2013-2019 Mercedes GLA SUV On-board computer and displays User Manual
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USER MANUALS FOR EVERY MAKE & MODEL

On-board computer and displays for Your Mercedes GLA SUV First Generation (2013-2019)

Useful information ............................ 204
Important safety notes .................... 204
Displays and operation .................... 204
Menus and submenus ...................... 207
Display messages ............................. 221
Warning and indicator lamps in the
instrument cluster ............................ 252
203
On-board computer and displays
Useful information
i
This Operator's Manual describes all
models and all standard and optional equip-
ment of your vehicle available at the time of
publication of the Operator's Manual.
Country-specific differences are possible.
Please note that your vehicle may not be
equipped with all features described. This
also applies to safety-related systems and
functions.
i
Read the information on qualified special-
ist workshops (Y page 28).
Important safety notes
G
WARNING
If you operate information systems and com-
munication equipment integrated in the vehi-
cle while driving, you will be distracted from
traffic conditions. You could also lose control
of the vehicle. There is a risk of an accident.
Only operate the equipment when the traffic
situation permits. If you are not sure that this
is possible, park the vehicle paying attention
to traffic conditions and operate the equip-
ment when the vehicle is stationary.
You must observe the legal requirements for
the country in which you are currently driving
when operating the on-board computer.
G
WARNING
If the instrument cluster has failed or mal-
functioned, you may not recognize function
restrictions in systems 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.
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. Otherwise, a vehicle that is not oper-
ating safely may cause an accident.
If the operating safety of your vehicle is
impaired, pull over as soon as it is safe to do
so. Contact a qualified specialist workshop.
For an overview, see the instrument panel
illustration (Y page 33).
Displays and operation
Instrument cluster lighting
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.
The brightness control knob is located on the
bottom left of the instrument cluster
(Y page 33).
X
Turn the brightness control knob clockwise
or counter-clockwise.
If the light switch is set to Ã, T or
L, the brightness is dependent upon
the brightness of the ambient light.
i
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.
Coolant temperature display
G
WARNING
Opening the hood when the engine is over-
heated or when there is a fire in the engine
compartment could expose you to hot gases
or other service products. There is a risk of
injury.
Let an overheated engine cool down before
opening the hood. If there is a fire in the
engine compartment, keep the hood closed
and contact the fire department.
!
A display message is shown if the coolant
temperature is too high.
204
Displays and operation
On-board computer and displays
If the coolant temperature is over 248 ‡
(120 †), do not continue driving. The
engine will otherwise be damaged.
The coolant temperature gauge is in the
instrument cluster on the right-hand side.
Under normal operating conditions and with
the specified coolant level, the coolant tem-
perature may rise to 248 ‡ (120 †).
Tachometer
!
Do not drive in the overrevving range, as
this could damage the engine.
The red band in the tachometer indicates the
engine's overrevving range.
The fuel supply is interrupted 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 temperature measured
and does not record the road temperature.
The outside temperature display is in the mul-
tifunction display.
Changes in the outside temperature are dis-
played after a short delay.
Speedometer with segments
The speedometer is divided into segments on
vehicles with DISTRONIC PLUS.
The segments in the speedometer indicate
which speed range is available.
R
Cruise control activated (Y page 172):
The segments light up from the stored
speed to the maximum speed.
R
DISTRONIC PLUS activated (Y page 174):
One or two segments in the set speed
range light up.
R
DISTRONIC PLUS detects a vehicle in front:
The segments between the speed of the
vehicle in front and the stored speed light
up.
Operating the on-board computer
Overview
:
Multifunction display
;
Switches on the Voice Control System;
see the separate operating instructions
=
Right control panel
?
Left control panel
A
Back button
X
To activate the on-board computer: turn
the SmartKey to position 1 in the ignition
lock.
You can control the multifunction display and
the settings in the on-board computer using
the buttons on the multifunction steering
wheel.
Displays and operation
205
On-board computer and displays
Z
Left control panel
=
;
R
Calls up the menu and menu bar
9
:
Press briefly:
R
Scrolls in lists
R
Selects a submenu or function
R
In the
AudioAudio menu: selects a
stored station, an audio track or
a video scene
R
In the
TelTel (telephone) menu:
switches to the phone book and
selects a name or telephone
number
9
:
Press and hold:
R
In the
AudioAudio menu: selects the
previous/next station or selects
an audio track or a video scene
using rapid scrolling
R
In the
TelTel (telephone) menu:
starts rapid scrolling through the
phone book
a
R
Confirms a selection/display
message
R
In the
TelTel (Telephone) menu:
switches to the telephone book
and starts dialing the selected
number
R
In the
AudioAudio menu: stops the
station search function at the
desired station
Right control panel
~
R
Rejects or ends a call
R
Exits phone book/redial mem-
ory
6
R
Makes or accepts a call
R
Switches to the redial memory
W
X
R
Adjusts the volume
8
R
Mute
Back button
%
Press briefly:
R
Back
R
Switches off the Voice Control
System; see the separate oper-
ating instructions
R
Hides display messages
R
Exits the telephone book/redial
memory
%
Press and hold:
R
Calls up the standard display in
the
TripTrip menu
Multifunction display
:
Permanent display: outside temperature
or speed (Y page 216)
;
Time
=
Text field
?
Menu bar
A
Drive program (Y page 149)
B
Transmission position (Y page 149)
206
Displays and operation
On-board computer and displays
X
To show menu bar ?: press the =
or ; button on the steering wheel.
Menu bar ? disappears after a few seconds.
Text field = shows the selected menu or
submenu as well as display messages.
i
You can set the time using the audio sys-
tem or COMAND, see the separate operat-
ing instructions.
The following messages may appear in the
multifunction display:
Z
Gearshift recommendation, when
shifting manually (automatic trans-
mission) (Y page 154)
XjY
Active Parking Assist (Y page 189)
CRUISECRUISE
Cruise control (Y page 172)
_
Adaptive Highbeam Assist
(Y page 114)
¤
ECO start/stop function
(Y page 145)
ë
HOLD function (Y page 181)
Menus and submenus
Menu overview
Operating the on-board computer
(Y page 205).
Depending on the equipment installed in the
vehicle, you can call up the following menus:
R
TripTrip menu (Y page 207)
R
NaviNavi menu (navigation instructions)
(Y page 209)
R
AudioAudio menu (Y page 210)
R
TelTel menu (telephone) (Y page 211)
R
DriveAssistDriveAssist menu (assistance)
(Y page 213)
R
Serv.Serv. menu (Y page 215)
R
Sett.Sett. (Settings) menu (Y page 215)
R
AMGAMG menu in AMG vehicles (Y page 218)
The
AudioAudio, NaviNavi and TelTel menus differ slightly
in vehicles with an audio system and in vehi-
cles with COMAND. The examples given in
this Operator's Manual apply to vehicles
equipped with COMAND.
Trip menu
Standard display
X
Press and hold the % button on the
steering wheel until the
TripTrip menu with
trip odometer : and odometer ; is
shown.
Trip computer "From Start" or "From
Reset"
Example: trip computer "From Start"
:
Distance
;
Time
=
Average speed
?
Average fuel consumption
X
Press the = or ; button on the steer-
ing wheel to select the
TripTrip menu.
X
Press the 9 or : button to select
From StartFrom Start or From ResetFrom Reset.
The values in the
From StartFrom Start submenu are
calculated from the start of a journey whilst
the values in the
From ResetFrom Reset submenu are
calculated from the last time the submenu
was reset (Y page 208).
The
From StartFrom Start trip computer is automati-
cally reset when:
Menus and submenus
207
On-board computer and displays
Z
R
the ignition has been switched off for more
than four hours.
R
999 hours have been exceeded.
R
9,999 miles have been exceeded.
The
From ResetFrom Reset trip computer is automati-
cally reset if the value exceeds 9,999 hoursor
99,999 miles.
ECO display
Example: ECO display
The ECO display is not available for AMG vehi-
cles.
X
Press the = or ; button on the steer-
ing wheel to select the
TripTrip menu.
X
Press the 9 or : button to select
ECO DISPLAYECO DISPLAY.
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 163).
Displaying the range and current fuel
consumption
X
Press the = or ; button on the steer-
ing wheel to select the
TripTrip menu.
X
Press the 9 or : button to select the
approximate range : and the current fuel
consumption ; (not for AMG vehicles).
Approximate range : that can be covered is
calculated according to your current driving
style and the amount of fuel in the tank. If
there is only a small amount of fuel left in the
fuel tank, the display shows a vehicle being
refueled C instead of the range :.
Recuperation display = shows you if energy
is being 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.
Digital speedometer
:
Shift recommendation (Y page 154)
;
Digital speedometer
Gearshift recommendation : is not given on
AMG vehicles.
X
Press the = or ; button on the steer-
ing wheel to select the
TripTrip menu.
X
Press the 9 or : button to select the
digital speedometer.
Resetting values
Example: resetting the trip computer "From Start"
You can reset the values of the following func-
tions:
R
Trip odometer
R
"From Start" trip computer
208
Menus and submenus
On-board computer and displays
R
"From Reset" trip computer
R
ECO display
X
Press the = or ; button on the steer-
ing wheel to select the
TripTrip menu.
X
Press the 9 or : button to select the
function that you wish to reset.
X
Press the a button.
X
Press the : button to select
YesYes and
press the a button to confirm.
i
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 system menu
Displaying navigation instructions
X
Switch on the audio system or COMAND;
see the separate operating instructions.
X
Press the = or ; button on the steer-
ing wheel to select the
NaviNavi menu.
In the
NaviNavi menu, the multifunction display
shows navigation instructions. For more
information, see the separate operating
instructions.
Route guidance not active
:
Direction of travel
;
Current road
Route guidance active
No change of direction announced
:
Distance to the destination
;
Distance to the next change of direction
=
Current road
?
"Follow the road's course" symbol
Change of direction announced without a
lane recommendation
:
Road into which the change of direction
leads
;
Distance to change of direction and visual
distance display
=
Symbol for change of direction
When a change of direction is announced, you
will see symbol = for the change of direction
and distance graphic ;. The distance indi-
cator shortens towards the top of the display
as you approach the point of the announced
change of direction.
Menus and submenus
209
On-board computer and displays
Z
Change of direction announced with a
lane recommendation
:
Road into which the change of direction
leads
;
Distance to change of direction and visual
distance display
=
Recommended lane and new lane during a
change of direction
?
Lanes not recommended
A
Recommended lane
B
Change-of-direction symbol
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.
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.
Lane not recommended ?: you will not be
able to complete the next change of direction
if you stay in this lane.
Recommended lane A: in this lane you will
only be able to complete the next change of
direction without changing lane.
Other status indicators of the naviga-
tion system
R
O: you have reached the destination or an
intermediate destination.
R
New Route...New Route... or Calculating RouteCalculating Route:
calculating a new route.
R
Off MapOff Map or OffOff MappedMapped RoadRoad: the vehicle
position is outside the area of the digital
map (off-map position).
R
No RouteNo Route: no route could be calculated to
the selected destination.
Audio menu
Selecting a radio station
:
Waveband
;
Station frequency with memory position
The memory position is only displayed along
with station ; if this has been stored.
X
Switch on the audio system or COMAND
and select Radio; see the separate operat-
ing instructions.
X
Press the = or ; button on the steer-
ing wheel to select the
AudioAudio menu.
X
To select a stored station: briefly press
the 9 or : button.
X
To select a station from the station list:
press and briefly hold the 9 or :
button.
If no station list is received:
X
To select a station using the station
search: press and briefly hold the 9
or : button.
i
For information on changing waveband
and storing stations, see the separate oper-
ating instructions.
i
SIRIUS XM satellite radio functions like a
normal radio.
For more information on satellite radio
operation, see the separate operating
instructions.
210
Menus and submenus
On-board computer and displays
Operating an audio player or audio
media
Example: CD/DVD changer display
:
Current title
Audio data from various audio devices or
media can be played, depending on the equip-
ment installed in the vehicle.
X
Switch on the audio system or COMAND
and select audio CD or MP3 mode, see the
separate operating instructions.
X
Press the = or ; button on the steer-
ing wheel to select the
AudioAudio 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 desired track has been
reached.
If you press and hold 9 or :, the
rapid scrolling speed is increased. Not all
audio drives or data carriers support this
function.
If track information is stored on the audio
device or medium, the multifunction display
will show the number and title of the track.
The current track does not appear in audio
AUX mode (Auxiliary audio mode: external
audio source connected).
Video DVD operation
DVD changer display (example)
X
Switch on the audio system or COMAND
and select video DVD; see the separate
operating instructions.
X
Press the = or ; button on the steer-
ing wheel to select the
AudioAudio menu.
X
To select the next/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 : has
been reached.
Telephone menu
Introduction
G
WARNING
If you operate information systems and com-
munication equipment integrated in the vehi-
cle while driving, you will be distracted from
traffic conditions. You could also lose control
of the vehicle. There is a risk of an accident.
Only operate the equipment when the traffic
situation permits. If you are not sure that this
is possible, park the vehicle paying attention
to traffic conditions and operate the equip-
ment when the vehicle is stationary.
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 sepa-
rate operating instructions.
X
Switch on the audio system or COMAND;
see the separate operating instructions.
X
Establish a Bluetooth
®
connection to the
audio system or COMAND; see the sepa-
rate operating instructions.
X
Press the = or ; button on the steer-
ing wheel to select the
TelTel menu.
Menus and submenus
211
On-board computer and displays
Z
You will see one of the following display mes-
sages in the multifunction display:
R
Telephone ReadyTelephone Ready or the name of the net-
work provider: the mobile phone has found
a network and is ready to receive.
R
Telephone No ServiceTelephone No Service: there is no net-
work available or the mobile phone is
searching for a network.
Accepting a call
Example: incoming call
X
Press the 6 button on the steering
wheel to accept an incoming call.
If someone calls you when you are in the
TelTel
menu, a display message appears in the mul-
tifunction display.
You can accept a call even if you are not in the
TelTel menu.
Rejecting or ending a call
X
Press the ~ button on the steering
wheel.
You can end or reject a call even if you are not
in the
TelTel menu.
Dialing an entry from the phone book
X
Press the = or ; button on the steer-
ing wheel to select the
TelTel menu.
X
Press the 9, : or a button to
switch to the phone book.
X
Authorize access to the phone book on the
phone.
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 dialing.
or
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-
ing.
or
X
To exit the telephone book: press the
~ or % button.
Redialing
The on-board computer saves the last names
or numbers dialed in the redial memory.
X
Press the = or ; button on the steer-
ing wheel to select the
TelTel menu.
X
Press the 6 button to switch to the
redial memory.
X
Press the 9 or : button to select the
desired name or number.
X
Press the 6 or a button to start dial-
ing.
or
X
If you do not want to make a call: press
the ~ or % button.
212
Menus and submenus
On-board computer and displays
Assistance menu
Introduction
In the DriveAssistDriveAssist menu, you have the fol-
lowing options:
R
Displaying the assistance graphic
(Y page 213)
R
Activating/deactivating ESP
®
(Y page 213)
R
Activating/deactivating COLLISION PRE-
VENTION ASSIST PLUS (Y page 214)
R
Activating/deactivating ATTENTION
ASSIST (Y page 214)
R
Activating/deactivating Blind Spot Assist
(Y page 214)
R
Activating/deactivating Lane Keeping
Assist (Y page 214)
Assistance graphic
X
Press the = or ; button on the steer-
ing wheel to select the
DriveAssistDriveAssist menu.
X
Press 9 or : to select
AssistanceAssistance
Graphic
Graphic.
X
Press the a button.
The multifunction display shows the DIS-
TRONIC PLUS distance display in the assis-
tance graphic.
The assistance graphic displays the status of
and information from the following driving
systems or driving safety systems:
R
DISTRONIC PLUS (Y page 179)
R
COLLISION PREVENTION ASSIST PLUS
(Y page 66)
R
ATTENTION ASSIST (Y page 197)
R
Lane Keeping Assist (Y page 200)
R
DSR (Y page 184)
R
Off-road program (Y page 186)
R
Rear window wiper (Y page 122)
Deactivating/activating ESP
®
Observe the "Important safety notes" section
in the description of ESP (Y page 69).
G
WARNING
If you deactivate ESP
®
, ESP
®
no longer sta-
bilizes the vehicle. There is an increased risk
of skidding and an accident.
Only deactivate ESP
®
in the situations descri-
bed in the following.
It may be best to deactivate ESP
®
in the fol-
lowing situations:
R
when using snow chains
R
in deep snow
R
on sand or gravel
Activating/deactivating ESP
®
on AMG vehi-
cles (Y page 70).
For further information about ESP
®
, see
(Y page 68).
X
Start the engine.
X
Press the = or ; button on the steer-
ing wheel to select the
DriveAssistDriveAssist menu.
X
Press the 9 or : button to select
ESPESP.
Menus and submenus
213
On-board computer and displays
Z
X
Press the a button.
The current selection is displayed.
X
To activate/deactivate: press the a
button again.
ESP
®
is deactivated if the å warning
lamp in the instrument cluster lights up
continuously when the engine is running.
If the ÷ warning lamp and the å warn-
ing lamp are lit continuously, ESP
®
is not
available due to a malfunction.
Observe the information on warning lamps
(Y page 256).
Observe the information on display messages
(Y page 222).
Activating/deactivating COLLISION
PREVENTION ASSIST PLUS
X
Press the = or ; button on the steer-
ing wheel to select the
DriveAssistDriveAssist menu.
X
Press the 9 or : button to select
Collision Prevent. AssistCollision Prevent. Assist.
X
Press the a button.
The current selection is displayed.
X
To activate/deactivate: press the a
button again.
When COLLISION PREVENTION ASSIST
PLUS is deactivated, the æ symbol
appears in the multifunction display in the
assistance graphics display.
For further information about COLLISION
PREVENTION ASSIST PLUS, see (Y page 66).
Activating/deactivating ATTENTION
ASSIST
X
Press the = or ; button on the steer-
ing wheel to select the
DriveAssistDriveAssist menu.
X
Press the 9 or : button to select
ATTENTION ASSISTATTENTION ASSIST.
X
Press the a button.
The current selection is displayed.
X
To activate/deactivate: press the a
button again.
When ATTENTION ASSIST is deactivated,
the é symbol appears in the multifunc-
tion display in the assistance graphics dis-
play.
For further information about ATTENTION
ASSIST, see (Y page 197).
Activating/deactivating Blind Spot
Assist
X
Press the = or ; button on the steer-
ing wheel to select the
DriveAssistDriveAssist menu.
X
Press the 9 or : button to select
Blind Spot AssistBlind Spot Assist.
X
Press the a button.
The current selection is displayed.
X
To activate/deactivate: press the a
button again.
For further information about Blind Spot
Assist, see (Y page 198).
Activating/deactivating Lane Keeping
Assist
X
Press the = or ; button on the steer-
ing wheel to select the
DriveAssistDriveAssist menu.
X
Press the 9 or : button to select
Lane Keeping AssistLane Keeping Assist.
X
Press the a button.
The current selection is displayed.
X
Press a to confirm.
X
Press the : or 9 button to set
OffOff,
StandardStandard or AdaptiveAdaptive.
X
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.
For further information about Lane Keeping
Assist, see (Y page 200).
214
Menus and submenus
On-board computer and displays
Maintenance menu
In the Serv.Serv. menu, you have the following
options:
R
Calling up display messages in message
memory (Y page 221)
R
Restarting the tire pressure loss warning
system (Y page 331)
R
Checking the tire pressure electronically
(Y page 332)
R
Calling up the service due date
(Y page 296)
Settings menu
Introduction
In the Sett.Sett. menu, you have the following
options:
R
Changing the instrument cluster settings
R
Changing the light settings
R
Changing the vehicle settings
R
Changing the convenience settings
R
Restoring the factory settings
Instrument cluster
Selecting the unit of measurement for dis-
tance
You can determine whether the multifunction
display shows some messages in miles or
kilometers.
X
Press the = or ; button on the steer-
ing wheel to select the
SettSett menu.
X
Press the : or 9 button to select the
Instrument ClusterInstrument Cluster submenu.
X
Press a to confirm.
X
Press the : or 9 button to select the
Display Unit Speed-/OdometerDisplay Unit Speed-/Odometer func-
tion.
You will see the selected setting:
kmkm or
milesmiles.
X
Press the a button to save the setting.
The selected unit of measurement for dis-
tance applies to:
R
the digital speedometer in the
TripTrip menu
R
the odometer and the trip odometer
R
the trip computer
R
the current consumption and the range
R
navigation instructions in the
NaviNavi menu
R
cruise control
R
DISTRONIC PLUS
R
ASSYST PLUS service interval display
Switching the additional speedometer
on/off
The
Speedometer [km/h]Speedometer [km/h] or SpeedometerSpeedometer
[mph]
[mph] function allows you to choose whether
the multifunction display in the status area
always shows the speed in
km/hkm/h or in mphmph
instead of the outside temperature.
X
Press the = or ; button on the steer-
ing wheel to select the
SettSett menu.
X
Press the : or 9 button to select the
Instrument ClusterInstrument Cluster submenu.
X
Press a to confirm.
Menus and submenus
215
On-board computer and displays
Z
X
Press the : or 9 button to select the
Speedometer [km/h]Speedometer [km/h] or SpeedometerSpeedometer
[mph]
[mph] function.
You will see the selected setting:
onon or offoff.
X
Press the a button to save the setting.
Selecting the permanent display function
You can determine whether the multifunction
display permanently shows your speed or the
outside temperature.
X
Press the = or ; button on the steer-
ing wheel to select the
SettSett menu.
X
Press the : or 9 button to select the
Instrument ClusterInstrument Cluster submenu.
X
Press a to confirm.
X
Press the : or 9 button to select the
Permanent DisplayPermanent Display function.
You will see the selected setting
OutsideOutside
Temperature
Temperature or Speedometer [km/h]Speedometer [km/h]/
Speedometer [mph]Speedometer [mph].
X
Press the a button to save the setting.
i
The speed is highlighted in km/h or in
mph conversely to your speedometer.
Lights
Switching the daytime running lamps on/
off
Canada only: daytime running lamps are
required by law. You cannot set the DaytimeDaytime
Running Lights
Running Lights function via the on-board
computer.
X
Press the = or ; button on the steer-
ing wheel to select the
SettSett menu.
X
Press the : or 9 button to select the
LightLight submenu.
X
Press a to confirm.
X
Press the : or 9 button to select the
Daytime Running LightsDaytime Running Lights function.
If the
Daytime Running LightsDaytime Running Lights function
has been switched on, the cone of light and
the W symbol in the multifunction dis-
play are shown in orange.
X
Press the a button to save the setting.
Further information on daytime running
lamps (Y page 111).
Setting the brightness of the ambient
lighting
X
Press the = or ; button on the steer-
ing wheel to select the
SettSett menu.
X
Press the : or 9 button to select the
LightLight submenu.
X
Press a to confirm.
X
Press the : or 9 button to select the
Amb. Light +/-Amb. Light +/- function.
You will see the selected setting.
X
Change the setting with a.
X
Press the : or 9 button to adjust the
brightness to a level from
OffOff to Level 5Level 5
(bright).
X
Press the a or % button to save the
setting.
Activating/deactivating surround light-
ing and exterior lighting delayed switch-
off
If you have activated the
Surround Light‐Surround Light‐
ing
ing function and the light switch is set to
Ã, the following functions are activated
when it is dark:
R
surround lighting: the exterior lighting
remains lit for 40 seconds after unlocking
with the key. If you start the engine, the
surround lighting is switched off and auto-
matic headlamp mode is activated
(Y page 111).
R
exterior lighting delayed switch-off: the
exterior lighting remains lit for 60 seconds
after the engine is switched off. If you close
all the doors and the tailgate, the exterior
lighting goes off after 15 seconds.
X
Press the = or ; button on the steer-
ing wheel to select the
SettSett menu.
X
Press the : or 9 button to select the
LightLight submenu.
X
Press a to confirm.
216
Menus and submenus
On-board computer and displays
X
Press the : or 9 button to select the
Surround LightingSurround Lighting function.
When the
Surround LightingSurround Lighting function is
activated, the light cone and the area
around the vehicle are displayed in orange
in the multifunction display.
X
Press the a button to save the setting.
Deactivating delayed switch-off of the exte-
rior lighting temporarily:
X
Before leaving the vehicle, turn the Smart-
Key to position 0 in the ignition lock.
X
Turn the SmartKey to position 2 in the igni-
tion lock.
The exterior lighting delayed switch-off is
deactivated.
Delayed switch-off of the exterior lighting is
reactivated the next time you start the
engine.
i
Depending on your vehicle's equipment,
when the surround lighting and delayed
switch-off exterior lighting are on, the fol-
lowing light up:
R
Parking lamps
R
Front fog lamps
R
Low-beam headlamps
R
Daytime running lamps
R
Side marker lamps
R
Surround lighting in the exterior mirrors
Activating/deactivating the interior light-
ing delayed switch-off
If you activate the
Interior LightingInterior Lighting
Delay
Delay function, the interior lighting remains
on for 20 seconds after you remove the key
from the ignition lock.
X
Press the = or ; button on the steer-
ing wheel to select the
SettSett menu.
X
Press the : or 9 button to select the
LightLight submenu.
X
Press a to confirm.
X
Press the : or 9 button to select the
Interior Lighting DelayInterior Lighting Delay function.
If the InteriorInterior LightingLighting DelayDelay function
has been switched on, the vehicle interior is
displayed in orange in the multifunction
display.
X
Press the a button to save the setting.
Vehicle
Activating/deactivating the automatic
door locking mechanism
X
Press the = or ; button on the steer-
ing wheel to select the
SettSett menu.
X
Press the : or 9 button to select the
VehicleVehicle submenu.
X
Press a to confirm.
X
Press the : or 9 button to select the
Automatic Door LockAutomatic Door Lock function.
When the
AutomaticAutomatic DoorDoor LockLock function
is activated, the vehicle doors are displayed
in orange in the multifunction display.
X
Press the a button to save the setting.
If you activate the
Automatic Door LockAutomatic Door Lock
function, the vehicle is centrally locked above
a speed of approximately 9 mph (15 km/h).
For further information on the automatic lock-
ing feature, see (Y page 82).
Activating/deactivating the acoustic
locking verification signal
If you switch on the
AcousticAcoustic LockLock function,
an acoustic signal sounds when you lock the
vehicle.
X
Press the = or ; button on the steer-
ing wheel to select the
SettSett menu.
X
Press the : or 9 button to select the
VehicleVehicle submenu.
X
Press a to confirm.
X
Press the : or 9 button to select the
Acoustic LockAcoustic Lock function.
If the
AcousticAcoustic LockLock function is activated,
the & symbol in the multifunction dis-
play lights up orange.
X
Press the a button to save the setting.
Menus and submenus
217
On-board computer and displays
Z
Convenience
Switching the fold-in mirrors when lock-
ing feature on/off
This function is only available on vehicles with
the memory function (Y page 106).
When you activate the
Auto.Auto. MirrorMirror Fold‐Fold‐
ing
ing function, the exterior mirrors are folded
in when the vehicle is locked.
If you unlock the vehicle and then open a
door, the exterior mirrors fold out again.
If you have switched on the
Auto. MirrorAuto. Mirror
Folding
Folding function and you fold in the exterior
mirrors using the button on the door
(Y page 103), 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 ; button on the steer-
ing wheel to select the
SettSett menu.
X
Press the : or 9 button to select the
ConvenienceConvenience submenu.
X
Press a to confirm.
X
Press the : or 9 button to select the
Auto. Mirror FoldingAuto. Mirror Folding function.
If the
Auto. Mirror FoldingAuto. Mirror Folding function is
activated, the vehicle's exterior mirror is
displayed in orange in the multifunction
display.
X
Press the a button to save the setting.
Restoring the factory settings
X
Press the = or ; button on the steer-
ing wheel to select the
SettSett menu.
X
Press the : or 9 button to select the
Factory SettingFactory Setting submenu.
X
Press a to confirm.
The
Reset All Settings?Reset All Settings? message
appears.
X
Press the : or 9 button to select
NoNo
or YesYes.
X
Press a to confirm the selection.
If you have selected
YesYes, the multifunction
display shows a confirmation message.
For safety reasons, the
Daytime RunningDaytime Running
Lamps
Lamps function in the LightLight submenu is only
reset if the vehicle is stationary.
AMG menu in AMG vehicles
AMG displays
:
Digital speedometer
;
Gear indicator
=
Upshift indicator
?
Engine oil temperature
A
Coolant temperature
B
Transmission fluid temperature
X
Press = or ; on the steering wheel
to select the
AMGAMG menu.
Upshift indicator
UPUP = indicates that the
engine has reached the overrevving range
when in the manual gearshift program.
Upshift indicator
UPUP = fades out other mes-
sages until you have shifted up.
If the oil temperature is below 160 ‡ (71 †),
oil temperature ? is shown in blue. Avoid
driving at full engine output during this time.
If the transmission fluid temperature is below
122 ‡(50 †), oil temperature B is shown in
blue. Avoid driving at full engine output during
this time.
218
Menus and submenus
On-board computer and displays
SETUP
:
Drive program (
CC/SS/MM)
;
ESP
®
mode (
ONON/OFFOFF) or SPORT handling
mode (
SPORTSPORT)
SETUP shows the drive program, the ESP
®
(Electronic Stability Program) mode and the
SPORT handling mode.
X
Press the = or ; button on the steer-
ing wheel to select the
AMGAMG menu.
X
Press the 9 button repeatedly until
SETUP is displayed.
RACETIMER
Displaying and starting RACETIMER
:
Lap
;
RACETIMER
The RACETIMER is only intended for use on a
closed race circuit. Do not use the function on
public roads.
You can start the RACETIMER when the
engine is running or if the SmartKey is in posi-
tion 2 in the ignition lock.
X
Press the = or ; button on the steer-
ing wheel to select the
AMGAMG menu.
X
Press the 9 button repeatedly until the
RACETIMER is shown.
X
To start: press the a button to start the
RACETIMER.
Displaying the intermediate time
X
Press the = or ; button to select
Interm. TimeInterm. Time.
X
Press a to confirm.
The intermediate time is displayed for five
seconds.
Starting a new lap
:
RACETIMER
;
Fastest lap time (best lap)
=
Lap
X
Press a to confirm
New LapNew Lap.
i
It is possible to store a maximum of six-
teen laps. The 16th lap can only be com-
pleted with
Finish LapFinish Lap.
Stopping the RACETIMER
X
Press the % button on the steering
wheel.
X
Confirm
YesYes with a.
The RACETIMER interrupts timing when you
stop the vehicle and turn the SmartKey to
position 1 in the ignition lock. If you turn the
Menus and submenus
219
On-board computer and displays
Z
key to position 2 or 3 and then press a to
confirm
StartStart, timing is continued.
Resetting the current lap
X
Stop the RACETIMER.
X
Press the = or ; button to select
Reset LapReset Lap.
X
Press a to reset the lap time to "0".
Deleting all laps
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.
X
Reset the current lap.
X
Press a to confirm
ResetReset.
Reset Race Timer?Reset Race Timer? appears in the multi-
function display.
X
Press the : button to select
YesYes and
press the a button to confirm.
All laps are deleted.
Overall statistics
:
RACETIMER overall evaluation
;
Total time driven
=
Average speed
?
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
AMGAMG menu.
X
Press the 9 button repeatedly until the
overall evaluation is shown.
Lap statistics
:
Lap
;
Lap time
=
Average lap speed
?
Lap length
A
Top speed during lap
This function is only available if you have
stored at least two laps and have stopped the
RACETIMER.
X
Press = or ; on the steering wheel
to select the
AMGAMG menu.
X
Press the 9 button repeatedly until the
lap evaluation is shown.
Each lap is shown in a separate submenu.
The fastest lap is indicated by flashing sym-
bol :.
X
Press the 9 or : button to select a
different lap evaluation.
220
Menus and submenus
On-board computer and displays
Display messages
General notes
Display messages appear in the multifunction display.
Display messages with graphic displays may be shown in simplified form in the Operator's
Manual and may differ from the messages shown in the multifunction display.
Please respond in accordance with the display messages and follow the additional notes in this
Operator'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, the corresponding display messages are also deleted.
When you stop and park the vehicle, please observe the notes on the HOLD function
(Y page 181) and parking (Y page 159).
Hiding display messages
X
Press the a or % button on the steering wheel to hide the display message.
The display message is cleared.
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
Serv.Serv. menu.
If there are display messages, the multifunction display shows
2 Messages2 Messages, for example.
X
Press the 9 or : button to select the entry, e.g.
2 Messages2 Messages.
X
Press a to confirm.
X
Press the 9 or : button to scroll through the display messages.
Display messages
221
On-board computer and displays
Z
Safety systems
Display messages
Possible causes/consequences and MM Solutions
!÷
Currently Unavail‐Currently Unavail‐
able See Opera‐able See Opera‐
tor's Manualtor's Manual
ABS (Anti-lock Braking System), ESP
®
(Electronic Stability Pro-
gram), BAS (Brake Assist), the HOLD function and hill start assist
are temporarily unavailable.
COLLISION PREVENTION ASSIST PLUS may also have failed.
In addition, the ÷, å and ! warning lamps light up in the
instrument cluster.
ATTENTION ASSIST is deactivated.
Possible causes are:
R
self-diagnosis is not yet complete.
R
the on-board voltage may be insufficient.
G
WARNING
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 in an emergency braking situation can
increase.
If ESP
®
is not operational, ESP
®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X
Carefully drive a short distance on a suitable stretch of road,
making slight steering movements at a speed above 12 mph
(20 km/h).
If the display message disappears, the functions mentioned
above are available again.
If the display message continues to be displayed:
X
Drive on carefully.
X
Visit a qualified specialist workshop.
!÷
Inoperative SeeInoperative See
Operator's ManualOperator's Manual
ABS, ESP
®
, BAS, the HOLD function and hill start assist are
unavailable due to a malfunction.
COLLISION PREVENTION ASSIST PLUS may also have failed.
In addition, the J, ÷, å and ! warning lamps light up
in the instrument cluster.
ATTENTION ASSIST is deactivated.
G
WARNING
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
222
Display messages
On-board computer and displays
Display messages
Possible causes/consequences and MM Solutions
The steerability and braking characteristics may be severely affec-
ted. The braking distance in an emergency braking situation can
increase.
If ESP
®
is not operational, ESP
®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X
Drive on carefully.
X
Visit a qualified specialist workshop immediately.
÷
Currently Unavail‐Currently Unavail‐
able See Opera‐able See Opera‐
tor's Manualtor's Manual
ESP
®
, BAS, the HOLD function and hill start assist are temporarily
unavailable.
COLLISION PREVENTION ASSIST PLUS may also have failed.
In addition, the ÷ and å warning lamps light up in the
instrument cluster.
ATTENTION ASSIST is deactivated.
The self-diagnosis function might not be complete, for example.
G
WARNING
The brake system continues to function normally, but without the
functions listed above.
The braking distance in an emergency braking situation can thus
increase.
If ESP
®
is not operational, ESP
®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X
Carefully drive a short distance on a suitable stretch of road,
making slight steering movements at a speed above 12 mph
(20 km/h).
If the display message disappears, the functions mentioned
above are available again.
If the display message continues to be displayed:
X
Drive on carefully.
X
Visit a qualified specialist workshop.
Display messages
223
On-board computer and displays
Z
Display messages
Possible causes/consequences and MM Solutions
÷
Inoperative SeeInoperative See
Operator's ManualOperator's Manual
ESP
®
, BAS, the HOLD function and hill start assist are unavailable
due to a malfunction.
COLLISION PREVENTION ASSIST PLUS may also have failed.
In addition, the ÷ and å warning lamps light up in the
instrument cluster.
ATTENTION ASSIST is deactivated.
G
WARNING
The brake system continues to function normally, but without the
functions listed above.
The braking distance in an emergency braking situation can thus
increase.
If ESP
®
is not operational, ESP
®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X
Drive on carefully.
X
Visit a qualified specialist workshop.
T!
÷
Inoperative SeeInoperative See
Operator's ManualOperator's Manual
EBD (electronic brake force distribution), ABS, ESP
®
, BAS, the
HOLD function and hill start assist are not available due to a mal-
function.
COLLISION PREVENTION ASSIST PLUS may also have failed.
In addition, the ÷, å and ! warning lamps light up in the
instrument cluster and a warning tone sounds.
ATTENTION ASSIST is deactivated.
G
WARNING
The brake system continues to function normally, but without the
functions listed above. The front and rear wheels could therefore
lock if you brake hard, for example.
The steerability and braking characteristics may be severely affec-
ted. The braking distance in an emergency braking situation can
increase.
If ESP
®
is not operational, ESP
®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X
Drive on carefully.
X
Visit a qualified specialist workshop immediately.
F(USA
only)!(Canada
only)
The red F (USA only)/! (Canada only) indicator lamp
flashes and a warning tone sounds. A condition for automatic
release of the electric parking brake is not fulfilled (Y page 160).
You are driving with the electric parking brake applied.
X
Release the electric parking brake manually.
224
Display messages
On-board computer and displays
Display messages
Possible causes/consequences and MM Solutions
Please ReleasePlease Release
Parking BrakeParking Brake
The red F (USA only)/! (Canada only) indicator lamp
flashes and a warning tone sounds.
You are making an emergency stop using the electric parking
brake (Y page 160).
F(USA
only)!(Canada
only)
Parking Brake SeeParking Brake See
Operator's ManualOperator's Manual
The yellow ! warning lamp lights up.
The electric parking brake is malfunctioning.
To apply:
X
Switch the ignition off.
X
Press the electric parking brake handle for at least ten seconds.
X
Shift the transmission to P.
X
Consult a qualified specialist workshop.
The yellow ! warning lamp and the red F (USA only)/!
(Canada only) indicator lamp light up.
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
Release the electric parking brake automatically (Y page 160).
If the electric parking brake still cannot be released:
X
Do not drive on.
X
Consult a qualified specialist workshop.
Display messages
225
On-board computer and displays
Z
Display messages
Possible causes/consequences and MM Solutions
The red F (USA only)/! (Canada only) indicator lamp
flashes and the yellow ! warning lamp lights up.
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 F (USA only)/! (Canada only) indicator lamp
continues to flash:
X
Do not drive on.
X
Secure the vehicle against rolling away (Y page 349).
X
Shift the transmission to P.
X
Turn the front wheels towards the curb.
X
Consult a qualified specialist workshop.
The yellow ! warning lamp lights up. The red F (USA
only)/! (Canada only) 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 engage the electric parking brake:
X
Shift the transmission to P.
X
Visit a qualified specialist workshop.
If it is not possible to release the electric parking brake:
X
Release the electric parking brake automatically (Y page 160).
If the electric parking brake still cannot be released:
X
Consult a qualified specialist workshop.
226
Display messages
On-board computer and displays
Display messages
Possible causes/consequences and MM Solutions
The yellow ! warning lamp lights up. If you manually apply or
release the electric parking brake, the red F (USA only)/!
(Canada only) indicator lamp flashes.
The electric parking brake is malfunctioning. It is not possible to
apply the electric parking brake manually.
X
Shift the transmission to P.
X
Visit a qualified specialist workshop.
F(USA
only)!(Canada
only)
ParkingParking BrakeBrake Inop‐Inop‐
erativeerative
The yellow ! warning lamp lights up. The red F (USA
only)/! (Canada only) 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.
X
Remove the cause for the overvoltage or undervoltage, e.g. by
charging the battery or restarting the engine.
X
Engage or release the electric parking brake.
If it remains impossible to apply or release the electric parking
brake:
X
Switch off the ignition and turn it back on.
X
Engage or release the electric parking brake.
If the electric parking brake still cannot be released:
X
Consult a qualified specialist workshop.
If the electric parking brake still cannot be applied:
X
Visit a qualified specialist workshop.
The yellow ! warning lamp lights up and the red F (USA
only)/ ! (Canada only) indicator lamp flashes.
It is not possible to apply the electric parking brake manually.
X
Shift the transmission to P.
X
Visit a qualified specialist workshop.
F(USA
only)!(Canada
only)
Turn On the Igni‐Turn On the Igni‐
tion to Releasetion to Release
the Parking Brake
the Parking Brake
The red F (USA only)/! (Canada only) indicator lamp lights
up.
You attempted to release the electric parking brake while the igni-
tion was switched off.
X
Turn the SmartKey to position 1 in the ignition lock.
Display messages
227
On-board computer and displays
Z
Display messages
Possible causes/consequences and MM Solutions
$(USA
only)J(Canada
only)
Check Brake FluidCheck Brake Fluid
LevelLevel
There is not enough brake fluid in the brake fluid reservoir.
In addition, the $ (USA only)/J (Canada only) warning
lamp lights up in the instrument cluster and a warning tone
sounds.
G
WARNING
The braking effect 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
Secure the vehicle against rolling away (Y page 159).
X
Consult a qualified specialist workshop.
X
Do not add brake fluid. This does not correct the malfunction.
#
Check Brake PadCheck Brake Pad
WearWear
The brake pads/linings have reached their wear limit.
X
Visit a qualified specialist workshop.
G
InoperativeInoperative
One or more main features of the mbrace system are malfunc-
tioning.
X
Have the mbrace system checked immediately at a qualified
specialist workshop.
228
Display messages
On-board computer and displays
Display messages
Possible causes/consequences and MM Solutions
Collision Preven‐Collision Preven‐
tion Assist Plustion Assist Plus
Currently Unavail‐Currently Unavail‐
able See Opera‐able See Opera‐
tor's Manualtor's Manual
COLLISION PREVENTION ASSIST PLUS is temporarily not opera-
tional. Possible causes are:
R
function is impaired due to heavy rain or snow.
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
AMG vehicles: ESP
®
is deactivated.
R
the system is outside the operating temperature range.
R
the on-board voltage is too low.
When the causes stated above no longer apply, the display mes-
sage disappears.
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
Secure the vehicle against rolling away (Y page 159).
X
Restart the engine.
X
AMG vehicles: reactivate ESP
®
(Y page 70).
Collision Preven‐Collision Preven‐
tion Assist Plustion Assist Plus
inoperativeinoperative
COLLISION PREVENTION ASSIST PLUS is malfunctioning. The dis-
tance warning signal may also have failed.
X
Visit a qualified specialist workshop.
Display messages
229
On-board computer and displays
Z
Display messages
Possible causes/consequences and MM Solutions
Radar SensorsRadar Sensors
Dirty See Opera‐Dirty See Opera‐
tor's Manualtor's 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 are:
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.
When the causes stated above no longer apply, the display mes-
sage disappears. All driving systems/driving safety systems are
operative 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
Secure the vehicle against rolling away (Y page 159).
X
Switch off the engine.
X
Clean the sensors in the following locations (Y page 301):
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.
6
SRS MalfunctionSRS Malfunction
Service RequiredService Required
The restraint system is faulty. The 6 warning lamp also lights
up in the instrument cluster.
G
WARNING
The air bags or Emergency Tensioning Devices may either be trig-
gered unintentionally or, in the event of an accident, may not be
triggered.
There is an increased risk of injury.
X
Visit a qualified specialist workshop.
For further information about the restraint system, see
(Y page 42).
230
Display messages
On-board computer and displays
Display messages
Possible causes/consequences and MM Solutions
6
FrontFront LeftLeft Malfunc‐Malfunc‐
tion Servicetion Service
RequiredRequired or FrontFront
Right Malfunction
Right Malfunction
Service RequiredService Required
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.
G
WARNING
The air bags or Emergency Tensioning Devices may either be trig-
gered unintentionally or, in the event of an accident, may not be
triggered.
There is an increased risk of injury.
X
Visit a qualified specialist workshop.
6
Rear Left Malfunc‐Rear Left Malfunc‐
tion Servicetion Service
RequiredRequired or RearRear
Right Malfunction
Right Malfunction
Service RequiredService Required
The restraint system has malfunctioned at the rear on the left or
right. The 6 warning lamp also lights up in the instrument clus-
ter.
G
WARNING
The air bags or Emergency Tensioning Devices may either be trig-
gered unintentionally or, in the event of an accident, may not be
triggered.
There is an increased risk of injury.
X
Visit a qualified specialist workshop.
6
Left Side CurtainLeft Side Curtain
AirbagAirbag MalfunctionMalfunction
Service RequiredService Required
or Right Side Cur‐Right Side Cur‐
tain Airbag Mal‐
tain Airbag Mal‐
function Servicefunction Service
RequiredRequired
There is a malfunction in the left-hand or right-hand window cur-
tain air bag. The 6 warning lamp also lights up in the instrument
cluster.
G
WARNING
The left or right window curtain air bag may either be triggered
unintentionally or, in the event of an accident, may not be trig-
gered.
There is an increased risk of injury.
X
Visit a qualified specialist workshop.
Display messages
231
On-board computer and displays
Z
Display messages
Possible causes/consequences and MM Solutions
Front PassengerFront Passenger
Airbag DisabledAirbag Disabled
SeeSee Operator'sOperator's Man‐Man‐
ualual
The front-passenger air bag is deactivated during the journey, even
though:
R
an adult
or
R
a person larger than a certain size is occupying the front-
passenger seat
If additional forces are applied to the seat, the system may inter-
pret the occupant's weight as lower than it actually is.
G
WARNING
The front-passenger air bag does not deploy during an accident.
There is 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
Secure the vehicle against rolling away (Y page 159).
X
Switch the ignition off.
X
Have the occupant get out of the vehicle.
X
Keep the seat unoccupied, close the front-passenger door and
switch on the ignition.
X
Observe the PASSENGER AIR BAG indicator lamps in the center
console and the multifunction display and check the following:
Seat unoccupied and ignition switched on:
R
the PASSENGER AIR BAG OFF and PASSENGER AIR BAG ON
indicator lamps must light up simultaneously for approximately
six seconds.
R
after this, the PASSENGER AIR BAG OFF indicator lamp must be
lit and remain lit. If the indicator lamp is on, OCS has disabled the
front-passenger air bag (Y page 51).
R
the
Front Passenger Airbag Enabled See Operator'sFront Passenger Airbag Enabled See Operator's
Manual
Manual or Front Passenger Airbag Disabled See Oper‐Front Passenger Airbag Disabled See Oper‐
ator's Manual
ator's Manual 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 fulfilled, the front-passenger seat can be
occupied again. Whether the PASSENGER AIR BAG OFF or ON
indicator lamps remain lit or go out depends on how OCS classifies
the occupant.
232
Display messages
On-board computer and displays
Display messages
Possible causes/consequences and MM Solutions
If the conditions are not fulfilled, the system is not operating cor-
rectly.
X
Visit a qualified specialist workshop immediately.
For further information about the Occupant Classification System,
see (Y page 51).
Front PassengerFront Passenger
AirbagAirbag EnabledEnabled SeeSee
Operator's ManualOperator's Manual
The front-passenger air bag is enabled during the journey, even
though:
R
a child, a small adult or an object weighing less than the sys-
tem's weight threshold is located on the front-passenger seat
or
R
the front-passenger seat is unoccupied
The automatic front-passenger front air bag deactivation system
may detect objects or forces that are adding to the weight applied
to the seat.
G
WARNING
The air bag may deploy unintentionally.
There is 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
Secure the vehicle against rolling away (Y page 159).
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 that there are no objects on the seat adding to the
weight.
The system may otherwise detect the additional weight and
interpret the seat occupant's weight as greater than it actually
is.
X
Keep the seat unoccupied, close the front-passenger door and
switch on the ignition.
X
Observe the PASSENGER AIR BAG indicator lamps in the center
console and the multifunction display and check the following:
Seat unoccupied and ignition switched on:
R
the PASSENGER AIR BAG OFF and PASSENGER AIR BAG ON
indicator lamps must light up simultaneously for approximately
six seconds.
R
after this, the PASSENGER AIR BAG OFF indicator lamp must be
lit and remain lit. If the indicator lamp is on, OCS (Occupant
Display messages
233
On-board computer and displays
Z
Display messages
Possible causes/consequences and MM Solutions
Classification System) has deactivated the front-passenger air
bag (Y page 51).
R
the
Front Passenger Airbag Enabled See Operator'sFront Passenger Airbag Enabled See Operator's
Manual
Manual or Front Passenger Airbag Disabled See Oper‐Front Passenger Airbag Disabled See Oper‐
ator's Manual
ator's Manual 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 fulfilled, the front-passenger seat can be
occupied again. Whether the PASSENGER AIR BAG OFF or ON
indicator lamps remain lit or go out depends on how OCS classifies
the occupant.
If the conditions are not fulfilled, the system is not operating cor-
rectly.
X
Visit a qualified specialist workshop immediately.
For further information about the Occupant Classification System,
see (Y page 51).
Lights
i
Display messages about LEDs:
This display message will only appear if all LEDs have failed.
Display messages
Possible causes/consequences and MM Solutions
b
Check Left Corner‐Check Left Corner‐
ing Lighting Light or CheckCheck
Right Cornering
Right Cornering
LightLight
The left or right-hand cornering light is defective.
X
Check whether you are permitted to replace the bulb yourself
(Y page 117).
or
X
Visit a qualified specialist workshop.
b
Check Left LowCheck Left Low
BeamBeam or CheckCheck
Right Low Beam
Right Low Beam
The left or right-hand low-beam headlamp is defective.
X
Check whether you are permitted to replace the bulb yourself
(Y page 117).
or
X
Visit a qualified specialist workshop.
234
Display messages
On-board computer and displays
Display messages
Possible causes/consequences and MM Solutions
b
Check Rear LeftCheck Rear Left
Turn SignalTurn Signal or
Check Rear RightCheck Rear Right
Turn SignalTurn Signal
The rear left-hand or rear right-hand turn signal is defective.
X
Check whether you are permitted to replace the bulb yourself
(Y page 117).
or
X
Visit a qualified specialist workshop.
b
Check Front LeftCheck Front Left
Turn SignalTurn Signal or
Check Front RightCheck Front Right
Turn SignalTurn Signal
The front left-hand or front right-hand turn signal is defective.
X
Check whether you are permitted to replace the bulb yourself
(Y page 117).
or
X
Visit a qualified specialist workshop.
b
Check Left MirrorCheck Left Mirror
Turn SignalTurn Signal or
CheckCheck RightRight MirrorMirror
Turn SignalTurn Signal
The turn signal in the left-hand or right-hand exterior mirror is
defective.
X
Visit a qualified specialist workshop.
b
CheckCheck CenterCenter BrakeBrake
LampLamp
The high-mounted brake lamp is faulty.
X
Visit a qualified specialist workshop.
b
Check Left BrakeCheck Left Brake
LampLamp or CheckCheck
Right Brake Lamp
Right Brake Lamp
The left or right-hand brake lamp is defective.
X
Check whether you are permitted to replace the bulb yourself
(Y page 117).
or
X
Visit a qualified specialist workshop.
b
Check Left TailCheck Left Tail
and Brake Lampsand Brake Lamps or
Check Right TailCheck Right Tail
and Brake Lampsand Brake Lamps
The left or right-hand tail lamp/brake lamp is defective.
X
Check whether you are permitted to replace the bulb yourself
(Y page 117).
or
X
Visit a qualified specialist workshop.
b
Check Left HighCheck Left High
BeamBeam or CheckCheck
Right High Beam
Right High Beam
The left or right-hand high beam is defective.
X
Check whether you are permitted to replace the bulb yourself
(Y page 117).
or
X
Visit a qualified specialist workshop.
Display messages
235
On-board computer and displays
Z
Display messages
Possible causes/consequences and MM Solutions
b
License Plate LampLicense Plate Lamp
The left or right-hand license plate lamp is defective.
X
Visit a qualified specialist workshop.
b
Check Left FogCheck Left Fog
LampLamp or CheckCheck
Right Fog Lamp
Right Fog Lamp
The left-hand or right-hand front fog lamp is defective.
X
Visit a qualified specialist workshop.
b
Rear Fog LampRear Fog Lamp
The rear fog lamp is defective.
X
Check whether you are permitted to replace the bulb yourself
(Y page 117).
or
X
Visit a qualified specialist workshop.
b
Check Front LeftCheck Front Left
Parking LampParking Lamp or
Check Front RightCheck Front Right
Parking LampParking Lamp
The front left or front right parking or standing lamp is defective.
X
Check whether you are permitted to replace the bulb yourself
(Y page 117).
or
X
Visit a qualified specialist workshop.
b
Backup LightBackup Light
The backup lamp is defective.
X
Check whether you are permitted to replace the bulb yourself
(Y page 117).
or
X
Visit a qualified specialist workshop.
b
Check Left TailCheck Left Tail
LampLamp or CheckCheck
Right Tail Lamp
Right Tail Lamp
The left or right-hand tail lamp is defective.
X
Check whether you are permitted to replace the bulb yourself
(Y page 117).
or
X
Visit a qualified specialist workshop.
b
Check Front LeftCheck Front Left
Sidemarker LampSidemarker Lamp or
Check Front RightCheck Front Right
Sidemarker LampSidemarker Lamp
The left or right front side marker lamp is defective.
X
Visit a qualified specialist workshop.
236
Display messages
On-board computer and displays
Display messages
Possible causes/consequences and MM Solutions
b
Check Rear LeftCheck Rear Left
Sidemarker LampSidemarker Lamp or
Check Rear RightCheck Rear Right
Sidemarker LampSidemarker Lamp
The rear left or right side marker lamp is defective.
X
Visit a qualified specialist workshop.
b
CheckCheck LeftLeft DaytimeDaytime
Running LightRunning Light or
Check Right Day‐Check Right Day‐
time Running Lighttime Running Light
The left-hand or right-hand daytime running lamp is faulty.
X
Check whether you are permitted to replace the bulb yourself
(Y page 117).
or
X
Visit a qualified specialist workshop.
b
Active HeadlampsActive Headlamps
InoperativeInoperative
The active light function is defective.
X
Visit a qualified specialist workshop.
b
Malfunction SeeMalfunction See
Operator's ManualOperator's Manual
The exterior lighting is defective.
X
Visit a qualified specialist workshop.
b
AutoAuto LampLamp FunctionFunction
InoperativeInoperative
The light sensor is defective.
X
Visit a qualified specialist workshop.
b
Switch Off LightsSwitch Off Lights
The lights are still switched on when you leave the vehicle. A
warning tone also sounds.
X
Turn the light switch to Ã.
Adaptive HighbeamAdaptive Highbeam
Assist InoperativeAssist Inoperative
Adaptive Highbeam Assist is faulty.
X
Visit a qualified specialist workshop.
Adaptive HighbeamAdaptive Highbeam
Assist CurrentlyAssist Currently
Unavailable SeeUnavailable See
Operator's ManualOperator's Manual
Adaptive Highbeam Assist is deactivated and temporarily inoper-
ative. Possible causes are:
R
the windshield in the camera's field of vision is dirty.
R
visibility is impaired due to heavy rain, snow or fog.
X
Clean the windshield.
If the system detects that the camera is fully operational again, the
Adaptive Highbeam Assist Now AvailableAdaptive Highbeam Assist Now Available message is dis-
played.
Adaptive Highbeam Assist is operational again.
Display messages
237
On-board computer and displays
Z
Engine
Display messages
Possible causes/consequences and MM Solutions
+
Check CoolantCheck Coolant
Level See Opera‐Level See Opera‐
tor's Manualtor's Manual
The coolant level is too low.
!
Avoid making long journeys with too little coolant in the engine
cooling system. The engine will otherwise be damaged.
X
Add coolant, observing the warning notes before doing so
(Y page 295).
X
If coolant needs to be added more often than usual, have the
engine coolant system checked at a qualified specialist work-
shop.
?
The fan motor is faulty.
X
At coolant temperatures below 248 ‡ (120 †), drive to the
nearest qualified specialist workshop.
X
Avoid subjecting the engine to heavy loads, e.g. driving in moun-
tainous terrain, and stop-and-go traffic.
?
Coolant Too HotCoolant Too Hot
Stop Vehicle TurnStop Vehicle Turn
Engine OffEngine Off
The coolant is too hot.
A warning tone also sounds.
G
WARNING
Do not drive when your engine is overheated. This can cause some
fluids which may have leaked into the engine compartment to
catch fire.
Steam from the overheated engine can also cause serious burns
which can occur just by opening the hood.
There is a risk of injury.
X
Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X
Secure the vehicle against rolling away (Y page 159).
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 snow, slush or ice.
X
Do not start the engine again until the display message goes out
and the coolant temperature is below 248 ‡ (120 †). Other-
wise, the engine could be damaged.
X
Pay attention to the coolant temperature display.
X
If the temperature increases again, visit a qualified specialist
workshop immediately.
Under normal operating conditions and with the specified coolant
level, the coolant temperature may rise to 248 ‡ (120 †).
238
Display messages
On-board computer and displays
Display messages
Possible causes/consequences and MM Solutions
#
SeeSee Operator'sOperator's Man‐Man‐
ualual
The battery is not being charged.
A warning tone also sounds.
Possible causes are:
R
a defective alternator
R
a torn poly-V-belt
R
a malfunction in the electronics
X
Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
!
Do not continue driving. The engine could otherwise overheat.
X
Secure the vehicle against rolling away (Y page 159).
X
Consult a qualified specialist workshop.
#
Stop Vehicle SeeStop Vehicle See
Operator's ManualOperator's Manual
The battery is no longer being charged and the battery charge level
is too low.
A warning tone also sounds.
X
Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X
Secure the vehicle against rolling away (Y page 159).
X
Observe the instructions in the #
SeeSee Operator'sOperator's ManualManual
display message.
X
Consult a qualified specialist workshop.
#
Start Engine SeeStart Engine See
Operator's ManualOperator's Manual
The engine is switched off and the battery charge level is too low.
X
Switch off electrical consumers that you do not need, such as
the rear window defroster and interior lighting.
X
Leave the engine running for a few minutes or drive a long dis-
tance.
The battery is being charged.
Display messages
239
On-board computer and displays
Z
Display messages
Possible causes/consequences and MM Solutions
4
Check Engine OilCheck Engine Oil
At Next RefuelingAt Next Refueling
The engine oil level has dropped to the minimum level.
A warning tone also sounds.
X
Check the oil level when next refueling, at the latest
(Y page 293).
X
If necessary, add engine oil (Y page 294).
X
Have the engine checked at a qualified specialist workshop if
engine oil needs to be added more often than usual.
!
Avoid long journeys with too little engine oil. The engine will
otherwise be damaged.
Information on approved engine oils can be obtained from any
qualified specialist workshop or on the Internet at
m.
4
Check Engine OilCheck Engine Oil
LevelLevel (Add(Add 11 quart)quart)
The engine oil level has dropped to the minimum level.
X
Check the oil level when next refueling, at the latest
(Y page 294).
X
If necessary, add engine oil (Y page 294).
X
Have the engine checked at a qualified specialist workshop if
engine oil needs to be added more often than usual.
!
Avoid long journeys with too little engine oil. The engine will
otherwise be damaged.
Information on approved engine oils can be obtained from any
qualified specialist workshop or on the Internet at
.
4
Engine Oil LevelEngine Oil Level
Low Stop VehicleLow Stop Vehicle
Turn Engine OffTurn Engine Off
The oil level is too low. There is a risk of engine damage.
X
Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X
Secure the vehicle against rolling away (Y page 159).
X
Check the engine oil level (Y page 294).
X
If necessary, add engine oil (Y page 294).
æ
Fuel Level LowFuel Level Low
The fuel level has dropped into the reserve range.
X
Refuel at the nearest gas station.
240
Display messages
On-board computer and displays
Display messages
Possible causes/consequences and MM Solutions
ç
There is only a very small amount of fuel in the fuel tank.
X
Refuel at the nearest gas station without fail.
æ
Gas Cap LooseGas Cap Loose
The fuel system pressure is too low. The fuel filler cap is not closed
correctly or the fuel system is leaking.
X
Check that the fuel filler cap is correctly closed.
If the fuel filler cap is not correctly closed:
X
Close the fuel filler cap.
If the fuel filler cap is correctly closed:
X
Visit a qualified specialist workshop.
Driving systems
Display messages
Possible causes/consequences and MM Solutions
À
Attention Assist:Attention Assist:
Take a Break!Take a Break!
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.
X
If necessary, take a break.
During long journeys, take regular breaks in good time so you get
enough rest.
À
Attention AssistAttention Assist
InoperativeInoperative
ATTENTION ASSIST is inoperative.
X
Visit a qualified specialist workshop.
Ã
InoperativeInoperative
DSR (Downhill Speed Regulation) is deactivated due to a malfunc-
tion.
X
Have DSR checked at a qualified specialist workshop.
ë
OffOff
The HOLD function is deactivated. The vehicle is skidding.
A warning tone also sounds.
X
Reactivate the HOLD function later (Y page 181).
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 181).
Display messages
241
On-board computer and displays
Z
Display messages
Possible causes/consequences and MM Solutions
Lane KeepingLane Keeping
Assist CurrentlyAssist Currently
Unavailable SeeUnavailable See
Operator's ManualOperator's Manual
Lane Keeping Assist is deactivated and temporarily inoperative.
Possible causes are:
R
the windshield in the camera's field of vision is dirty.
R
visibility is impaired due to heavy rain, snow or fog.
R
there are no lane markings for a longer period.
R
the lane markings are worn, dark or covered, e.g. by dirt or snow.
When the causes stated above no longer apply, the display mes-
sage disappears.
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
Secure the vehicle against rolling away (Y page 159).
X
Clean the windshield.
Lane KeepingLane Keeping
Assist InoperativeAssist Inoperative
Lane Keeping Assist is faulty.
X
Visit a qualified specialist workshop.
Blind Spot AssistBlind Spot Assist
Currently Unavail‐Currently Unavail‐
able See Opera‐able See Opera‐
tor's Manualtor's Manual
Blind Spot Assist is temporarily inoperative. Possible causes are:
R
the sensors are dirty.
R
function is impaired due to heavy rain or snow.
R
the radar sensor system is outside the operating temperature
range.
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.
The yellow 9 indicator lamps also light up in the exterior mir-
rors.
When the causes stated above no longer apply, the display mes-
sage disappears.
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
Secure the vehicle against rolling away (Y page 159).
X
Clean the sensors (Y page 301).
X
Restart the engine.
242
Display messages
On-board computer and displays
Display messages
Possible causes/consequences and MM Solutions
Blind Spot AssistBlind Spot Assist
inoperativeinoperative
Blind Spot Assist is defective.
The yellow 9 indicator lamps also light up in the exterior mir-
rors.
X
Visit a qualified specialist workshop.
Park Assist Can‐Park Assist Can‐
celedceled
The driver's door is open and the driver's seat belt has not been
fastened.
X
Repeat the parking process with the seat belt fastened and the
driver's door closed.
You have inadvertently touched the multifunction steering wheel
while steering intervention was active.
X
While steering intervention is active, make sure that the multi-
function steering wheel is not touched unintentionally.
The vehicle has started to skid and ESP
®
has intervened.
X
Use Active Parking Assist again later (Y page 189).
ParkPark AssistAssist Inoper‐Inoper‐
ativeative
You have just carried out a large number of turning or parking
maneuvers.
Active Parking Assist will become available again after approx-
imately ten minutes (Y page 189).
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 display message continues to be displayed:
X
Visit a qualified specialist workshop.
PARKTRONIC is defective.
X
Visit a qualified specialist workshop.
DISTRONIC PLUS OffDISTRONIC PLUS Off
DISTRONIC PLUS has been deactivated (Y page 174). If it was
deactivated automatically, a warning tone also sounds.
DISTRONICDISTRONIC PLUSPLUS NowNow
AvailableAvailable
DISTRONIC PLUS is operational again after having been tempo-
rarily unavailable. You can now reactivate DISTRONIC PLUS
(Y page 174).
Display messages
243
On-board computer and displays
Z
Display messages
Possible causes/consequences and MM Solutions
DISTRONICDISTRONIC PLUSPLUS Cur‐Cur‐
rentlyrently UnavailableUnavailable
SeeSee Operator'sOperator's Man‐Man‐
ualual
DISTRONIC PLUS is temporarily inoperative. Possible causes are:
R
function is impaired due to heavy rain or snow.
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.
When the causes stated above no longer apply, the display mes-
sage disappears.
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
Secure the vehicle against rolling away (Y page 159).
X
Restart the engine.
DISTRONIC PLUSDISTRONIC PLUS
InoperativeInoperative
DISTRONIC PLUS is defective. Adaptive Brake Assist may also
have failed.
A warning tone also sounds.
X
Visit a qualified specialist workshop.
DISTRONICDISTRONIC PLUSPLUS Sus‐Sus‐
pendedpended
You have depressed the accelerator pedal. DISTRONIC PLUS is no
longer controlling the speed of the vehicle.
X
Remove your foot from the accelerator pedal.
DISTRONIC PLUSDISTRONIC PLUS
- - - mph- - - mph
An activation condition for DISTRONIC PLUS is not fulfilled.
X
Check the activation conditions for DISTRONIC PLUS
(Y page 175).
Cruise ControlCruise Control
InoperativeInoperative
Cruise control is defective.
A warning tone also sounds.
X
Visit a qualified specialist workshop.
Cruise ControlCruise Control
- - - mph- - - mph
A condition for activating cruise control has not been fulfilled.
You have tried to store a speed below 20 mph (30 km/h), for
example.
X
If conditions permit, drive faster than 20 mph (30 km/h) and
store the speed.
X
Check the activation conditions for cruise control (Y page 172).
244
Display messages
On-board computer and displays
Tires
Display messages
Possible causes/consequences and MM Solutions
CheckCheck
Tire Pressure SoonTire Pressure Soon
The tire pressure loss warning system has detected a significant
loss in pressure.
A warning tone also sounds.
Possible causes:
R
you have changed the wheels and tires or installed new wheels
and tires.
R
the tire pressure in one or more tires is not correct.
G
WARNING
With tire pressures which are too low, there is a risk of the fol-
lowing hazards:
R
they may burst, especially as the load and vehicle speed
increase.
R
they may wear excessively and/or unevenly, which may greatly
impair tire 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
maneuvers. Pay attention to the traffic conditions as you do so.
X
Secure the vehicle against rolling away (Y page 159).
X
Check the tires and, if necessary, follow the instructions for a
flat tire (Y page 306).
X
Check the tire pressures and, if necessary, correct the tire pres-
sure.
X
Restart the tire pressure loss warning system when the tire
pressure is correct (Y page 331).
CheckCheck TireTire PressurePressure
Then Restart RunThen Restart Run
Flat IndicatorFlat Indicator
The tire pressure loss warning system generated a display mes-
sage and has not been restarted since.
X
Set the correct tire pressure in all four tires.
X
Restart the tire pressure loss warning system (Y page 331).
Run Flat IndicatorRun Flat Indicator
InoperativeInoperative
The tire pressure loss warning system is faulty.
X
Visit a qualified specialist workshop.
Display messages
245
On-board computer and displays
Z
Display messages
Possible causes/consequences and MM Solutions
Please CorrectPlease Correct
Tire PressureTire Pressure
The tire pressure is too low in at least one of the tires, or the tire
pressure difference between the wheels is too great.
X
Check the tire pressures at the next opportunity (Y page 332).
X
If necessary, correct the tire pressure.
X
Restart the tire pressure monitor (Y page 334).
Check TiresCheck Tires
The tire pressure in one or more tires has dropped significantly.
The wheel position is displayed in the multifunction display.
A warning tone also sounds.
G
WARNING
With tire pressures which are too low, there is a risk of the fol-
lowing hazards:
R
they may burst, especially as the load and vehicle speed
increase.
R
they may wear excessively and/or unevenly, which may greatly
impair tire 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
maneuvers. Pay attention to the traffic conditions as you do so.
X
Secure the vehicle against rolling away (Y page 159).
X
Check the tires and, if necessary, follow the instructions for a
flat tire (Y page 306).
X
Check the tire pressure (Y page 332).
X
If necessary, correct the tire pressure.
246
Display messages
On-board computer and displays
Display messages
Possible causes/consequences and MM Solutions
Warning Tire Mal‐Warning Tire Mal‐
functionfunction
The tire pressure in one or more tires has dropped suddenly. The
wheel position is shown in the multifunction display.
G
WARNING
If you drive with a flat tire, there is a risk of the following hazards:
R
a flat tire affects the ability to steer or brake the vehicle.
R
you could lose control of the vehicle.
R
continued driving with a flat tire 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
maneuvers. Pay attention to the traffic conditions as you do so.
X
Secure the vehicle against rolling away (Y page 159).
X
Check the tires and, if necessary, follow the instructions for a
flat tire (Y page 306).
Tire Press. Moni‐Tire Press. Moni‐
tor Currentlytor Currently
UnavailableUnavailable
Due to a source of radio interference, no signals can be received
from the wheel sensors. The tire pressure monitor is temporarily
malfunctioning.
X
Drive on.
The tire pressure monitor restarts automatically as soon as the
problem has been solved.
Tire Press. Sen‐Tire Press. Sen‐
sor(s) Missingsor(s) Missing
There is no signal from the tire pressure sensor of one or several
wheels. The pressure of the affected tire is not displayed in the
multifunction display.
X
Have the faulty tire pressure sensor replaced at a qualified spe-
cialist workshop.
Tire Pressure Mon‐Tire Pressure Mon‐
itor Inoperativeitor Inoperative
No Wheel SensorsNo Wheel Sensors
The wheels mounted do not have a suitable tire pressure sensor.
The tire pressure monitor is deactivated.
X
Mount wheels with suitable tire pressure sensors.
The tire pressure monitor is activated automatically after driving
for a few minutes.
Tire Press. Moni‐Tire Press. Moni‐
tor Inoperativetor Inoperative
The tire pressure monitor is faulty.
X
Visit a qualified specialist workshop.
Display messages
247
On-board computer and displays
Z
Vehicle
Display messages
Possible causes/consequences and MM Solutions
Auxiliary BatteryAuxiliary Battery
MalfunctionMalfunction
The auxiliary battery for the automatic transmission is no longer
being charged.
X
Visit a qualified specialist workshop at the next opportunity.
X
Until then, set the automatic transmission to position P before
you switch off the engine.
X
Before leaving the vehicle, apply the electric parking brake.
Depress Brake toDepress Brake to
Start EngineStart Engine
You have attempted to start the engine with the transmission in
position N without depressing the brake pedal.
X
Depress the brake pedal.
ToTo DeselectDeselect PP oror N,N,
Depress Brake andDepress Brake and
Start EngineStart 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 Ò4 ‡(Ò20 †) you can
only shift out of position P into another transmission position
when the engine is running.
Apply Brake toApply Brake to
Shift from 'P'Shift from 'P'
You have attempted to move the transmission selector lever to
position R, N or D without depressing the brake pedal.
X
Depress the brake pedal.
Transmission NotTransmission Not
in P Risk of Vehi‐in P Risk of Vehi‐
cle Rolling Awaycle Rolling Away
The driver's door is open and the transmission is in position R, N or
D.
A warning tone also sounds.
G
WARNING
The vehicle may roll away.
There is a risk of an accident.
X
Shift the transmission to position P.
X
Secure the vehicle against rolling away (Y page 159).
248
Display messages
On-board computer and displays
Display messages
Possible causes/consequences and MM Solutions
Service RequiredService Required
DoDo NotNot ShiftShift GearsGears
Visit DealerVisit Dealer
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
Notify a qualified specialist workshop or breakdown service.
Only Shift to 'P'Only Shift to 'P'
when Vehicle iswhen Vehicle is
StationaryStationary
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.
Reversing Not Pos‐Reversing Not Pos‐
sible Servicesible Service
RequiredRequired
The automatic transmission is malfunctioning. You cannot back
up.
X
Visit a qualified specialist workshop.
Transmission Mal‐Transmission Mal‐
functionfunction
The automatic transmission is malfunctioning.
X
Visit a qualified specialist workshop.
Transmission Mal‐Transmission Mal‐
function Stopfunction Stop
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
Secure the vehicle against rolling away (Y page 159).
X
Consult a qualified specialist workshop.
StopStop vehiclevehicle ShiftShift
to P Leave engineto P Leave engine
runningrunning
The automatic transmission has overheated.
X
Drive on carefully.
The automatic transmission is available again when the display
message goes out.
If the display message continues to be displayed:
X
Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X
Secure the vehicle against rolling away (Y page 159).
X
Wait until the automatic transmission has cooled down and the
display message has disappeared.
Display messages
249
On-board computer and displays
Z
Display messages
Possible causes/consequences and MM Solutions
Trans.Trans. OilOil Overhea‐Overhea‐
ted Drive on withted Drive on with
CareCare
AMG vehicles: the transmission oil has overheated.
Manual drive program M and the temporarily active manual drive
program are no longer available. The engine power output is
reduced.
X
Allow the vehicle to cool down.
4matic Currently4matic Currently
UnavailableUnavailable
4MATIC (permanent all-wheel drive) 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 Inoperative4matic Inoperative
4MATIC is malfunctioning. The vehicle is only driven by the front
wheels.
X
Visit a qualified specialist workshop.
A
The tailgate is open.
G
WARNING
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 hood is open.
G
WARNING
The open hood may 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
Apply the electric parking brake.
X
Close the hood.
C
At least one door is open. A warning tone also sounds.
X
Close all the doors.
250
Display messages
On-board computer and displays
Display messages
Possible causes/consequences and MM Solutions
Ð
PowerPower SteeringSteering Mal‐Mal‐
function See Oper‐function See Oper‐
ator's Manualator's Manual
The power steering is malfunctioning.
A warning tone also sounds.
G
WARNING
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.
X
If you are able to steer safely: carefully drive on to a qualified
specialist workshop.
X
If you are unable to steer safely: do not drive on. Contact the
nearest qualified specialist workshop.
Telephone No Ser‐Telephone No Ser‐
vicevice
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.
¥
Check Washer FluidCheck Washer Fluid
The washer fluid level in the washer fluid reservoir has dropped
below the minimum.
i
If you do not mix antifreeze with the washer fluid in the winter
months, then the washer fluid could freeze in the washer fluid
reservoir. In this case, the
Check Washer FluidCheck Washer Fluid display mes-
sage may appear in the multifunction display.
X
Add washer fluid (Y page 296).
Wiper Malfunction‐Wiper Malfunction‐
inging
The windshield wipers are malfunctioning.
X
Visit a qualified specialist workshop.
Hazard WarningHazard Warning
Flashers Malfunc‐Flashers Malfunc‐
tioningtioning
The hazard warning lamps are faulty.
X
Visit a qualified specialist workshop.
Display messages
251
On-board computer and displays
Z
SmartKey
Display messages
Possible causes/consequences and MM Solutions
+
Key Does NotKey Does Not
Belong to VehicleBelong to Vehicle
You have put the wrong SmartKey in the ignition lock.
X
Use the correct SmartKey.
+
TakeTake YourYour KeyKey fromfrom
IgnitionIgnition
The SmartKey is in the ignition lock.
X
Remove the SmartKey.
+
Obtain a New KeyObtain a New Key
The SmartKey needs to be replaced.
X
Visit a qualified specialist workshop.
Warning and indicator lamps in the instrument cluster
Seat belts
Problem
Possible causes/consequences and MM Solutions
ü
After starting the
engine, the red seat
belt warning lamp lights
up for six seconds.
The seat belt warning lamp reminds the driver and front passenger
to fasten their seat belts.
X
Fasten your seat belt (Y page 44).
ü
After starting the
engine, the red seat
belt warning lamp lights
up. In addition, a warn-
ing tone sounds for up
to six seconds.
The driver's seat belt is not fastened.
X
Fasten your seat belt (Y page 44).
The warning tone ceases.
ü
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.
The driver or front passenger has not fastened their seat belt.
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.
252
Warning and indicator lamps in the instrument cluster
On-board computer and displays
Problem
Possible causes/consequences and MM Solutions
ü
The red seat belt warn-
ing lamp flashes and an
intermittent audible
warning sounds.
The driver or front passenger has not fastened their seat belt. The
vehicle is being driven faster than 15 mph (25 km/h) or has briefly
been driven faster than 15 mph (25 km/h).
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. The vehicle is being
driven faster than 15 mph (25 km/h) or has briefly been driven
faster than 15 mph (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.
Warning and indicator lamps in the instrument cluster
253
On-board computer and displays
Z
Safety systems
Problem
Possible causes/consequences and MM Solutions
$ (USA only)
J (Canada only)
The red brake system
warning lamp comes on
while the engine is run-
ning. A warning tone
also sounds.
There is not enough brake fluid in the brake fluid reservoir.
G
WARNING
The braking effect 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
Secure the vehicle against rolling away (Y page 159).
X
Do not add brake fluid. Adding more will not remedy the mal-
function.
X
Consult a qualified specialist workshop.
X
Observe the additional display messages in the multifunction
display.
!
The yellow ABS warning
lamp is lit while the
engine is running.
ABS (Anti-lock Braking System) is deactivated due to a malfunc-
tion. Therefore, BAS (Brake Assist), COLLISION PREVENTION
ASSIST, COLLISION PREVENTION ASSIST PLUS, ESP
®
(Electronic
Stability Program), the HOLD function and hill start assist, for
example, are also deactivated.
ATTENTION ASSIST is deactivated.
G
WARNING
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 in an emergency braking situation can
increase.
If ESP
®
is not operational, ESP
®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X
Observe the additional display messages in the multifunction
display.
X
Drive on carefully.
X
Visit a qualified specialist workshop.
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 not be available.
254
Warning and indicator lamps in the instrument cluster
On-board computer and displays
Problem
Possible causes/consequences and MM Solutions
!
The yellow ABS warning
lamp is lit while the
engine is running.
ABS is temporarily unavailable. BAS, COLLISION PREVENTION
ASSIST, COLLISION PREVENTION ASSIST PLUS, ESP
®
, EBD (elec-
tronic brake force distribution), the HOLD function and hill start
assist, for example, are therefore also deactivated.
Possible causes are:
R
self-diagnosis is not yet complete.
R
the on-board voltage may be insufficient.
ATTENTION ASSIST is deactivated.
G
WARNING
The brake system continues to function normally, but without the
functions listed above. The front and rear wheels could therefore
lock if you brake hard, for example.
The steerability and braking characteristics may be severely affec-
ted. The braking distance in an emergency braking situation can
increase.
If ESP
®
is not operational, ESP
®
is unable to stabilize the vehicle.
There is a risk of an accident.
X
Carefully drive a suitable distance, making slight steering move-
ments at a speed above 12 mph (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
Visit a qualified specialist workshop.
Warning and indicator lamps in the instrument cluster
255
On-board computer and displays
Z
Problem
Possible causes/consequences and MM Solutions
!
The yellow ABS warning
lamp is lit while the
engine is running. A
warning tone also
sounds.
EBD is malfunctioning. Therefore, ABS, BAS, COLLISION PREVEN-
TION ASSIST PLUS, ESP
®
, the HOLD function and hill start assist
for example, are also not available.
ATTENTION ASSIST is deactivated.
G
WARNING
The brake system continues to function normally, but without the
functions listed above. The front and rear wheels could therefore
lock if you brake hard, for example.
The steerability and braking characteristics may be severely affec-
ted. The braking distance in an emergency braking situation can
increase.
If ESP
®
is not operational, ESP
®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X
Observe the additional display messages in the multifunction
display.
X
Drive on carefully.
X
Visit a qualified specialist workshop.
$ (USA only)
J (Canada only)
֌!
The red brake warning
lamp, the yellow ESP
®
and ESP
®
OFF warning
lamps and the yellow
ABS warning lamp are
lit while the engine is
running.
ABS and ESP
®
are malfunctioning. Therefore, BAS, COLLISION
PREVENTION ASSIST PLUS, EBD, the HOLD function and hill start
assist for example, are also not available.
ATTENTION ASSIST is deactivated.
G
WARNING
The brake system continues to function normally, but without the
functions listed above. The front and rear wheels could therefore
lock if you brake hard, for example.
The steerability and braking characteristics may be severely affec-
ted. The braking distance in an emergency braking situation can
increase.
If ESP
®
is not operational, ESP
®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X
Observe the additional display messages in the multifunction
display.
X
Drive on carefully.
X
Visit a qualified specialist workshop.
256
Warning and indicator lamps in the instrument cluster
On-board computer and displays
Problem
Possible causes/consequences and MM Solutions
÷
The yellow ESP
®
warn-
ing lamp flashes while
the vehicle is in motion.
ESP
®
or traction control has intervened because there is a risk of
skidding or at least one wheel has started to spin.
Cruise control or DISTRONIC PLUS is deactivated.
X
When pulling away, only depress the accelerator pedal as far as
necessary.
X
Ease off the accelerator pedal while the vehicle is in motion.
X
Adapt your driving style to suit the road and weather conditions.
X
Do not deactivate ESP
®
.
For exceptions, see: (Y page 69).
å
The yellow ESP
®
OFF
warning lamp is lit while
the engine is running.
ESP
®
is deactivated. ESP
®
will not stabilize the vehicle if it starts to
skid or if a wheel starts to spin.
G
WARNING
If ESP
®
is switched off, ESP
®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X
Reactivate ESP
®
.
For exceptions, see: (Y page 69).
X
Adapt your driving style to suit the road and weather conditions.
If ESP
®
cannot be activated:
X
Have ESP
®
checked at a qualified specialist workshop.
M
AMG vehicles only:
The yellow SPORT han-
dling mode warning
lamp is lit while the
engine is running.
SPORT handling mode is activated.
G
WARNING
When SPORT handling mode is switched on, ESP
®
is unable to
stabilize the vehicle.
There is an increased risk of skidding and an accident.
X
Only switch on SPORT handling mode in certain situations
(Y page 70).
Warning and indicator lamps in the instrument cluster
257
On-board computer and displays
Z
Problem
Possible causes/consequences and MM Solutions
֌
The yellow ESP
®
and
ESP
®
OFF warning
lamps are lit while the
engine is running.
ESP
®
, BAS, COLLISION PREVENTION ASSIST PLUS, the HOLD
function and hill start assist are not available due to a malfunction.
ATTENTION ASSIST is deactivated.
G
WARNING
The brake system continues to function normally, but without the
functions listed above.
The braking distance in an emergency braking situation can thus
increase.
If ESP
®
is not operational, ESP
®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X
Observe the additional display messages in the multifunction
display.
X
Drive on carefully.
X
Visit a qualified specialist workshop.
֌
The yellow ESP
®
and
ESP
®
OFF warning
lamps are lit while the
engine is running.
ESP
®
, BAS, the HOLD function and hill start assist are temporarily
unavailable.
COLLISION PREVENTION ASSIST PLUS may also have failed.
ATTENTION ASSIST is deactivated.
Self-diagnosis is not yet complete.
G
WARNING
The brake system continues to function normally, but without the
functions listed above.
The braking distance in an emergency braking situation can thus
increase.
If ESP
®
is not operational, ESP
®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X
Carefully drive a suitable distance, making slight steering move-
ments at a speed above 12 mph (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
Visit a qualified specialist workshop.
258
Warning and indicator lamps in the instrument cluster
On-board computer and displays
Problem
Possible causes/consequences and MM Solutions
F (USA only)
! (Canada only)
The red indicator lamp
for the electric parking
brake flashes or lights
up and/or the yellow
warning lamp for the
electric parking brake
lights up.
X
Observe the additional display messages in the multifunction
display.
6
The red restraint sys-
tem warning lamp is lit
while the engine is run-
ning.
The restraint system is faulty.
G
WARNING
The air bags or Emergency Tensioning Devices may either be trig-
gered unintentionally or, in the event of an accident, may not be
triggered.
There is an increased risk of injury.
X
Observe the additional display messages in the multifunction
display.
X
Drive on carefully.
X
Have the restraint system checked at a qualified specialist
workshop immediately.
For further information about the restraint system, see
(Y page 42).
Warning and indicator lamps in the instrument cluster
259
On-board computer and displays
Z
Engine
Problem
Possible causes/consequences and MM Solutions
;
The yellow Check
Engine warning lamp
lights up while the
engine is running.
There may be a malfunction, for example:
R
in the engine management
R
in the fuel injection system
R
in the exhaust system
R
in the ignition system
R
in the fuel system
The emission limit values may be exceeded and the engine may be
in emergency mode.
X
Have the vehicle checked as soon as possible at a qualified
specialist workshop.
i
In some states, you must immediately visit a qualified special-
ist workshop as soon as the yellow Check Engine warning lamp
lights up. This depends on the locally applicable legal require-
ments. If in doubt, check whether such legal regulations apply in
the state in which you are currently driving.
æ
The yellow reserve fuel
warning lamp lights up
while the engine is run-
ning.
The fuel level has dropped into the reserve range.
X
Refuel at the nearest gas station.
æ
The yellow reserve fuel
warning lamp flashes
while the engine is run-
ning.
The fuel system pressure is too low. The fuel filler cap is not closed
correctly or the fuel system is leaking.
X
Check that the fuel filler cap is correctly closed.
X
If the fuel filler cap is not correctly closed: close the fuel filler
cap.
X
If the fuel filler cap is closed: visit a qualified specialist work-
shop.
?
The red coolant warn-
ing lamp lights up while
the engine is running
and the coolant tem-
perature gauge is at the
start of the scale.
The temperature sensor for the coolant temperature gage is defec-
tive.
The coolant temperature is no longer being monitored. There is a
risk of engine damage if the coolant temperature is too high.
X
Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions. Do not continue
driving under any circumstances.
X
Secure the vehicle against rolling away (Y page 159).
X
Consult a qualified specialist workshop.
260
Warning and indicator lamps in the instrument cluster
On-board computer and displays
Problem
Possible causes/consequences and MM Solutions
?
The red coolant warn-
ing lamp comes on
while the engine is run-
ning.
The coolant level is too low.
If the coolant level is correct, the airflow to the engine radiator may
be blocked or the electric engine radiator fan may be malfunc-
tioning.
The coolant is too hot and the engine is no longer being cooled
sufficiently.
X
Observe the additional display messages in the multifunction
display.
X
Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X
Secure the vehicle against rolling away (Y page 159).
X
Leave the vehicle and keep a safe distance from the vehicle until
the engine has cooled down.
X
Check the coolant level and add coolant (Y page 295). Observe
the warning notes.
X
If you need to add coolant more often than usual, have the
engine coolant system checked.
X
Make sure that the air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice.
X
Do not start the engine again until the coolant temperature is
below 248 ‡(120 †). Otherwise, the engine could be damaged.
X
Drive to the nearest qualified specialist workshop.
X
Avoid subjecting the engine to heavy loads, e.g. driving in moun-
tainous terrain, and stop-and-go traffic.
?
The red coolant warn-
ing lamp comes on
while the engine is run-
ning. A warning tone
also sounds.
The coolant temperature has exceeded 248 ‡ (120 †). The air-
flow to the engine radiator may be blocked or the coolant level may
be too low.
G
WARNING
The engine is not being cooled sufficiently and may be damaged.
Do not drive when your engine is overheated. This can cause some
fluids which may have leaked into the engine compartment to
catch fire.
Steam from the overheated engine can also cause serious burns
which can occur just by opening the hood.
There is a risk of injury.
X
Observe the additional display messages in the multifunction
display.
X
Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X
Secure the vehicle against rolling away (Y page 159).
Warning and indicator lamps in the instrument cluster
261
On-board computer and displays
Z
Problem
Possible causes/consequences and MM Solutions
X
Leave the vehicle and keep a safe distance from the vehicle until
the engine has cooled down.
X
Check the coolant level and add coolant (Y page 295). Observe
the warning notes.
X
If you need to add coolant more often than usual, have the
engine coolant system checked.
X
Make sure that the air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice.
X
At coolant temperatures below 248 ‡ (120 †), drive to the
nearest qualified specialist workshop.
X
Avoid subjecting the engine to heavy loads, e.g. driving in moun-
tainous terrain, and stop-and-go traffic.
Driving systems
Problem
Possible causes/consequences and MM Solutions
·
The red distance warn-
ing lamp lights up while
the vehicle is in motion.
A warning tone also
sounds.
You are approaching a vehicle or a stationary obstacle in your line
of travel at too high a speed.
X
Be prepared to brake immediately.
X
Pay careful attention to the traffic situation. You may have to
brake or take evasive action.
For further information about COLLISION PREVENTION ASSIST
PLUS (Y page 66).
262
Warning and indicator lamps in the instrument cluster
On-board computer and displays
Tires
Problem
Possible causes/consequences and MM Solutions
h
The yellow tire pressure
monitor warning lamp
(pressure loss/
malfunction) is lit.
The tire pressure monitor has detected a loss of pressure in at
least one of the tires.
G
WARNING
With tire pressures which are too low, there is a risk of the fol-
lowing hazards:
R
they may burst, especially as the load and vehicle speed
increase.
R
they may wear excessively and/or unevenly, which may greatly
impair tire 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
maneuvers. Pay attention to the traffic conditions as you do so.
X
Secure the vehicle against rolling away (Y page 159).
X
Observe the additional display messages in the multifunction
display.
X
Check the tires and, if necessary, follow the instructions for a
flat tire (Y page 306).
X
Check the tire pressure (Y page 332).
X
If necessary, correct the tire pressure.
h
The yellow tire pressure
monitor warning lamp
(pressure loss/
malfunction) flashes for
approximately one
minute and then
remains lit.
The tire pressure monitor is faulty.
G
WARNING
The system is possibly unable to recognize or register low tire
pressure.
There is a risk of an accident.
X
Observe the additional display messages in the multifunction
display.
X
Visit a qualified specialist workshop.
Warning and indicator lamps in the instrument cluster
263
On-board computer and displays
Z
264

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