone  
ceases.  
There are objects on the front-passenger seat. At the same time,  
you are driving faster than 25 km/h or have briefly driven faster  
than 25 km/h.  
X
Remove the objects from the front-passenger seat and stow  
them in a secure place.  
The warning lamp goes out and the intermittent warning tone  
ceases.  
Z
Warning and indicator lamps in the instrument cluster  
294  
Safety systems  
Problem  
Possible causes/consequences and M Solutions  
WARNING  
J
G
The red brake system  
warning lamp is lit while  
the engine is running. A  
warning tone also  
sounds.  
The brake boosting effect is malfunctioning and the braking char-  
acteristics may be affected.  
There is a risk of an accident.  
X
Pull over and stop the vehicle safely as soon as possible, paying  
attention to road and traffic conditions. Do not continue driving  
under any circumstances.  
X
Safeguard the vehicle against rolling away (Y page 184).  
X
Consult a qualified specialist workshop.  
X
Observe the additional display messages in the multifunction  
display.  
J
There is insufficient brake fluid in the brake fluid reservoir.  
The red brake system  
warning lamp is lit while  
the engine is running. A  
warning tone also  
sounds.  
WARNING  
G
Braking efficiency may be impaired.  
There is a risk of an accident.  
X
Pull over and stop the vehicle safely as soon as possible, paying  
attention to road and traffic conditions. Do not continue driving  
under any circumstances.  
X
Safeguard the vehicle against rolling away (Y page 184).  
X
Do not top up the brake fluid. Topping up will not rectify the fault.  
X
Consult a qualified specialist workshop.  
X
Observe the additional display messages in the multifunction  
display.  
Warning and indicator lamps in the instrument cluster  
295  
Problem  
Possible causes/consequences and M Solutions  
!
ABS (Anti-lock Braking System) has been deactivated due to a  
fault. Therefore, BAS (Brake Assist System), COLLISION PREVEN-  
TION ASSIST PLUS, ESP® (Electronic Stability Program), ESP®  
trailer stabilisation, the HOLD function, hill start assist, the adap-  
tive brake lights and PRE‑SAFE®, for example, are also deactiva-  
ted.  
The yellow ABS warning  
lamp is lit while the  
engine is running.  
ATTENTION ASSIST is deactivated.  
WARNING  
G
The brake system continues to function normally, but without the  
functions listed above. The wheels could therefore lock if you  
brake hard, for example.  
The steerability and braking characteristics may be severely affec-  
ted. The braking distance may increase in an emergency braking  
situation.  
If ESP® is not operational, ESP® is unable to stabilise the vehicle.  
There is an increased danger of skidding and risk of an accident.  
X
Observe the additional display messages in the multifunction  
display.  
X
Drive on carefully.  
X
Consult a qualified specialist workshop immediately.  
If the ABS control unit is faulty, there is also a possibility that other  
systems, such as the navigation system or the automatic trans-  
mission, will be unavailable.  
Z
Warning and indicator lamps in the instrument cluster  
296  
Problem  
Possible causes/consequences and M Solutions  
!
ABS is temporarily unavailable. Therefore, BAS, COLLISION PRE-  
VENTION ASSIST PLUS, ESP®, ESP® trailer stabilisation, EBD  
(electronic brake force distribution), the HOLD function, hill start  
assist, the adaptive brake lights and PRE‑SAFE®, for example, are  
also deactivated.  
The yellow ABS warning  
lamp is lit while the  
engine is running.  
Possible causes:  
R
Self-diagnosis is not yet complete  
R
The on-board voltage may be insufficient.  
ATTENTION ASSIST is deactivated.  
WARNING  
G
The brake system continues to function normally, but without the  
functions listed above. The front and rear wheels could therefore  
lock, for example, if you brake hard.  
The steerability and braking characteristics may be severely affec-  
ted. The braking distance may increase in an emergency braking  
situation.  
If ESP® is not operational, ESP® is unable to stabilise the vehicle.  
There is a risk of an accident.  
X
Carefully drive on a suitable stretch of road, making slight steer-  
ing movements at a speed above 20 km/h.  
The functions mentioned above are available again when the  
warning lamp goes out.  
If the warning lamp is still on:  
X
Observe the additional display messages in the multifunction  
display.  
X
Drive on carefully.  
X
Consult a qualified specialist workshop immediately.  
Warning and indicator lamps in the instrument cluster  
297  
Problem  
Possible causes/consequences and M Solutions  
!
EBD is faulty. Therefore, ABS, BAS, COLLISION PREVENTION  
ASSIST PLUS, ESP®, ESP® trailer stabilisation, the HOLD function,  
The yellow ABS warning  
lamp is lit while the  
engine is running. A  
warning tone also  
sounds.  
hill start assist, the adaptive brake lights and PRE‑SAFE®, for  
example, are also not available.  
ATTENTION ASSIST is deactivated.  
WARNING  
G
The brake system continues to function normally, but without the  
functions listed above. The front and rear wheels could therefore  
lock, for example, if you brake hard.  
The steerability and braking characteristics may be severely affec-  
ted. The braking distance may increase in an emergency braking  
situation.  
If ESP® is not operational, ESP® is unable to stabilise the vehicle.  
There is an increased danger of skidding and risk of an accident.  
X
Observe the additional display messages in the multifunction  
display.  
X
Drive on carefully.  
X
Consult a qualified specialist workshop immediately.  
ABS and ESP® are malfunctioning. Therefore, BAS, COLLISION  
! ÷ å J  
The red brake system PREVENTION ASSIST PLUS, EBD, PRE‑SAFE®, the HOLD function,  
hill start assist, the adaptive brake lights and ESP® trailer stabili-  
warning lamp and the  
yellow ABS, ESP® and sation, for example, are also not available.  
ESP® OFF warning  
ATTENTION ASSIST is deactivated.  
lamps are lit while the  
drive system is running.  
WARNING  
G
The brake system continues to function normally, but without the  
functions listed above. The front and rear wheels could therefore  
lock, for example, if you brake hard.  
The steerability and braking characteristics may be severely affec-  
ted. The braking distance may increase in an emergency braking  
situation.  
If ESP® is not operational, ESP® is unable to stabilise the vehicle.  
There is an increased danger of skidding and risk of an accident.  
X
Observe the additional display messages in the multifunction  
display.  
X
Drive on carefully.  
X
Consult a qualified specialist workshop immediately.  
Z
Warning and indicator lamps in the instrument cluster  
298  
Problem  
Possible causes/consequences and M Solutions  
ESP® or traction control has intervened because there is a risk of  
skidding or at least one wheel has started to spin.  
÷
The yellow ESP® warn-  
ing lamp flashes while Cruise control or DISTRONIC PLUS is deactivated.  
the vehicle is in motion.  
X
Only depress the accelerator pedal as far as necessary when  
pulling away.  
X
Accelerate more gently while the vehicle is in motion.  
X
Adapt your driving style to suit the road and weather conditions.  
®
X
Do not deactivate ESP .  
In rare cases (Y page 75) it may be best to deactivate ESP®.  
Observe the important safety notes on ESP® (Y page 73).  
ESP® is deactivated. ESP® will not stabilise the vehicle if it starts  
to skid or if a wheel starts to spin.  
å
The yellow ESP® OFF  
warning lamp is lit while  
the engine is running.  
WARNING  
G
If ESP® is deactivated, ESP® is unable to stabilise the vehicle.  
Further driving systems or driving safety systems are thus restric-  
ted.  
There is an increased danger of skidding and risk of an accident.  
®
X
Reactivate ESP .  
In rare cases (Y page 75) it may be best to deactivate ESP®.  
Observe the important safety notes on ESP® (Y page 73).  
Adapt your driving style to suit the road and weather conditions.  
X
If ESP® cannot be activated:  
X
Drive on carefully.  
®
X
Contact a qualified specialist workshop and have ESP  
checked.  
M
SPORT handling mode is activated.  
Mercedes-AMG vehi-  
cles only:  
The yellow SPORT han-  
dling mode warning  
lamp is lit while the  
engine is running.  
WARNING  
G
When SPORT handling mode is activated, ESP® is unable to sta-  
bilise the vehicle.  
There is an increased danger of skidding and risk of an accident.  
X
Only switch to SPORT handling mode in accordance with the  
conditions described in the "Activating/deactivating ESP®" sec-  
tion (Y page 75).  
Warning and indicator lamps in the instrument cluster  
299  
Problem  
Possible causes/consequences and M Solutions  
ESP®,ESP® trailer stabilisation, BAS, COLLISION PREVENTION  
÷ å  
The yellow ESP® and  
ESP® OFF warning  
lamps are lit while the  
engine is running.  
ASSIST PLUS, the HOLD function, hill start assist, the adaptive  
brake lights and PRE‑SAFE® are not available due to a malfunction.  
ATTENTION ASSIST is deactivated.  
WARNING  
G
The brake system continues to function normally, but without the  
functions listed above.  
The braking distance may thus increase in an emergency braking  
situation.  
If ESP® is not operational, ESP® is unable to stabilise the vehicle.  
There is an increased danger of skidding and risk of an accident.  
X
Observe the additional display messages in the multifunction  
display.  
X
Drive on carefully.  
X
Consult a qualified specialist workshop immediately.  
ESP®, ESP® trailer stabilisation, BAS, the HOLD function, hill start  
assist and PRE-SAFE® are temporarily unavailable.  
The adaptive brake lights and COLLISION PREVENTION ASSIST  
÷ å  
The yellow ESP® and  
ESP® OFF warning  
lamps are lit while the PLUS may also have failed.  
engine is running.  
ATTENTION ASSIST is deactivated.  
Self-diagnosis is not yet complete  
WARNING  
G
The brake system continues to function normally, but without the  
functions listed above.  
The braking distance may thus increase in an emergency braking  
situation.  
If ESP® is not operational, ESP® is unable to stabilise the vehicle.  
There is an increased danger of skidding and risk of an accident.  
X
Carefully drive on a suitable stretch of road, making slight steer-  
ing movements at a speed above 20 km/h.  
The functions mentioned above are available again when the  
warning lamp goes out.  
If the warning lamp is still on:  
X
Observe the additional display messages in the multifunction  
display.  
X
Drive on carefully.  
X
Consult a qualified specialist workshop immediately.  
Z
Warning and indicator lamps in the instrument cluster  
300  
Problem  
Possible causes/consequences and M Solutions  
X
!
Observe the additional display messages in the multifunction  
display.  
The red indicator lamp  
for the electric parking  
brake flashes or is lit  
and/or the yellow  
warning lamp for the  
electric parking brake  
is lit.  
6
The restraint system is faulty.  
The red restraint sys-  
tem warning lamp is lit  
while the engine is run-  
ning.  
WARNING  
G
The airbags or belt tensioners may either be triggered uninten-  
tionally or, in the event of an accident, may not be triggered.  
This poses an increased risk of injury.  
X
Observe the additional display messages in the multifunction  
display.  
X
Drive on carefully.  
X
Contact a qualified specialist workshop and have the restraint  
system checked.  
For further information about the restraint system, see  
(Y page 40).  
Warning and indicator lamps in the instrument cluster  
301  
Engine  
Problem  
Possible causes/consequences and M Solutions  
;
There may be a fault, for example:  
The yellow engine diag-  
nostics warning lamp  
lights up while the  
R
R
R
R
R
in the engine management  
in the fuel injection system  
in the exhaust system  
in the ignition system (for vehicles with petrol engines)  
in the fuel system  
engine is running.  
The emission limit values may be exceeded and the engine may be  
running in emergency mode.  
X
Consult a qualified specialist workshop immediately.  
Vehicles with a diesel engine: the fuel tank has been run dry  
(Y page 183).  
X
Start the engine three to four times after refuelling.  
If the yellow engine diagnostics warning lamp goes out, emer-  
gency running mode is cancelled. The vehicle need not be  
checked.  
æ
The fuel level has dropped into the reserve range.  
The yellow reserve fuel Operation of the auxiliary heating is deactivated if the fuel level  
warning lamp is on  
while the engine is run-  
ning.  
drops into the reserve range.  
X
Refuel at the nearest filling station.  
?
The temperature sensor for the coolant temperature gauge is  
faulty.  
The red coolant warn-  
ing lamp lights up while The coolant temperature is no longer being monitored. There is a  
the engine is running  
and the coolant tem-  
perature gauge is at the  
start of the scale.  
risk of engine damage if the coolant temperature is too high.  
X
Stop the vehicle immediately, paying attention to road and traf-  
fic conditions, and switch off the engine. Do not continue driving  
under any circumstances.  
X
Safeguard the vehicle against rolling away (Y page 184).  
X
Consult a qualified specialist workshop.  
Z

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