2007-2013 Mercedes C Class 4 Door 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 C Class 4 Door Second Generation (2007-2013)

Useful information ............................ 198
Important safety notes .................... 198
Displays and operation .................... 198
Menus and submenus ...................... 201
Display messages ............................. 216
Warning and indicator lamps in the
instrument cluster ............................ 242
197
On-board computer and displays
Useful information
i
This Operator's Manual describes all
models and all standard and optional
equipment 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
specialist workshops: (Y page 25).
Important safety notes
G
WARNING
If you operate information systems and
communication equipment integrated in the
vehicle 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
situationpermits.Ifyou are not sure that this
is possible, park the vehicle paying attention
to traffic conditions and operate the
equipment when the vehicle is stationary.
G
WARNING
If the instrument cluster has failed or
malfunctioned, 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
immediately.
You must observe the legal requirements for
the country in which you are currently driving
when operating the on-board computer.
The on-board computer only shows messages
or warnings from certain systems in the
multifunction display.You should therefore
make sure your vehicle is operating safely at
all times. Otherwise, a vehicle that is not
operating safely may cause an accident.
For an overview, see the instrument panel
illustration (Y page 31).
Displays and operation
Instrument cluster lighting
The lighting in the instrument cluster, in the
displays and the controls in the vehicle
interior can be adjusted using the brightness
control knob.
The brightness control knob is located on the
bottom left of the instrument cluster
(Y page 31).
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
overheated 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.
The coolant temperature gauge is in the
instrument cluster on the left-hand side.
198
Displays and operation
On-board computer and displays
Under normal operating conditions and with
the specified coolant level, the coolant
temperature may rise to 248 ‡ (120 †).
!
Adisplay message is shown if the coolant
temperature is too high.
If the coolant temperature is over
248 ‡(120 †), do not continue driving. The
engine will otherwise be damaged.
Tachometer
The red band in the tachometer indicates the
engine's overrevving range.
!
Do not drive in the overrevving range, as
this could damage the engine.
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
conditions when temperatures are around
freezing point.
The outside temperature display is in the
multifunction display (Y page 200).
Changes in the outside temperature are
displayed after a shortdelay.
Speedometer with segments
The segments in the speedometer indicate
which speed range is available.
R
Cruise control activated (Y page 165):
The segments light up from the stored
speed to the maximum speed.
R
DISTRONIC PLUS activated (Y page 167):
One or two segments in the set speed
range light up.
R
DISTRONIC PLUS detects avehicle in front:
The segments between the speed of the
vehicle in frontand the stored speed light
up.
Operating the on-board computer
Overview
The on-board computeris activated as soon
as you 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.
:
Multifunction display
;
Switches on the Voice Control System;
see the separate operating instructions
=
Right control panel
?
Left control panel
A
Back button
Displays and operation
199
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
Audio menu: selects a
stored station, an audio track or
a video scene
R
In the
Tel (telephone) menu:
switches to the phone book and
selects a name or telephone
number
9
:
Press and hold:
R
In the
Audio menu: selects the
previous/nextstation or selects
an audio track or a video scene
using rapid scrolling
R
In the
Tel
(Telephone) menu:
starts rapid scrolling of the
phone book if it is open
a
R
Confirms a selection/display
message
R
In the
Tel (Telephone) menu:
switches to the telephone book
and starts dialing the selected
number
R
In the
Audio menu: stops the
station search function at the
desired station
Right control panel
~
R
Rejects or ends a call
R
Exits phone book/redial
memory
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
operating instructions
R
Hides display messages/calls
up the last
Trip menu function
used
R
Exits the telephone book/redial
memory
%
Press and hold:
R
Calls up the standard display in
the
Trip menu
Multifunction display
Values and settings as well as display
messages are shown in the multifunction
display.
Example: multifunction display for automatic
transmission
:
Text field
;
Menu bar
=
Drive program
?
Time
200
Displays and operation
On-board computer and displays
A
Permanentdisplay: outside temperature
or speed (Y page 209)
B
Transmission position
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
system or COMAND, see the separate
operating instructions.
The following messages may appear in the
multifunction display:
XjY Parking Guidance (Y page 182)
CRUISE
Cruise control (Y page 165)
_
Adaptive Highbeam Assist
(Y page 114)
À
ATTENTION ASSIST(Ypage 185)
¤
ECO start/stop function
(Y page 145)
Ã
Lane Keeping Assist (Y page 188)or
Active Lane Keeping Assist
(Y page 193)
ë
HOLD function (Y page 176)
Ä
PRE-SAFE
®
Brake (Y page 69)
Menus and submenus
Menu overview
Operating the on-board computer
(Y page 199).
Depending on the equipment installed in the
vehicle, you can call up the following menus:
R
Trip menu (Y page 201)
R
Navi
menu (navigation instructions)
(Y page 203)
R
Audio menu (Y page 204)
R
Tel menu (telephone) (Y page 205)
R
DriveAssist
menu (assistance)
(Y page 206)
R
Serv menu (Y page 208)
R
Sett. menu (settings) (Y page 208)
R
AMG
menu in AMG vehicles (Y page 212)
The
Audio, Navi and Tel menus differslightly
in vehicles with an audio system and in
vehicles 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
Trip 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
steering wheel to select the
Trip
menu.
X
Press the 9 or : button to select
From Start or From Reset.
The values in the
From Start submenu are
calculated from the start of a journey,
Menus and submenus
201
On-board computer and displays
Z
whereas the values in the From Reset
submenu are calculated fromthe last time the
submenu was reset (Y page 202).
The
From Start
trip computer is
automatically reset if:
R
the ignition has been switched off for more
than four hours.
R
999 hours have been exceeded.
R
9999 miles have been exceeded.
The
From Reset trip computer is
automatically reset if the value exceeds
9,999 hours or 99,999 miles.
Displaying the range and current fuel
consumption
X
Press the = or ; button on the
steering wheel to select the
Trip menu.
X
Press the 9 or : button to select the
current fuel consumption and the
approximate range (except for AMG
vehicles).
The approximate range that can be covered
depends on the fuel level and your current
driving style. 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.
ECO display
Example: ECO display
X
Press the = or ; button on the
steering wheel to select the
Trip
menu.
X
Press 9 or : to select
ECO
DISPLAY.
If the ignition remains switched off for longer
than four hours, the ECO display will be
automatically reset.
Further information on the ECO display
(Y page 161).
Digital speedometer
:
Digital speedometer
X
Press the = or ; button on the
steering wheel to select the
Trip menu.
X
Press the 9 or : button to select the
digital speedometer.
Resetting values
Example: resetting the trip computer "From Start"
X
Press the = or ; button on the
steering wheel to select the
Trip 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
Yes and
press the a button to confirm.
202
Menus and submenus
On-board computer and displays
You can reset the values of the following
functions:
R
Trip odometer
R
"From Start" trip computer
R
"From Reset" trip computer
R
ECO display
Navigation system menu
Displaying navigation instructions
In the Navi menu, the multifunction display
shows navigation instructions.For more
information, see the separate operating
instructions.
X
Switch on the audio system with Becker
®
MAP PILOT or COMAND; see the separate
operating instructions.
X
Press the = or ; button on the
steering wheel to select the
Navi menu.
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
=
Change-of-direction symbol
When a change of direction is announced, you
will see symbol = for the change of direction
and distance graphic ;.The distance
indicator shortens towards the top of the
display as you approach the point of the
announced change of direction.
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
=
New lane during a change of direction
?
Uninterrupted lane
A
Lane recommendation
B
Change-of-direction symbol
On multilane roads, the system can display
lane recommendation A for the next change
of direction. During the change of direction,
additional lanes may be displayed.
Menus and submenus
203
On-board computer and displays
Z
Lane recommendations are only displayed if
the relevant data is available on the digital
map.
Other status indicators of the
navigation system
R
O:you have reached the destination or an
intermediate destination.
R
New Route... or Calculating Route:
calculating a new route
R
Off Map or Off Mapped Road:the vehicle
position is outside the area of the digital
map (off-map position).
R
No Route
:no route could be calculated to
the selected destination.
Audio menu
Selecting aradio station
i
SIRIUS XM satellite radio functions like a
normal radio.
For more information on satellite radio
operation, see the separate operating
instructions.
i
For information on switching waveband
and storing stations; see the separate
operating instructions.
X
Switch on the audio system or COMAND
and select Radio (see the separate
operating instructions).
X
Press the = or ; button on the
steering wheel to select the
Audio menu.
:
Waveband
;
Station frequency with memory position
X
To selectastoredstation: 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 stationlist is received:
X
To select astation using the station
search: press and briefly hold the 9
or : button.
Operating an audio player or audio
media
Audio data from various audiodevices or
media can be played, depending on the
equipment installed in the vehicle.
X
Switch on the audio system or COMAND
and select the audio player or medium, see
the separate operating instructions.
X
Press the = or ; button on the
steering wheel to select the
Audio menu.
Example: CD/DVD changer display
:
Current title
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 trackhas
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 name of the track.
The currenttrack does not appear in audio
AUX mode (Auxiliary audio mode: external
audio source connected).
204
Menus and submenus
On-board computer and displays
Video DVD operation
X
Switch on COMAND and select video DVD;
see the separate operating instructions.
X
Press the = or ; button on the
steering wheel to select the
Audio
menu.
Example:CD/DVD changerdisplay
:
Current scene
X
To select the next/previousscene:
briefly press the 9 or : button.
X
To select ascene from the scene list
(rapid scrolling): press and hold the
9 or : buttonuntil desired scene
has been reached.
Telephone menu
Introduction
G
WARNING
If you operate informationsystems and
communication equipment integrated in the
vehicle 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 equipmentwhen the traffic
situation permits. If you are not sure that this
is possible, park the vehicle paying attention
to traffic conditions and operate the
equipment 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 your mobile phone and audio
system or COMAND, see the separate
operating instructions.
X
Establish a Bluetooth
®
connection to the
audio system or COMAND; see the
separate operating instructions.
X
Press the = or ; button on the
steering wheel to select the
Tel menu.
You will see one of the following display
messages in the multifunction display:
R
Phone READY or the name of the network
provider: the mobile phone has found a
network and is ready to receive.
R
Phone No Service: there is no network
available or the mobile phone is searching
for a network.
Accepting acall
If someone calls you whenyou are in the
Tel menu, a display message appears in the
multifunction display, for example:
X
Press the 6 button on the steering
wheel to accept an incoming call.
You can accept a call even if you are not in
the
Tel
menu.
Rejecting or ending acall
X
Press the ~ button on the steering
wheel.
You can end or reject a call even if you are not
in the
Tel menu.
Menus and submenus
205
On-board computer and displays
Z
Dialing a number from the phone book
X
Press the = or ; button on the
steering wheel to selectthe
Tel
menu.
X
Press the 9, : or a button to
switch to the phone book.
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
dialing.
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
steering wheel to select the
Tel 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
dialing.
or
X
If you do not want to make a call: press
the ~ or % button.
Assistance menu
Introduction
In the DriveAssist menu, you have the
following options:
R
Showing the distance display
(Y page 206)
R
Activating/deactivating
ESP
®
(Y page 207)
R
Activating/deactivating PRE-SAFE
®
Brake
(Y page 207)
R
Activating/deactivating ATTENTION
ASSIST (Y page 207)
R
Activating/deactivating Blind Spot Assist
or Active Blind Spot Assist (Y page 208)
R
Activating/deactivating Lane Keeping
Assist or Active Lane Keeping Assist
(Y page 208)
Showing the distance display
This function is only available with
DISTRONIC PLUS.
X
Press the = or ; button on the
steering wheel to select the
DriveAssist
menu.
X
Press the 9 or : button to select
Distance Display.
X
Press the a button.
The DISTRONIC PLUS distance display
(Y page 173) appears in the multifunction
display.
If the
Sensors Deactivated message
appears, the radar sensor system is
deactivated.
X
Switch on the radar sensor system
(Y page 211).
206
Menus and submenus
On-board computer and displays
Deactivating/activating ESP
®
G
WARNING
If you deactivate ESP
®
, ESP
®
no longer
stabilizes the vehicle. There is an increased
risk of skidding and an accident.
Only deactivate ESP
®
in the situations
described in the following.
Activating/deactivatingESP
®
on AMG
vehicles (Y page 68).
For further information about ESP
®
, see
(Y page 66).
X
Start the engine.
X
Press the = or ; button on the
steering wheel to select the
DriveAssist
menu.
X
Press the 9 or : button to select
ESP.
X
Press the a button.
X
To deactivate: press a again.
The å warning lamp in the instrument
cluster lights up.
X
To activate: press a again.
The å warning lamp in the instrument
cluster goes out.
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
warning lamp are litcontinuously, ESP
®
is not
available due to a malfunction.
It may be best to deactivate ESP
®
in the
following situations:
R
when using snow chains
R
in deep snow
R
on sand or gravel
Observe the information on warning lamps
(Y page 246).
Observe the information on display messages
(Y page 217).
Activating/deactivating PRE-SAFE
®
Brake
PRE-SAFE
®
Brake is only available in vehicles
with DISTRONIC PLUS.
X
Press the = or ; button on the
steering wheel to select the
DriveAssist
menu.
X
Press the 9 or : button to select
PRE-SAFE Brake.
X
Press the a button.
The current selection is displayed.
X
To activate/deactivate: press the a
button again.
When PRE-SAFE
®
Brake (Y page 69) is
activated, the multifunction display shows
the Ä symbol as long as the HOLD
function is not activated (Y page 176).
Vehicles with Parking Guidance: if
PARKTRONIC is activated and you are driving
at a speed below 22 mph (35 km/h), the j
Parking Guidance symbol is shown instead of
the Ä symbol.
If the
PRE-SAFE Brake: Sensors
Deactivated message appears, the radar
sensor system is deactivated.
X
Switch on the radar sensor system
(Y page 211).
For more information on PRE-SAFE
®
Brake,
see (Y page 69).
Activating/deactivating ATTENTION
ASSIST
X
Press the = or ; button on the
steering wheel to select the
DriveAssist
menu.
X
Press the 9 or : button to select
Attention Assist.
X
Press the a button.
The current selection is displayed.
X
To activate/deactivate: press the a
button again.
Menus and submenus
207
On-board computer and displays
Z
When ATTENTION ASSIST(Ypage 185) is
activated, the À symbol appears in the
multifunction display when the ignition is on.
For further information about ATTENTION
ASSIST, see (Y page 185).
Activating/deactivating Blind Spot
Assist
X
Press the = or ; button on the
steering wheel to select the
DriveAssist
menu.
X
Press the 9 or : button to select
Blind Spot Assist.
X
Press the a button.
The currentselection is displayed.
X
To activate/deactivate: press the a
button again.
If the
Blind Spot Assist Sensors
Deactivated or Act. Blind Spot Asst.
Sensors Deactivated message appears,
the radar sensor system is deactivated.
X
Switch on the radar sensor system
(Y page 211).
For further information about Blind Spot
Assist, see (Y page 186).
For further information about Active Blind
Spot Assist, see (Y page 190).
Activating/deactivating Lane Keeping
Assist
X
Press the = or ; button on the
steering wheel to select the
DriveAssist
menu.
X
Press the 9 or : button to select
Lane Keep. Asst.
X
Press the a button.
The currentselection is displayed.
X
Press a to confirm.
X
Press the : or 9 button to set
Off,
Standard
or Adaptive.
X
Press the a button to save the setting.
When Lane Keeping Assist or Active Lane
Keeping Assist is activated, the à symbol
appears in the multifunction display when the
ignition is on.
For further information about Lane Keeping
Assist, see (Y page 188).
For further information about Active Lane
Keeping Assist, see (Y page 193).
Maintenance menu
In the Serv. menu, you have the following
options:
R
Calling up display messages
(Y page 216)
R
Restarting the tire pressure loss warning
system (Canada only) (Y page 317)
R
Checking the tire pressure electronically
(Y page 318)
R
Calling up the service due date
(Y page 282)
Settings menu
Introduction
In the Sett. menu, you have the following
options:
R
Changing the instrument cluster settings
(Y page 209)
R
Changing the light settings (Y page 209)
208
Menus and submenus
On-board computer and displays
R
Changing the vehicle settings
(Y page 211)
R
Changing the convenience settings
(Y page 211)
R
Restoring the factory settings
(Y page 212)
Instrumentcluster
Selecting the unit of measurement for
distance
The
Display Unit Speed-/Odometer:
function allows you to choose whether
certain displays appear in kilometers or miles
in the multifunction display.
You can determine whether the multifunction
display shows some messages in miles or
kilometers.
X
Press the = or ; button on the
steering wheel to selectthe
Sett. menu.
X
Press the : or 9 button to select the
Instr. Cluster submenu.
X
Press a to confirm.
X
Press the : or 9 button to select the
Display Unit Speed-/Odometer:
function.
You will see the selected setting:
km or
miles
.
X
Press the a button to save the setting.
The selected unit of measurement for
distance applies to:
R
the digital speedometer in the
Trip
menu
R
the odometer and the trip odometer
R
the trip computer
R
current consumption and the range
R
the navigation instructions in the
Navi
menu
R
cruise control
R
DISTRONIC PLUS
R
ASSYST PLUS service interval display
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
steering wheel to select the
Sett. menu.
X
Press the : or 9 button to select the
Instr. Cluster submenu.
X
Press a to confirm.
X
Press the : or 9 button to select the
Permanent Display: function.
You will see the selected setting
Outside
Temperature or Speedometer [km/h]
(USA)/Speedometer [mph] (Canada).
X
Press the a button to save the setting.
i
The speed is shown in km/h (USA)/mph
(Canada).
Lights
Switching the daytime running lamps on/
off
Daytime running lamps are required by law
(Canada only). You cannot set the "daytime
running lamps" function via the on-board
computer.
X
Press the = or ; button on the
steering wheel to select the
Sett.
menu.
X
Press the : or 9 button to select the
Lights submenu.
X
Press a to confirm.
X
Press the : or 9 button to select the
Day Lights function.
If the
Day Lights function has been
switched on, the cone of light and the
W symbol in the multifunction display
are shown in red.
X
Press the a button to save the setting.
Further information on daytime running
lamps (Y page 111).
Menus and submenus
209
On-board computer and displays
Z
Switching Adaptive Highbeam Assist on/
off
X
Press the = or ; button on the
steering wheel to select the
Sett. menu.
X
Press the : or 9 button to select the
Lights submenu.
X
Press a to confirm.
X
Press the : or 9 button to select the
Adapt. Highbeam function.
If the
Adapt. Highbeam function has been
switched on, the cone of light and the
_ symbol in the upper multifunction
display are shown in red.
X
Press the a button to save the setting.
For further information about Adaptive
Highbeam Assist, see (Y page 114).
Activating/deactivating surround
lighting and exterior lighting delayed
switch-off
X
Press the = or ; button on the
steering wheel to select the
Sett.
menu.
X
Press the : or 9 button to select the
Lights submenu.
X
Press a to confirm.
X
Press the : or 9 button to select the
Surround Lighting
function.
When the
Surround Lighting
function is
activated, the light cone and the area
around the vehicle are displayed in red in
the multifunction display.
X
Press the a button to save the setting.
Deactivating delayed switch-offofthe
exterior lighting temporarily:
X
Before leaving the vehicle, turn the
SmartKey to position 0 in the ignition lock.
X
Turn the SmartKey to position 2 in the
ignition 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.
If you have activated the
Surround
Lighting 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
automatic 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 trunk lid,
the exterior lighting goes off after
5seconds.
i Depending on your vehicle's equipment,
when the surround lighting and delayed
switch-off exterior lighting are on, the
following 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
lighting delayed switch-off
If you activate the
Light. 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
steering wheel to select the
Sett. menu.
X
Press the : or 9 button to select the
Lights submenu.
X
Press a to confirm.
X
Press the : or 9 button to select the
Light. Delay
function.
When the
Light. Delay
function is
activated, the vehicle interior is displayed
in red in the multifunction display.
X
Press the a button to save the setting.
210
Menus and submenus
On-board computer and displays
Vehicle
Activating/deactivating the automatic
doorlocking mechanism
X
Press the = or ; button on the
steering wheel to selectthe
Sett.
menu.
X
Press the : or 9 button to select the
Vehicle submenu.
X
Press a to confirm.
X
Press the : or 9 button to select the
Auto. Door Locks function.
When the
Auto. Door Locks function is
activated, the vehicle doors are displayed
in red in the multifunction display.
X
Press the a button to save the setting.
If you activate the
Auto. Door Locks
function, the vehicle is centrally locked above
a speed of around 9 mph (15 km/h).
For further information on the automatic
locking feature, see (Y page 81).
Activating/deactivating the acoustic
locking verification signal
If you switch on the
Acoustic Lock function,
an acoustic signal sounds when you lock the
vehicle.
X
Press the = or ; button on the
steering wheel to select the
Sett. menu.
X
Press the : or 9 button to select the
Vehicle submenu.
X
Press a to confirm.
X
Press the : or 9 button to select the
Acoustic Lock function.
If the
Acoustic Lock function is activated,
the & symbol in the multifunction
display lights up red.
X
Press the a button to save the setting.
Activating/deactivating the radar sensor
system
X
Press the = or ; button on the
steering wheel to select the
Sett. menu.
X
Press the : or 9 button to select the
Vehicle submenu.
X
Press a to confirm.
X
Press the 9 or : button to select
Radar Sensor (See Oper. Manual):
.
You will see the selected setting:
Enabled
or Disabled.
X
Press the a button to save the setting.
The following systems are switched off when
the radar sensor system is deactivated:
R
DISTRONIC PLUS (Y page 167)
R
BAS PLUS (Y page 65)
R
PRE-SAFE
®
Brake (Y page 69)
R
Blind Spot Assist (Y page 186) or Active
Blind Spot Assist (Y page 190)
Convenience
Activating/deactivating the EASY-
ENTRY/EXIT feature
G
WARNING
When the EASY-ENTRY/EXIT feature adjusts
the steering wheel and the driver's seat, you
and other vehicle occupants –particularly
children–could become trapped. There is a
risk of injury.
While the EASY-ENTRY/EXIT feature is
making adjustments, make sure that no one
has any body parts in the sweep of the seat
and the steering wheel.
If somebody becomes trapped:
R
press one of the memory function position
buttons, or
R
move the switch for steering wheel
adjustmentinthe opposite direction to that
in which the steering wheel is moving.
The adjustment process is stopped.
X
Press the = or ; button on the
steering wheel to select the
Sett.
menu.
X
Press the : or 9 button to select the
Convenience submenu.
X
Press a to confirm.
Menus and submenus
211
On-board computer and displays
Z
X
Press the : or 9 button to select the
Easy Entry/Exit function.
If the
Easy Entry/Exit function is
activated, the vehicle steering wheel is
displayed in red in the multifunction
display.
X
Press the a button to save the setting.
Further information on the EASY-ENTRY/EXIT
feature (Y page 102).
Switching the belt adjustment on/off
X
Press the = or ; button on the
steering wheel to select the
Sett. menu.
X
Press the : or 9 button to select the
Convenience submenu.
X
Press a to confirm.
X
Press the : or 9 button to select the
Belt Adjustment
function.
When the
Belt Adjustment
function is
activated, the vehicle seat belt is displayed
in red in the multifunction display.
X
Press the a button to save the setting.
For further information on belt adjustment,
see (Y page 56).
Switching the fold-in mirrors when
locking feature on/off
This function is only available on vehicles with
the memory function (Y page 106).
This function is only available in Canada.
When you activate the
Auto. Mirror
Folding 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.
X
Press the = or ; button on the
steering wheel to select the
Sett. menu.
X
Press the : or 9 button to select the
Convenience submenu.
X
Press a to confirm.
X
Press the : or 9 button to select the
Auto. Mirror Folding
function.
If the Auto. Mirror Folding
function is
activated, the vehicle's exterior mirror is
displayed in red in the multifunction
display.
X
Press the a button to save the setting.
If you have switched the
Auto. Mirror
Folding function on and you fold the exterior
mirrors in using the button on the door
(Y page 104), they will not fold out
automatically. The exterior mirrors can then
only be folded out using the button on the
door.
Restoring the factory settings
X
Press the = or ; button on the
steering wheel to select the
Sett. menu.
X
Press the : or 9 button to select the
Factory Setting submenu.
X
Press a to confirm.
The
Reset All Settings? message
appears.
X
Press the : or 9 button to select
No
or Yes.
X
Press the a button to confirm the
selection.
If you have selected
Yes, the multifunction
display shows a confirmation message.
For safety reasons, the
Day Lights
function
in the
Lights submenu is only reset if the
vehicle is stationary.
AMG menu in AMG vehicles
AMG displays
X
Press = or ; on the steering wheel
to select the
AMG
menu.
:
Digital speedometer
;
Gear indicator
212
Menus and submenus
On-board computer and displays
=
Upshift indicator
?
Engine oil temperature
A
Coolant temperature
Upshift indicator
UP = indicates that the
engine has reached the overrevving range
when in the manual gearshift program.
Upshift indicator
UP
= fades out other
messages until you have shifted up.
If the engine oil temperature is below 176 ‡
(80 †) the oil temperature is shown in blue.
Avoid driving at full engine output during this
time.
SETUP
SETUP shows the drive program, the ESP
®
(Electronic Stability Program) mode and the
SPORT handling mode.
X
Press = or ; on the steering wheel
to select the
AMG menu.
X
Press the 9 button repeatedly until
SETUP is displayed.
:
Drive program (
C/SS+/M)
;
ESP
®
mode (
ON
/OFF) or SPORT handling
mode (
SPORT
)
RACETIMER
Displaying and starting RACETIMER
The RACETIMER is only intended for use on a
closed race circuit. Do not use the function
on public roads.
You can use the RACETIMER to store lap
times.
X
Press = or ; on the steering wheel
to select the
AMG menu.
X
Press the 9 button repeatedly until the
RACETIMER is shown.
i
If the RACETIMER is selected, the =
and ; buttons cannot be used to call up
the menu bar.
:
Lap
;
RACETIMER
You can start the RACETIMER when the
engine is running or if the SmartKey is in
position 2 in the ignition lock.
X
To start: press the a button to start the
RACETIMER.
Displaying the intermediate time
X
Press the = or ; button to select
Interm. Time.
X
Press a to confirm.
The intermediate time is displayed for five
seconds.
Starting a new lap
X
Press a to confirm
New Lap.
Menus and submenus
213
On-board computer and displays
Z
:
RACETIMER
;
Fastest lap time (bestlap)
=
Lap
i
It is possible to store a maximum of
sixteen laps. The 16th lap can only be
completed with
Finish Lap
.
Stopping the RACETIMER
X
Press the % button on the steering
wheel.
X
Press a to confirm
Yes.
The RACETIMER interrupts timing when you
stop the vehicle and turn the SmartKey to
position 1 in the ignition lock. If you turn the
key to position 2 or 3 and then press a to
confirm
Start
, timing is continued.
Resetting the current lap
X
Stop the RACETIMER.
X
Press the = or ; buttonto select
Reset 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
Reset
.
Reset Race Timer? appears in the
multifunction display.
X
Press the : button to select
Yes and
press the a button to confirm.
All laps are deleted.
Overall statistics
This function is shown if you have stored at
least one lap and stopped the RACETIMER.
X
Press = or ; on the steering wheel
to select the
AMG menu.
X
Press the 9 button repeatedly until the
overall evaluation is shown.
:
RACETIMER overall evaluation
;
Total time driven
=
Average speed
?
Distance covered
A
Maximum speed
214
Menus and submenus
On-board computer and displays
Lap statistics
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 selectthe
AMG
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
symbol :.
:
Lap
;
Lap time
=
Average lap speed
?
Lap length
A
Top speed during lap
X
Press the 9 or : button to select a
different lap evaluation.
Menus and submenus
215
On-board computer and displays
Z
Display messages
General notes
Display messages appear in themultifunction display.
Display messages with graphic displays may be shown in simplified forminthe Operator's
Manual and may therefore differ from 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 176) and parking (Y page 158).
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
display messages cannot be hidden.
The multifunction display shows these messages continuously until the causes for the
messages have been remedied.
Message memory
The message memory allows you to call up previous display messages.
X
Press the = or ; button on the steering wheel to select the
Serv. menu.
If there are display messages, the multifunction displayshows
2 messages, for example.
X
Press the 9 or : button to select the entry, e.g.
2 messages.
X
Press a to confirm.
X
Press the 9 or : button to scroll through the display messages.
216
Display messages
On-board computer and displays
Safety systems
Display messages Possible causes/consequences and M Solutions
!÷
Currently
Unavailable See
Operator's Manual
ABS (Anti-lock Braking System), ESP
®
(Electronic Stability
Program), BAS (Brake Assist), PRE-SAFE
®
,the HOLD function and
hill start assist are temporarily unavailable.
BAS PLUS and PRE-SAFE
®
Brake 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
affected. 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 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 See
Operator's Manual
ESP
®
,BAS, PRE-SAFE
®
, the HOLD functionand hill start assist are
unavailable due to a malfunction.
BAS PLUS and PRE-SAFE
®
Brake may also have failed.
In addition, the ÷ and å warning lamps light up in the
instrument cluster.
The self-diagnosis functionmight not be complete, for example.
ATTENTION ASSIST is deactivated.
G
WARNING
The brake system continues to function normally, but without the
functions listed above.
Display messages
217
On-board computer and displays
Z
Display messages Possible causes/consequences and M Solutions
The braking distance in an emergency braking situation can thus
increase.
If ESP
®
is notoperational, ESP
®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X
Carefully drive 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.
T!
÷
Inoperative See
Operator's Manual
EBD (electronic brake force distribution), ABS, ESP
®
, BAS, PRE-
SAFE
®
, the HOLD function and hill start assist are unavailable due
to a malfunction.
BAS PLUS and PRE-SAFE
®
Brake may also have failed.
In addition, the ÷, å and ! warning lamps light up in
the instrument cluster and a warning tone sounds.
G
WARNING
The brake system continues to function normally, but without the
functions listed above. The frontand rearwheels could therefore
lock if you brake hard, for example.
The steerability and braking characteristics may be severely
affected. 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)J(Canada
only)
Release Parking
Brake
You are driving with the parking brake applied. Awarning tone also
sounds.
X
Release the parking brake.
218
Display messages
On-board computer and displays
Display messages Possible causes/consequences and M Solutions
$(USA
only)J(Canada
only)
Brake Immediately
A malfunction has occurred while the HOLD function or
DISTRONIC PLUS is active.
Atone may also sound at regular intervals. If you attempt to lock
the vehicle, the tone becomes louder.
You cannot start the engine.
X
Paying attention to the traffic situation, immediately depress the
brake pedal firmly and hold until the display message
disappears.
X
Use the folding wheel chock (Y page 335) from the vehicle tool
kit to secure the vehicle against rolling away.
You can restart the engine.
$(USA
only)J(Canada
only)
Check Brake Fluid
Level
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 158).
X
Consult a qualified specialist workshop.
X
Do not add brake fluid. This does not correct the malfunction.
#
Check Brake Pad
Wear
The brake pads/linings have reached their wear limit.
X
Visit a qualified specialist workshop.
G
mbrace Inoperative
One or more main features of the mbrace system are
malfunctioning.
X
Have the mbrace system checked immediately at a qualified
specialist workshop.
PRE-SAFE
Inoperative See
Operator's Manual
Important functions of PRE-SAFE
®
have failed. All other occupant
safety systems, e.g. air bags, remain available.
X
Visit a qualified specialist workshop immediately.
Display messages
219
On-board computer and displays
Z
Display messages Possible causes/consequences and M Solutions
PRE-SAFE
Functions
Currently Limited
See Operator's
Manual
PRE-SAFE
®
Brake is temporarily inoperative. Possible causes are:
R
function is impaired due to heavy rain or snow.
R
the sensors in the radiatorgrill and the bumper are dirty.
R
the radarsensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio
stations 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
message disappears.
PRE-SAFE
®
Brake 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 158).
X
Clean the sensors in the radiator grill and the bumper
(Y page 291).
X
Restart the engine.
X
AMG vehicles: reactivate ESP
®
(Y page 68).
PRE-SAFE
Functions Limited
See Operator's
Manual
PRE-SAFE
®
Brake is inoperative due to a malfunction. BAS PLUS
or the distance warning signal may also have failed.
X
Visit a qualified specialist workshop.
6
SRS Malfunction
Service Required
There is a malfunction in the SRS (Supplemental Restraint
System). The 6 warning lamp also lights up in the instrument
cluster.
G
WARNING
The air bags or Emergency Tensioning Devices may either be
triggered 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 SRS, see (Y page 41).
220
Display messages
On-board computer and displays
Display messages Possible causes/consequences and M Solutions
6
Front Left
Malfunction
Service Required
or Front Right
Malfunction
Service Required
SRS has malfunctioned at the front on the left or right. The 6
warning lamp also lights up in the instrumentcluster.
G
WARNING
The air bags or Emergency Tensioning Devices may either be
triggered 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
Malfunction
Service Required
or Rear Right
Malfunction
Service Required
G
WARNING
The air bags or Emergency Tensioning Devices may either be
triggered unintentionally or, in the event of an accident, may not
be triggered.
There is an increased risk of injury.
SRS has malfunctionedat the rear on the left or right. The 6
warning lamp also lights up in the instrument cluster.
X
Visitaqualified specialist workshop.
6
Rear Center
Malfunction
Service Required
G
WARNING
The air bags or Emergency Tensioning Devices may either be
triggered unintentionally or, in the event of an accident, may not
be triggered.
There is an increased risk of injury.
SRS has malfunctioned at the rear center. The 6 warning lamp
also lights up in the instrument cluster.
X
Visit a qualified specialist workshop.
6
Left Side Curtain
Airbag Malfunction
Service Required
or Right Side
Curtain Airbag
Malfunction
Service Required
There is a malfunction in the left-hand or right-hand window
curtain 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
triggered.
There is an increased risk of injury.
X
Visit a qualified specialist workshop.
Display messages
221
On-board computer and displays
Z
Display messages Possible causes/consequences and M Solutions
Front Passenger
Airbag Disabled
See Operator's
Manual
The front-passenger air bag is disabled 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
interpret the occupant's weight as lowerthan 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 158).
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 AIRBAG OFF indicator lamp in the
center console and the multifunction display and check the
following:
Seat unoccupied and ignition switched on:
R
the PASSENGER AIRBAG OFF indicator lamp must light up and
remain lit. If the indicator lamp is on, OCS has disabled the front-
passenger air bag (Y page 47).
R
the
Front Passenger Airbag Enabled See Operator's
Manual or Front Passenger Airbag Disabled See
Operator'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
system checks have been completed.
X
Make sure that the display messages do not appearinthe
multifunction display.
If these conditions are fulfilled, the front-passenger seat can be
occupied again. Whether the PASSENGER AIRBAG OFF indicator
lamp remains lit or goes out depends on how OCS classifies the
occupant.
If the conditions are not fulfilled, the system is not operating
correctly.
X
Visit a qualified specialist workshop immediately.
222
Display messages
On-board computer and displays
Display messages Possible causes/consequences and M Solutions
Forfurther information about the Occupant Classification System,
see (Y page 47).
Front Passenger
Airbag Enabled
See Operator'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
system's weightthreshold is located on the front-passenger
seat
or
R
the front-passenger seat is unoccupied
The system may detect objects or forces applying additional
weight on 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 158).
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 AIRBAG OFF indicator lamp in the
center console and the multifunction display and check the
following:
Seat unoccupied and ignition switched on:
R
the PASSENGER AIRBAG OFF indicator lamp must light up and
remain lit. If the indicator lamp is on, OCS (Occupant
Classification System) has disabled the front-passenger air bag
(Y page 47).
R
the
Front Passenger Airbag Enabled See Operator's
Manual or Front Passenger Airbag Disabled See
Operator's Manual display messages must not be shown in
the multifunction display.
Display messages
223
On-board computer and displays
Z
Display messages Possible causes/consequences and M Solutions
X
Wait foraperiod of at least 60 seconds until the necessary
system checks have been completed.
X
Make sure that the display messages do not appear in the
multifunction display.
If these conditions are fulfilled, the front-passenger seat can be
occupied again. Whether the PASSENGER AIRBAG OFF indicator
lamp remains lit or goes out depends on how OCS classifies the
occupant.
If the conditions are not fulfilled, the system is not operating
correctly.
X
Visit a qualified specialist workshop immediately.
For further information about the Occupant Classification System,
see (Y page 47).
Lights
i
Display messages about LEDs:
This display message will only appear if all LEDs have failed.
Display messages Possible causes/consequences and M Solutions
b
Check Left
Cornering Light or
Check Right
Cornering Light
The left or right-hand cornering light is defective.
X
Check whether you are permitted to replace the bulb yourself
(Y page 116).
or
X
Visit a qualified specialist workshop.
b
Check Left Low
Beam or Check
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 116).
or
X
Visit a qualified specialist workshop.
b
Check Rear Left
Turn Signal or
Check Rear Right
Turn 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 116).
or
X
Visit a qualified specialist workshop.
224
Display messages
On-board computer and displays
Display messages Possible causes/consequences and M Solutions
b
Check Front Left
Turn Signal or
Check Front Right
Turn Signal
The front left-hand or front right-hand turn signal is defective.
X
Checkwhether you are permitted to replace the bulb yourself
(Y page 116).
or
X
Visit a qualified specialist workshop.
b
Check Left Mirror
Turn Signal or
Check
Right Mirror
Turn Signal
The turn signal in the left-hand or right-hand exterior mirror is
defective.
X
Check whether you are permitted to replace the bulb yourself
(Y page 116).
or
X
Visit a qualified specialist workshop.
b
Check Center Brake
Lamp
The high-mounted brake lamp is faulty.
X
Check whether you are permitted to replace the bulb yourself
(Y page 116).
or
X
Visit a qualified specialist workshop.
b
Check Left Tail
and Brake Lamps or
Check Right Tail
and 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 116).
or
X
Visit a qualified specialist workshop.
b
Check Left High
BeamorCheck 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 116).
or
X
Visit a qualified specialist workshop.
b
Check Left Fog
LamporCheck Right
Fog Lamp
The left-hand or right-hand front fog lamp is defective.
X
Check whether you are permitted to replace the bulb yourself
(Y page 116).
or
X
Visit a qualified specialist workshop.
Display messages
225
On-board computer and displays
Z
Display messages Possible causes/consequences and M Solutions
b
Rear fog lamp
The rear fog lamp is defective.
X
Checkwhether you are permitted to replace the bulb yourself
(Y page 116).
or
X
Visit a qualified specialist workshop.
b
Check Front Left
Parking Lamp or
Check Front Right
Parking 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 116).
or
X
Visit a qualified specialist workshop.
b
Check Left Reverse
Lamp or Check
Right Reverse Lamp
The left or right-hand 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 Front Left
Sidemarker Lamp or
Check Front Right
Sidemarker Lamp
The left or right front side marker lamp is defective.
X
Check whether you are permitted to replace the bulb yourself
(Y page 116).
or
X
Visit a qualified specialist workshop.
b
Check Rear Left
Sidemarker Lamp or
Check Rear Right
Sidemarker Lamp
The rear left or right side marker lamp is defective.
X
Check whether you are permitted to replace the bulb yourself
(Y page 116).
or
X
Visit a qualified specialist workshop.
b
Check Left Daytime
Running Light or
Check Right
Daytime 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 116).
or
X
Visit a qualified specialist workshop.
b
Active Headlamps
Inoperative
The active light function is defective.
X
Visit a qualified specialist workshop.
226
Display messages
On-board computer and displays
Display messages Possible causes/consequences and M Solutions
b
Malfunction See
Operator's Manual
The exteriorlighting is defective.
X
Visit a qualified specialist workshop.
b
Malfunction See
Operator's Manual
The exterior lighting is defective.
X
Visit a qualified specialist workshop.
b
Auto Lamp Function
Inoperative
The light sensor is defective.
X
Visit a qualified specialist workshop.
b
Switch 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 Highbeam
Assist Inoperative
Adaptive Highbeam Assist is faulty.
X
Visit a qualified specialist workshop.
Adaptive Highbeam
Assist Currently
Unavailable See
Operator's Manual
Adaptive Highbeam 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.
X
Clean the windshield.
If the system detects that the camera is fully operational again,
the
Adaptive Highbeam Assist Now Available message is
displayed.
Adaptive Highbeam Assist is operational again.
Display messages
227
On-board computer and displays
Z
Engine
Display messages Possible causes/consequences and M Solutions
+
Check Coolant
Level See
Operator'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 286).
X
If coolant needs to be added more often than usual, have the
engine coolant system checked at a qualified specialist
workshop.
?
The fan motor is faulty.
X
At coolant temperatures below 248 ‡ (120 †) drive to the
nearestqualified specialist workshop.
X
Avoid subjecting the engineto heavy loads, e.g. driving in
mountainous terrain, and stop-and-go traffic.
?
Coolant Too Hot
Stop Vehicle Turn
Engine Off
The coolant is too hot.
Awarning tone also sounds.
G
WARNING
Do notdrive when yourengine is overheated. Thiscan cause some
fluids which may have leaked into the engine compartmentto
catch fire.
Steamfrom 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 158).
X
Waituntil the engine has cooled down.
X
Make sure thatthe 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 †).
Otherwise, 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 †).
228
Display messages
On-board computer and displays
Display messages Possible causes/consequences and M Solutions
#
The battery is notbeing charged.
Awarning tone also sounds.
Possible causes are:
R
a defective alternator
R
a torn poly-V-belt
R
a malfunction in the electronics
X
Pull overand 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 158).
X
Openthe hood.
X
Check whether the poly-V-belt is torn.
If the poly-V-belt is torn:
!
Do not continue driving. The engine could otherwise overheat.
X
Consult a qualified specialist workshop.
If the poly-V-belt is not damaged:
X
Visit a qualified specialist workshop.
4
Check Engine Oil
At Next Refueling
The engine oil level has dropped to the minimum level.
Awarning tone also sounds.
X
Checkthe oil level when next refueling, at the latest
(Y page 285).
X
If necessary, add engine oil (Y page 285).
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
.
Display messages
229
On-board computer and displays
Z
Display messages Possible causes/consequences and M Solutions
4
Check Engine Oil
Level (Add 1 quart)
AMG vehicles: the engine oil level is too low.
X
Checkthe oil level when next refueling, at the latest
(Y page 285).
X
If necessary, add engine oil (Y page 285).
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
.
8
Fuel Level Low
The fuel level has dropped into the reserve range.
X
Refuel at the nearest gas station.
C
There is only a very small amount of fuel in the fuel tank.
X
Refuel at the nearest gas station without fail.
8
Gas 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 M Solutions
À
Attention Assist:
Take a Break!
Based on certain criteria, ATTENTION ASSIST has detected fatigue
or alack of concentration on thepart of thedriver. 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 Assist
Inoperative
ATTENTION ASSIST is inoperative.
X
Visitaqualified specialist workshop.
230
Display messages
On-board computer and displays
Display messages Possible causes/consequences and M Solutions
ë
Off
The HOLD function is deactivated. The vehicle is skidding.
Awarning tone also sounds.
X
Reactivate the HOLD function later (Y page 176).
The HOLD function is deactivated. When the brakepedal is firmly
depressed, an activation condition is not fulfilled.
Awarning tone also sounds.
X
Check the activation conditions for the HOLD function
(Y page 176).
Radar Sensor
Deactivated See
Operator's Manual
The radar sensor system is deactivated.
X
Switch on the radar sensor system (Y page 211).
Lane Keeping
Assist Currently
Unavailable See
Operator's Manual
or Active Lane
Keeping Assist
Currently
Unavailable See
Operator's Manual
Lane Keeping Assist or Active 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 dirtorsnow.
Whenthe causes stated above no longer apply, the display
message disappears.
Lane Keeping Assist or Active 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 158).
X
Cleanthe windshield.
Lane Keeping
Assist
Inoperative or
Active Lane
Keeping Assist
Inoperative
Lane Keeping Assist or Active Lane Keeping Assist is defective.
X
Visit a qualified specialist workshop.
Display messages
231
On-board computer and displays
Z
Display messages Possible causes/consequences and M Solutions
Blind Spot Assist
Currently
Unavailable See
Operator's Manual
or Active Blind
Spot Assist
Currently
Unavailable See
Operator's Manual
Blind Spot Assist or Active 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 radarsensor 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
stations or other sources of electromagnetic radiation.
The yellow 9 indicator lamps also light up in the exterior
mirrors.
When the causes stated above no longer apply, the display
message disappears.
Blind Spot Assist or Active 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 158).
X
Clean the sensors (Y page 291).
X
Restart the engine.
Blind Spot Assist
Inoperative or
Active Blind Spot
Assist Inoperative
Blind Spot Assist or Active Blind Spot Assist is defective.
The yellow 9 indicator lamps also light up in the exterior
mirrors.
X
Visit a qualified specialist workshop.
Parking Guidance
Inoperative
Parking Guidance is malfunctioning (Y page 182).
X
Restart the engine.
If the display message continues to be displayed:
X
Visit a qualified specialist workshop.
232
Display messages
On-board computer and displays
Display messages Possible causes/consequences and M Solutions
Parking Guidance
Canceled
Parking Guidance is deactivated. Possible causes are:
R
The vehicle is skidding.
R
The sensors are dirty.
R
A malfunction has occurred.
Awarning tone also sounds.
X
Reactivate Parking Guidance later(Ypage 182).
If the parking space symbol does not appear in the multifunction
display at speeds below 19 mph (30 km/h):
X
Clean the sensors (Y page 291).
X
Restart the engine.
If the parking space symbol does not appear in the multifunction
display at speeds below 19 mph (30 km/h):
X
Visit a qualified specialist workshop.
Parking Guidance has been deactivated because you are no longer
following the recommended path.
X
Park again and, while doing so, observe the display messages
in the multifunction display.
Parking Guidance
Finished
The vehicle is parked. Awarning tone also sounds.
The display message disappears automatically.
DISTRONIC PLUS Off
DISTRONIC PLUShas been deactivated (Y page 167). If it was
deactivated automatically, a warning tone also sounds.
DISTRONIC PLUS Now
Available
DISTRONIC PLUSis operational againafter having been
temporarily unavailable.You can now reactivate DISTRONIC PLUS
(Y page 167).
Display messages
233
On-board computer and displays
Z
Display messages Possible causes/consequences and M Solutions
DISTRONIC PLUS
Currently
Unavailable See
Operator's Manual
DISTRONIC PLUSis temporarily inoperative. Possible causes are:
R
function is impaired due to heavy rain or snow.
R
the sensors in the radiator grill and the bumper are dirty.
R
the radar sensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio
stations or other sources of electromagnetic radiation.
R
the system is outside the operating temperature range.
R
the on-board voltage is too low.
Awarning tone also sounds.
When the causes stated above no longer apply, the display
message disappears.
DISTRONIC is operational again.
If the display message does notdisappear:
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 158).
X
Clean the sensors in the radiator grill and the bumper
(Y page 291).
X
Restartthe engine.
DISTRONIC PLUS
Inoperative
DISTRONIC PLUS is defective. BAS PLUS and PRE-SAFE
®
Brake
may also have failed.
Awarning tone also sounds.
X
Visitaqualified specialist workshop.
DISTRONIC PLUS
Passive
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 PLUS
--- mph
An activation condition for DISTRONIC PLUS is not fulfilled.
X
Check the activation conditions for DISTRONIC PLUS
(Y page 167).
234
Display messages
On-board computer and displays
Display messages Possible causes/consequences and M Solutions
Cruise Control
Inoperative
Cruise control is defective.
Awarning tone also sounds.
X
Visitaqualified specialist workshop.
Cruise Control
--- mph
Acondition for activating cruise control has not been fulfilled.
You have tried to store aspeed 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 165).
Display messages
235
On-board computer and displays
Z
Tires
Display messages Possible causes/consequences and M Solutions
Check
Tire Pressure Soon
Canada only:
The tire pressure loss warningsystem has detected a significant
loss in pressure.
Awarning tone also sounds.
G
WARNING
With tire pressures which are too low, there is a riskofthe
following 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 158).
X
Check the tires and, if necessary, follow the instructions for a
flat tire (Y page 297).
X
Check the tire pressures and, if necessary, correct the tire
pressure.
X
Restart the tire pressure loss warning system when the tire
pressure is correct (Y page 317).
Run Flat Indicator
Then Restart Run
Flat Indicator
Canada only:
The tire pressure loss warning system generated a display
message 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 317).
Run Flat Indicator
Inoperative
Canada only:
The tire pressure loss warning system is faulty.
X
Visit a qualified specialist workshop.
Correct
Tire 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 318).
X
If necessary, correct the tire pressure.
X
Restart the tire pressure monitor (Y page 320).
236
Display messages
On-board computer and displays
Display messages Possible causes/consequences and M Solutions
Check
Tires
The tire pressure in one or more tires has dropped significantly.
The wheel position is displayed in the multifunction display.
Awarning tone also sounds.
G
WARNING
With tire pressures which are too low, there is a riskofthe
following 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 158).
X
Check the tires and, if necessary, follow the instructions for a
flat tire (Y page 297).
X
Check the tire pressure (Y page 318).
X
If necessary, correct the tire pressure.
Warning
Tire Malfunction
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 158).
X
Check the tires and, if necessary, follow the instructions for a
flat tire (Y page 297).
Display messages
237
On-board computer and displays
Z
Display messages Possible causes/consequences and M Solutions
Tire Press. Monitor
Currently
Unavailable
Due to a source of radiointerference, 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.
TirePress.
Sensor(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
specialist workshop.
Tire Pressure
Monitor
Inoperative No
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. Monitor
Inoperative
The tire pressure monitor is faulty.
X
Visit a qualified specialist workshop.
Vehicle
Display messages Possible causes/consequences and M Solutions
Shift to 'P' or 'N'
to Start Engine
You have attempted to start the engine with the transmission in
position R or D.
X
Shift the transmission to position P or N.
P
Shift to P
You have attempted to stop the engine with the Start/Stop button
while the transmission was not in position P.
X
Shift the transmission to position P.
238
Display messages
On-board computer and displays
Display messages Possible causes/consequences and M Solutions
While the HOLD function or DISTRONIC PLUSis active, you have:
R
opened the driver's door and released the seat belt or
R
switched off the engine or
R
opened the hood
Atone may also sound at regular intervals. If you attempt to lock
the vehicle, the tone becomes louder.
You cannot start the engine.
X
Shift the transmission to position P.
You can restart the engine.
N
The trunk lid is open.
X
Close the trunk lid.
M
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
Secure the vehicle against rolling away (Y page 158).
X
Close the hood.
C
At least one door is open.
X
Close all the doors.
_
Rear Left Backrest
Not Latched or
Rear Right
Backrest Not
Latched
The backrest in the rear is not engaged on the left-hand and/or
right-hand side.
X
Push the backrest back until it engages.
Display messages
239
On-board computer and displays
Z
Display messages Possible causes/consequences and M Solutions
Ð
Power Steering
Malfunction See
Operator's Manual
The powersteering is malfunctioning.
Awarning tone also sounds.
G
WARNING
You will need to use more force to steer.
There is a riskofanaccident.
X
Check whetheryou 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.
Phone No Service
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 Fluid
The washer fluid level in the washer fluid reservoir has dropped
below the minimum.
X
Add washer fluid (Y page 287).
SmartKey
Display messages Possible causes/consequences and M Solutions
Â
Key Does Not
Belong to Vehicle
You have put the wrong SmartKey in the ignition lock.
X
Use the correct SmartKey.
Â
Take
Your Key from
Ignition
The SmartKey is in the ignition lock.
X
Remove the SmartKey.
Â
Obtain a New Key
The SmartKey needs to be replaced.
X
Visit a qualified specialist workshop.
Â
Replace
Key Battery
The batteries of the KEYLESS-GO key are discharged.
X
Change the batteries (Y page 77).
240
Display messages
On-board computer and displays
Display messages Possible causes/consequences and M Solutions
Â
Don't Forget Your
Key
The display message is shown foramaximum of 60 seconds and
is only a reminder.
You have opened the driver's door with the engine switched off.
The KEYLESS-GO key is not in the ignition lock.
X
Remember to take the KEYLESS-GO key with you when you
leave the vehicle.
Â
Key Not Detected
(red display message)
The KEYLESS-GO key is not in the vehicle.
Awarning tone also sounds.
If the engine is switched off, you can no longer lockthe vehicle
centrally or start the engine.
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 158)
(Y page 158).
X
Locate the KEYLESS-GO key.
The KEYLESS-GO key is not detected while the engine is running
because there is interference from a strong source of radio waves.
Awarning tone also sounds.
X
Pull overand stop the vehicle safely as soonas possible, paying
attention to road and traffic conditions.
X
Secure the vehicle against rolling away (Y page 158).
X
Operate the vehicle with the SmartKey in the ignition lock.
Â
Key Not Detected
(white display
message)
The KEYLESS-GO key cannot be detected at present.
X
Change the location of the SmartKey with the KEYLESS-GO
functions in the vehicle.
If the KEYLESS-GO key is still not detected:
X
Operate the vehicle with the SmartKey in the ignition lock.
Â
Key Detected in
Vehicle
The KEYLESS-GO key has been detected inside the vehicle during
locking.
X
Remove the KEYLESS-GO key from the vehicle.
Display messages
241
On-board computer and displays
Z
Display messages Possible causes/consequences and M Solutions
Â
Remove 'Start'
Button and Insert
Key
The KEYLESS-GO key can continuously not be detected.
KEYLESS-GO is temporarily malfunctioning or is defective. A
warning tone also sounds.
X
Insert the SmartKey into the ignition lock and turn it to the
desired position.
X
Visit a qualified specialist workshop.
Â
Close Doors to
Lock Vehicle
At leastone door is open. Awarning tone also sounds.
X
Close all doors and lockthe vehicle again.
Warning and indicator lamps in the instrument cluster
Seat belts
Problem Possible causes/consequences and M Solutions
ü
After starting the
engine, the red seat
belt warning lamp lights
up for 6seconds.
The seat belt warning lamp reminds the driver and frontpassenger
to fasten their seat belts.
X
Fastenyour seat belt (Y page 56).
ü
After starting the
engine, the red seat
belt warning lamp lights
up. In addition, a
warning tone sounds
for up to six seconds.
The driver's seat belt is not fastened.
X
Fasten your seat belt (Y page 56).
The warning tone ceases.
ü
The red seat belt
warning 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 56).
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.
242
Warning and indicator lamps in the instrument cluster
On-board computer and displays
Problem Possible causes/consequences and M Solutions
ü
The red seat belt
warning lamp flashes
and an intermittent
audible warning
sounds.
The driver or front passenger has not fastened their seat belt. The
car 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 56).
The warning lamp goes out and the intermittentwarning tone
ceases.
There are objects on the front-passenger seat.The car 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
243
On-board computer and displays
Z
Safety systems
Problem Possible causes/consequences and M Solutions
$ (USA only)
J (Canada only)
The red brake system
warning lamp comes on
while the engine is
running. 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 158).
X
Do not add brake fluid. Topping up will not remedy the
malfunction.
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 Brake System) is deactivated due to a malfunction.
BAS (Brake Assist), BAS PLUS, ESP
®
(Electronic Stability
Program), PRE-SAFE
®
, PRE-SAFE
®
Brake, the HOLD function and
hill start assist are therefore also deactivated, for example.
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
affected. 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
transmission, will not be available.
244
Warning and indicator lamps in the instrument cluster
On-board computer and displays
Problem Possible causes/consequences and M Solutions
!
The yellow ABS warning
lamp is lit while the
engine is running.
ABS is temporarily unavailable. BAS, BAS PLUS, ESP
®
, EBD
(electronic brake force distribution), PRE-SAFE
®
,
PRE-SAFE
®
Brake, the HOLD function, hill start assist are therefore
also deactivated, for example.
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
affected. 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
movements 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
245
On-board computer and displays
Z
Problem Possible causes/consequences and M Solutions
!
The yellow ABS warning
lamp is lit while the
engine is running. A
warning tone also
sounds.
EBD is not available due to a malfunction. Therefore, ABS, BAS,
BAS PLUS, ESP
®
, PRE-SAFE
®
, PRE-SAFE
®
Brake, the HOLD
function and hill start assist are also unavailable, for example.
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
affected. 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 not available due to a malfunction.Therefore,
BAS, BAS PLUS, EBD, PRE-SAFE
®
, PRE-SAFE
®
Brake, the HOLD
function and hill start assist, for example, are not available either.
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
affected. 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.
246
Warning and indicator lamps in the instrument cluster
On-board computer and displays
Problem Possible causes/consequences and M Solutions
֊
The yellow ESP
®
warning 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 66).
å
The yellow ESP
®
OFF
warning lamp is lit while
the engine is running.
ESP
®
is deactivated.
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 66).
X
Adapt your driving style to suit the road and weather conditions.
If ESP
®
cannot be activated:
X
Drive on carefully.
X
Have ESP
®
checked at a qualified specialist workshop.
M
AMG vehicles only:
The yellow SPORT
handling 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 to SPORT handling mode in accordance with the
conditions written in the "Activating/deactivating SPORT
handling mode" section (Y page 68).
Warning and indicator lamps in the instrument cluster
247
On-board computer and displays
Z
Problem Possible causes/consequences and M Solutions
÷äå
The yellow ESP
®
and
ESP
®
OFF warning
lamps are lit while the
engine is running.
ESP
®
, BAS, BAS PLUS, PRE-SAFE
®
, PRE-SAFE
®
Brake, 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.
248
Warning and indicator lamps in the instrument cluster
On-board computer and displays
Problem Possible causes/consequences and M Solutions
֌
The yellow ESP
®
and
ESP
®
OFF warning
lamps are lit while the
engine is running.
ESP
®
,BAS, PRE-SAFE
®
, the HOLD functionand hill start assist are
temporarily unavailable.
BAS PLUS and PRE-SAFE
®
Brake may also have failed.
ATTENTION ASSIST is deactivated.
Self-diagnosis is not yetcomplete.
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
movements 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.
6
The red SRS warning
lamp is lit while the
engine is running.
There is a malfunction in the SRS (Supplemental Restraint
System).
G
WARNING
The air bags or Emergency Tensioning Devices may either be
triggered unintentionally or, in the event of an accident, may not
be triggered.
There is an increased risk of injury.
X
Drive on carefully.
X
Have SRS checked at a qualified specialist workshop
immediately.
For further information about the Supplemental Restraint System,
see (Y page 41).
Warning and indicator lamps in the instrument cluster
249
On-board computer and displays
Z
Engine
Problem Possible causes/consequences and M 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 enginemay
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
specialist workshop as soon as the yellow CheckEngine warning
lamp lights up.This is due to the legal requirements in effect in
these states. If in doubt, check whether such legal regulations
apply in the state in which you are currently driving.
8
The yellow reserve fuel
warning lamp flashes
while the vehicle is in
motion. In addition,
the ; Check Engine
warning lamp may light
up.
The fuel system pressure is too low. The fuel filler cap is not closed
correctly or the fuel system is leaking.
X
Observe the additional display messages in the multifunction
display.
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
workshop.
8
The yellow reserve fuel
warning lamp lights up
while the engine is
running.
The fuel level has dropped into the reserve range.
X
Refuel at the nearest gas station.
250
Warning and indicator lamps in the instrument cluster
On-board computer and displays
Problem Possible causes/consequences and M Solutions
?
The red coolant
warning lamp lights up
while the engine is
running and the coolant
temperature gauge is
at the start of the scale.
The temperature sensor for the coolant temperature gauge is
defective.
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 158).
X
Consult a qualified specialist workshop.
Warning and indicator lamps in the instrument cluster
251
On-board computer and displays
Z
Problem Possible causes/consequences and M Solutions
?
The red coolant
warning lamp comes on
while the engine is
running.
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
malfunctioning.
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 158).
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
Check the coolant level and add coolant (Y page 286). Observe
the warning notes.
X
If you need to add coolant more often than usual, have the
engine coolant system checked.
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
mountainous terrain, and stop-and-go traffic.
?
The red coolant
warning lamp comes on
while the engine is
running. A warning tone
also sounds.
The coolant temperature has exceeded 248 ‡ (120 †). The
airflow 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 compartmentto
catch fire.
Steamfrom 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 158).
X
Waituntil the engine has cooled down.
252
Warning and indicator lamps in the instrument cluster
On-board computer and displays
Problem Possible causes/consequences and M Solutions
X
Make sure that the air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice.
X
Check the coolant level and add coolant (Y page 286). Observe
the warning notes.
X
If you need to add coolant more often than usual, have the
engine coolant system checked.
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
mountainous terrain, and stop-and-go traffic.
Driving systems
Problem Possible causes/consequences and M Solutions
·
The red distance
warning lamp lights up
while the vehicle is in
motion.
G
WARNING
The distance to the vehicle in front is too small for the speed
selected.
There is a risk of an accident.
X
Increase the distance.
·
The red distance
warning lamp lights up
while the vehicle is in
motion. A warning tone
also sounds.
G
WARNING
You are approaching a vehicle or a stationary obstacle in your line
of travel at too high a speed.
There is a risk of an accident.
X
Be prepared to brake immediately.
X
Pay careful attention to the traffic situation. You may have to
brake or take evasive action.
More information about DISTRONIC PLUS (Y page 167) and
PRE-SAFE
®
Brake (Y page 69).
Warning and indicator lamps in the instrument cluster
253
On-board computer and displays
Z
Tires
Problem Possible causes/consequences and M 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
leastone of the tires.
G
WARNING
With tire pressures which aretoo low, there is a risk of the
following 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 158).
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 297).
X
Check the tire pressure (Y page 318).
X
If necessary, correct the tire pressure.
h
USA only:
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.
254
Warning and indicator lamps in the instrument cluster
On-board computer and displays

Related Topics

Useful information Important safety notes Displays and operation Menus and submenus Display messages Warning and indicator lamps in the instrument cluster

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