2014 MERCEDES-BENZ GL display

ProblemPossible causes/consequences andPPSolutions
%
The yellow ABS warning
lamp is lit while the
engine is running.
ABS (Anti-lock Braking System) is deactivated due to a
malfunction. For this reason, BAS (Brake Assist), BAS PLUS,
ESP®(Electronic Stability Program), PRE-SAFE®, PRE-SAFE®
Brake, COLLISION PREVENTION ASSIST, the HOLD function, hill
start assist, crosswind driving assistance and ESP®trailer
stabilization are also deactivated, for example.
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.
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.
Warning and indicator lamps in the instrument cluster327
On-board computer and displays
Z

ProblemPossible causes/consequences andPPSolutions
%
The yellow ABS warning
lamp is lit while the
engine is running.
ABS is temporarily unavailable. Therefore, BAS, BAS PLUS, ESP®,
EBD (electronic brake force distribution), PRE-SAFE®,
PRE-SAFE®Brake, COLLISION PREVENTION ASSIST, the HOLD
function, hill start assist, crosswind driving assistance and ESP®
trailer stabilization, for example, are also deactivated.
ATTENTION ASSIST is deactivated.
Possible causes are:
Rself-diagnosis is not yet complete.
Rthe on-board voltage may be insufficient.
GWARNING
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.
XCarefully 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:
XObserve the additional display messages in the multifunction
display.
XDrive on carefully.
XVisit a qualified specialist workshop.
328Warning and indicator lamps in the instrument cluster
On-board computer and displays

ProblemPossible causes/consequences andPPSolutions
%
The yellow ABS warning
lamp is lit while the
engine is running. A
warning tone also
sounds.
EBD is malfunctioning. Therefore, ABS, BAS, BAS PLUS, ESP®,
PRE-SAFE®, PRE-SAFE®Brake, COLLISION PREVENTION ASSIST,
the HOLD function, hill start assist, crosswind driving assistance
and ESP®trailer stabilization, for example, are also not available.
ATTENTION ASSIST is deactivated.
GWARNING
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.
XObserve the additional display messages in the multifunction
display.
XDrive on carefully.
XVisit a qualified specialist workshop.
'(USA only)
M(Canada only)

ProblemPossible causes/consequences andPPSolutions
I(USA only)
$(Canada only)
The red electric parking
brake indicator lamp
flashes or lights up
and/or
$
warning lamp for the
electric parking brake
lights up.
XObserve the additional display messages in the multifunction
display.
u
The red SRS warning
lamp is lit while the
engine is running.
There is a malfunction in the SRS (Supplemental Restraint
System).
GWARNING
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.
XObserve the additional display messages in the multifunction
display.
XDrive on carefully.
XHave SRS checked at a qualified specialist workshop
immediately.
For further information about SRS, see (Ypage 43).
332Warning and indicator lamps in the instrument cluster
On-board computer and displays

ProblemPossible causes/consequences andPPSolutions
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 188).
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 373).
XIf you need to add coolant more often than usual, have the
engine coolant system checked.
XMake sure that the air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice.
XAt coolant temperatures below 248 ‡ (120 †), drive to the
nearest qualified specialist workshop.
XAvoid subjecting the engine to heavy loads, e.g. driving in
mountainous terrain, and stop-and-go traffic.
Driving systems
ProblemPossible causes/consequences andPPSolutions

Tires
ProblemPossible causes/consequences andPPSolutions
w
The yellow tire pressure
monitor warning lamp
(pressure loss/
malfunction) is lit.
The tire pressure monitor has detected a loss of pressure in at
least one of the tires.
GWARNING
With tire pressures which are too low, there is a risk of 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 traction.
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 188).
XObserve the additional display messages in the multifunction
display.
XCheck the tires and, if necessary, follow the instructions for a
flat tire (Ypage 387).
XCheck the tire pressure (Ypage 412).
XIf necessary, correct the tire pressure.
w
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.
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.
Warning and indicator lamps in the instrument cluster337
On-board computer and displays
Z

If you have questions about the activation,
contact one of the following telephone
hotlines:
RUSA:Mercedes-Benz Customer Assistance
Center at
1-800-FOR-MERCedes (1-800-367-6372)
or 1-866-990-9007
RCanada:Customer Service at
1-888-923-8367
General notes
An emergency call is dialed automatically if
an air bag or Emergency Tensioning Device is
triggered.
iYou cannot end an automatically
triggered emergency call yourself.
An emergency call can also be initiated
manually.
As soon as the emergency call has been
initiated, the indicator lamp in the SOS button
flashes. The multifunction display shows the
Connecting CallConnecting Callmessage.
The audio output is muted.
Once the connection has been made, the
Call ConnectedCall Connectedmessage appears in the
multifunction display.
All important information on the emergency
is transmitted, for example:
RCurrent location of the vehicle (as
determined by the GPS system)
RVehicle identification number
RInformation on the severity of the accident
Shortly after the emergency call has been
initiated, a voice connection is automatically
established between the Customer
Assistance Center and the vehicle occupants.
RIf the vehicle occupants respond, the
Mercedes-Benz Customer Assistance
Center attempts to get more information
on the emergency.
RIf there is no response from the vehicle
occupants, an ambulance is immediately
sent to the vehicle.
If no voice connection can be established to
the Mercedes-Benz Customer Assistance
Center, the system has been unable to initiate
an emergency call.
This can occur, for example, if the relevant
mobile phone network is not available. The
indicator lamp in the SOS button flashes
continuously.
TheCall FailedCall Failedmessage appears in the
multifunction display and must be confirmed.
In this case, summon assistance by other
means.
Making an emergency call
XTo initiate an emergency call
manually:press coverCbriefly to open.
XPress SOS buttonDbriefly.
The indicator lamp in SOS buttonD
flashes until the emergency call is
concluded.
XWait for a voice connection to the
Mercedes-Benz Customer Assistance
Center.
XAfter the emergency call, close coverC.
iIf the mobile phone network is
unavailable, mbrace will not be able to
make the emergency call. If you leave the
vehicle immediately after pressing the SOS
button, you will not know whether mbrace
placed the emergency call. In this case,
always summon assistance by other
means.
Features357
Stowage and features
Z

Roadside Assistance button
XPress Roadside Assistance buttonC.
This initiates a call to the Mercedes-Benz
Customer Assistance Center.
The indicator lamp in Roadside Assistance
buttonCflashes while the call is active.
The multifunction display shows the
Connecting CallConnecting Callmessage. The audio
output is muted.
If a connection can be made, theCallCall
ConnectedConnectedmessage 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
iThe audio system or COMAND display
indicates that a call is active. During the
call, you can change to the navigation menu
by pressing the NAVI button on COMAND,
for example.
Voice output is not available.
A voice connection is established between
the Mercedes-Benz Customer Assistance
Center and the vehicle occupants.
From the vehicle remote malfunction
diagnosis, the Mercedes-Benz Customer
Assistance Center can ascertain the nature of
the problem (Ypage 362).
The Mercedes-Benz Customer Assistance
Center either sends a qualified Mercedes-
Benz technician 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.
Further details are available in your mbrace
manual.
iThe system has not been able to initiate
a roadside assistance call, if:
Rthe indicator lamp for Roadside
Assistance call buttonCis flashing
continuously.
Rno voice connection to the Mercedes-
Benz Customer Assistance Center was
established.
This can occur if the relevant mobile phone
network is not available, for example.
TheCall FailedCall Failedmessage appears in the
multifunction display.
XTo end a call:press thevbutton on the
multifunction steering wheel.
or
XPress the corresponding button for ending
a phone call on the audio system or on
COMAND.
MB Info call button
XPress MB Info call buttonC.
This initiates a call to the Mercedes-Benz
Customer Assistance Center.
The indicator lamp in MB Info call
buttonCflashes while the connection is
being made. The multifunction display
358Features
Stowage and features