Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
$JN$ (USA only) or J(Canada only): the red brake system warning lamp is
lit while the engine is running.
A warning tone also sounds.
There is not enough brake fluid in the brake fluid reservoir.
GWARNING
The braking effect may be impaired.
There is a risk of an accident.
XPull over and stop the vehicle safely as soon as possible, paying attention to road
and traffic conditions. Do not continue driving under any circumstances.
XSecure the vehicle against rolling away (Ypage 189).
XDo not add brake fluid. Adding more will not correct the malfunction.
XConsult a qualified specialist workshop.
XObserve the additional display messages in the multifunction display.
$N USA only: the red brake system warning lamp is lit while the engine is running.
The multifunction display also shows a display message with the #symbol.
The brake pads/linings have reached their wear limit.
XVisit a qualified specialist workshop.
!N The yellow ABS warning lamp is lit while the engine is running.
ABS (Anti-lock Braking System) is deactivated due to a malfunction. Therefore BAS
(Brake Assist), BAS PLUS with Cross-Traffic Assist, COLLISION PREVENTION
ASSIST PLUS, ESP
®(Electronic Stability Program), PRE ‑SAFE®, PRE‑SAFE®PLUS,
PRE‑SAFE®Brake, the HOLD function, Hill Start Assist, Crosswind Assist, STEER
CONTROL, Active Lane Keeping Assist and Active Blind Spot Assist are also deac-
tivated.
ATTENTION ASSIST is deactivated.
GWARNING
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.
XObserve the additional display messages in the multifunction display.
XDrive on carefully.
XVisit a qualified specialist workshop immediately.
If the ABS control unit is faulty, there is also a possibility that other systems, such
as the navigation system or the automatic transmission, will not be available.
316Warning and indicator lamps in the instrument cluster
On-board computer and displays
Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
åNThe yellow ESP®OFF warning lamp is lit while the engine is running.
ESP®is deactivated.
GWARNING
If ESP
®is switched off, ESP®is unable to stabilize the vehicle.
Further driving systems or driving safety systems are thus restricted, e.g. Active
Blind Spot Assist. The system does not perform course-correcting brake applica-
tions.
There is an increased risk of skidding and an accident.
XReactivate ESP®.
In rare cases (
Ypage 74), it may be best to deactivate ESP®.
Observe the important safety notes on ESP®(Ypage 73).
XAdapt your driving style to suit the road and weather conditions.
If ESP
®cannot be activated:
XDrive on carefully.
XContact a qualified specialist workshop and have ESP®checked.
F!N F (USA only) or !(Canada only): the red indicator lamp for the electric
parking brake flashes or is lit and/or the yellow warning lamp for the electric
parking brake is lit.
XObserve the additional display messages in the multifunction display.
6N The red restraint system warning lamp is lit while the engine is running.
The restraint system is faulty.
GWARNING
The air bags or Emergency Tensioning Devices may either be triggered uninten-
tionally or, in the event of an accident, may not be triggered.
There is an increased risk of injury.
XObserve the additional display messages in the multifunction display.
XDrive on carefully.
XContact a qualified specialist workshop and have the restraint system checked.
For further information about the restraint system, see (
Ypage 44).
Warning and indicator lamps in the instrument cluster319
On-board computer and displays
Z
Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
?NThe 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.
XObserve the additional display messages in the multifunction display.
XPull over and stop the vehicle safely and switch off the engine, paying attention
to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 189).
XLeave the vehicle and keep a safe distance from the vehicle until the engine has cooled down.
XCheck the coolant level and add coolant, observing the warning notes
(Ypage 356).
XIf you have to add coolant frequently, have the engine cooling system checked.
XMake sure that the air supply to the engine radiator is not blocked, e.g. by snow,
slush or ice.
XDo not start the engine again until the coolant temperature is below 257 ‡
(125 †). Otherwise, the engine could be damaged.
XDrive to the nearest qualified specialist workshop.
XAvoid heavy loads on the engine as you do so, e.g. driving in mountainous terrain
and stop-start traffic.
?N The red coolant warning lamp comes on while the engine is running. A warning
tone also sounds.
The coolant temperature has exceeded 255 ‡(124 †). The airflow to the engine
radiator may be blocked or the coolant level may be too low.
GWARNING
The engine is not being cooled sufficiently and may be damaged.
Do not drive when your engine is overheated. This can cause some fluids which
may have leaked into the engine compartment to catch fire.
Steam from the overheated engine can also cause serious burns which can occur
just by opening the hood.
There is a risk of injury.
XObserve the additional display messages in the multifunction display.
XPull over and stop the vehicle safely and switch off the engine, paying attention
to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 189).
XLeave the vehicle and keep a safe distance from the vehicle until the engine has
cooled down.
XCheck the coolant level and add coolant, observing the warning notes
(Ypage 356).
XIf you have to add coolant frequently, have the engine cooling system checked.
XMake sure that the air supply to the engine radiator is not blocked, e.g. by snow,
slush or ice.
Warning and indicator lamps in the instrument cluster321
On-board computer and displays
Z
Tires
Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
hNThe yellow combination low tire pressure telltale/TPMS malfunction telltale for
the TPMS (pressure loss or malfunction) is lit.
The tire pressure monitor has detected a loss of pressure in at least one of the tires.
GWARNING
Tire pressures that are too low pose the following hazards:
Rthey may burst, especially as the load and vehicle speed increase.
Rthey may wear excessively and/or unevenly, which may greatly impair tire trac-
tion.
Rthe driving characteristics, as well as steering and braking, may be greatly
impaired.
There is a risk of an accident.
XStop the vehicle without making any sudden steering or braking maneuvers. Pay
attention to the traffic conditions as you do so.
XSecure the vehicle against rolling away (Ypage 189).
XObserve the additional display messages in the multifunction display.
XCheck the tires and, if necessary, follow the instructions for a flat tire
(Ypage 367).
XCheck the tire pressure (Ypage 390).
XIf necessary, correct the tire pressure.
hN The yellow combination low tire pressure telltale/TPMS malfunction telltale for
the TPMS (pressure loss or malfunction) flashes for approximately one minute and
then remains lit.
The tire pressure monitor is faulty.
GWARNING
The system is possibly unable to recognize or register low tire pressure.
There is a risk of an accident.
XObserve the additional display messages in the multifunction display.
XVisit a qualified specialist workshop immediately.
Warning and indicator lamps in the instrument cluster323
On-board computer and displays
Z
XCliphook =into groove ?.
XTo close:uncliphook =from groove ?.
XFasten hook =to the bracket on the under-
side of the trunk floor.
XFold the trunk floor down.
Roof carrier
Important safety notes
GWAR NING
When you load the roof, the center of gravity
of the veh iclerises and the driving character-
istics change. Ifyou exceed the maximum roof
load, the driving characteristics, as wellas
steering and braking, will begreatly impaired.
There isa risk of an acc ident.
Never exceed the maximum roof load and
adjust your driving style.
You willfind information on the maximum roof
load inthe "Technical data" section
(
Ypage 433).
!Mercedes-Benz recommends that you only
use roof carriers that have been tested and
approved for Mercedes-Benz veh icles. This
helps to avoid damage to the veh icle.
Position the load on the roof carrier insuch a
way that the veh icle willnot sustain damage
even when it is inmotion.
Ensure that, dependin g on the vehicle's
equipm ent, you can raise the panorama roof
wit h power tilt/ sliding panel fully and open
the trunk lidfully when the roof carrier is
installed.
!To avoid damaging or scratching the covers,
do not use metallic or hard objects to open
them.
An incorrectly secured roof carrier or roof load
may become detached from the vehicle. You
must therefore ensure that you observe the roof carrier manufacturer's installation instructions.
Vehicles with a panorama roofwith power
tilt/sliding panel: the pan
orama roof with
power tilt/sliding panel cannot be opened if a
roof carrier isinstalled. The panorama roof with
power tilt/sliding panel can still be raised to
allow ventilation of the vehicle interior.
If the panorama roof with power tilt/sliding
panel makes contact with a roof carrier
approved byMercedes-Benz, the sunroof will
lower slightly but remain raised at the rear.
Attaching the roof carrier
XFold covers :upwards in the direction of the
arrow.
XOnly secure the roof carrier to the anchorage
points under covers :.
XObserve the manufacturer's installation
instructions.
Features
Cup holder
Important safety notes
GWARNING
If objects in the passenger compartment are
stowed incorrectly, they can slide or be
thrown around and hit vehicle occupants. In
addition, cupholders, open stowage spaces
and mobile phone brackets cannot always
330Features
Stowage and features
RUse only connector cables that are dry and
free of damage.
RWhen the ignition is off, make sure that the
115 V power socket is dry.
RHave the 115 V power socket checked or
replaced immediately at a qualified speci-
alized workshop if it is damaged or has been
pulled out of the trim.
RNever plug the connector cable into a 115 V
power socket that is damaged or has been
pulled out of the trim.
GDANGER
If you reach into the power socket or plug
inappropriate devices into the power socket,
you could receive an electric shock. There is a
risk of fatal injury.
Only connect appropriate devices to the
power socket.
!Note that work and repairs on the 115 V
power socket should only be carried out by
qualified specialist personnel.
General notes
The 115 V power socket provides an alternating
voltage of 115 V so that small electronic devices
can be connected. These devices, such as
games consoles, chargers and laptops, must not consume more than a maximum of 150 watts
altogether.
Requirements for operation of these devices:
Rthe electronic device that you connect has a
suitable connector and conforms to stand-
ards specific to the country you are in.
Rthe plug of the electronic device is plugged
correctly into 115 V power socket.
Rthe maximum wattage of the device to be
connected must not exceed 150 watts.
Rthe on-board power supply is within a permis-sible voltage range.
Rthe 12 V sockets in the center console in the
front compartment (Ypage 336) and in the
trunk are functional (Ypage 337).
Using the 115 V power socket
The 115 V socket is in the center console in the
rear compartment on vehicles with a rear bench
seat or electrically adjustable rear seats.
XTo switch on: switch the ignition on.
XOpen flap=.
XInsert the plug of the electronic device into
115 V power socket :.
Indicator lamp ;lights up.
XTo switch off: remove the connector from
115 V socket :.
Ensure that you do not pull on the cord.
The 115 V socket is in the armrest on vehicles
with individual seats in the rear.
XOpen the armrest (Ypage 327).
XTo switch on: switch the ignition on.
XOpen flap=.
XInsert the plug of the electronic device into
115 V power socket :.
Indicator lamp ;lights up.
XTo switch off: remove the connector from
115 V socket :.
Ensure that you do not pull on the cord.
338Features
Stowage and features
The system is available if:
Rit has been activated and is operational
Rthe corresponding mobile phone network is
available for transmitting data to the Cus-
tomer Center
Ra service subscription is available
Determining the location of the vehicle on a map
is only possible if:
RGPS reception is available.
Rthe vehicle position can be forwarded to the
Customer Assistance Center.
The mbrace system
To adjust the volume during a call, proceed as
follows:
XPress the WorX button on the multi-
function steering wheel.
or
XUse the volume control on the multimedia
system.
The system offers various services, e.g.:
RAutomatic and manual emergency call
RRoadside Assistance call
RMB Info call
You can find information and a description of all
available features under "Owners Online" at
http://www.mbusa.com.
System self-test
After you have switched on the ignition, the sys-
tem carries out a self-diagnosis.
A malfunction in the system has been detected if one of the following occurs:
RThe indicator lamp in the SOS button does notcome on during the system self-test.
RThe indicator lamp in the FRoadside
Assistance button does not light up during
self-diagnosis of the system.
RThe indicator lamp in the ïMB Info call
button does not light up during self-diagnosis
of the system.
RThe indicator lamp in one or more of the fol-
lowing buttons continues to light up red after
the system self-diagnosis:
-SOS button
-F Roadside Assistance call button
-ïMB Info call button
RTheInoperativeor the Service NotActivatedmessage appears in the multi-
function display after the system self-diagno-
sis.
If a malfunction is indicated as outlined above,
the system may not operate as expected. In the event of an emergency, help will have to be
summoned by other means.
Have the system checked at the nearest author-
ized Mercedes-Benz Center or contact the fol-
lowing service hotlines:
Mercedes-Benz Customer Assistance Center at 1-800-FOR-MERCedes (1-800-367-6372) or
1-866-990-9007
Emergency call
Important safety notes
GWARNING
It can be dangerous to remain in the vehicle,
even if you have pressed the SOS button in an emergency if:
Ryou see smoke inside or outside of the vehi-
cle, e.g. if there is a fire after an accident
Rthe vehicle is on a dangerous section of
road
Rthe vehicle is not visible or cannot easily beseen by other road users, particularly when
dark or in poor visibility conditions
There is a risk of an accident and injury.
Leave the vehicle immediately in this or simi-
lar situations as soon as it is safe to do so.
Move to a safe location along with other vehi-
cle occupants. In such situations, secure the
vehicle in accordance with national regula-
tions, e. g. with a warning triangle.
General notes
Observe the notes on system activation
(Ypage 340).
An emergency call is dialed automatically if an
air bag or Emergency Tensioning Device is trig-
Features341
Stowage and features
Z
multifunction display. The audio output is
muted.
If a connection can be made, the Call Con‐
nectedmessage appears in the multifunction
display.
If a mobile phone network and GPS reception
are available, the system transfers data to the
Mercedes-Benz Customer Assistance Center,
for example:
Rcurrent location of the vehicle
Rvehicle identification number
The multimedia system display indicates that a
call is active. During the call, you can change to
the navigation menu by pressing the NAVI but-
ton on the multimedia system, for example.
Voice output is not available in this case.
A voice connection is established between the
Mercedes-Benz Customer Assistance Center
and the vehicle occupants.
From the remote malfunction diagnosis, the
Mercedes-Benz Customer Assistance Center
can ascertain the nature of the problem
(
Ypage 346).
The Mercedes-Benz Customer Assistance Cen-
ter either sends a qualified Mercedes-Benz tech-
nician or makes arrangements for your vehicle
to be transported to the nearest authorized
Mercedes-Benz Center.
You may be charged for services such as repair
work and/or towing.
You can find more information in the separate
mbrace manual.
The system has not been able to initiate a Road-
side Assistance call, if:
Rthe indicator lamp for Roadside Assistance
call button Fis flashing continuously.
Rno voice connection to the Mercedes-Benz
Customer Assistance Center was estab-
lished.
This can occur if the relevant mobile phone net-
work is not available, for example.
The Call Failed
message appears in the mul-
tifunction display.
XTo end a call: press the~button on the
multifunction steering wheel.
or
XPress the corresponding multimedia system
button for ending a phone call.
MB Info call button
XTo call MB Info: press MB Info call button :.
This initiates a call to the Mercedes-Benz Cus-
tomer Assistance Center.
The indicator lamp in MB Info call button :
flashes while the connection is being made.
The Connecting Call
message appears in
the multifunction display. The audio output is
muted.
If a connection can be made, the Call Con‐
nectedmessage appears in the multifunction
display.
If a mobile phone network and GPS reception
are available, the system transfers data to the
Mercedes-Benz Customer Assistance Center,
for example:
Rcurrent location of the vehicle
Rvehicle identification number
The multimedia system display indicates that a
call is active. During the call, you can change to
the navigation menu by pressing the NAVI but-
ton on COMAND, for example.
Voice output is not available in this case.
A voice connection is established between the
Mercedes-Benz Customer Assistance Center
and the vehicle occupants.
You receive information about operating your
vehicle, about the nearest authorized
Mercedes-Benz Center and about other prod-
ucts and services from Mercedes-Benz.
You can find further information on the mbrace
system under "Owners Online" at http://
www.mbusa.com.
Features343
Stowage and features
Z