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Display messagesPossible causes/consequences and0050Solutions
0077
Tire Pressure Moni‐tor InoperativeWheel Sensors Miss‐ing
There is no signal from the tire pressure sensor of one or several
wheels, or the wheels fitted do not have suitable tire pressure
sensors. The tire pressure monitor was not restarted after a wheel
change.
GWARNING
The system is possibly unable to recognize or register low tire
pressure.
There is a risk of an accident.
XHave the faulty tire pressure sensor replaced at a qualified
specialist workshop.
or
XMount wheels with suitable tire pressure sensors.
or
XRestart the tire pressure monitor after a wheel change
(Ypage 185)
The tire pressure monitor is activated automatically after
driving for a few minutes.
If the display message continues to be displayed:
XDrive on carefully.
XVisit a qualified specialist workshop.
0077
Correct Tire Pres‐sure
The tire pressure is too low in at least one of the tires, or the tire
pressure difference between the wheels is too great.
XCheck the tire pressures at the next opportunity (Ypage 183).
XIf necessary, correct the tire pressure.
XRestart the tire pressure monitor (Ypage 185).
Display messages127
>> On-board computer and displays.
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Vehicle
Display messagesPossible causes/consequences and0050Solutions
0049
BrakeLightsInoper‐ative
The brake lights are not functioning. The actuation or the bulbs/
LEDs are faulty.
GWARNING
Bulbs and lamps are an important aspect of vehicle safety. The
brake lamps are not functioning and are no longer working when
braking.
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.
XSecure the vehicle against rolling away (Ypage 100).
XConsult a qualified specialist workshop.
Switch Off LightsThe lights are still switched on when you leave the vehicle. A
warning tone also sounds.
XTurn the light switch to 0058or003F.
\
(Example of all doors
and tailgate open)
A door or the tailgate is open. A warning tone also sounds.
The display shows the open doors/tailgate.
XPull over paying attention to road and traffic conditions and
stop the vehicle, then close the doors and tailgate.
0052
Power Steering Mal‐function See Opera‐tor's Manual
The power steering is malfunctioning.
GWARNING
You will need to use more force to steer.
There is a risk of an accident.
XCheck whether you are able to apply the extra force required.
XIf you are able to steer safely: carefully drive on to a qualified
specialist workshop.
XIf you are unable to steer safely: do not continue driving. Con-
tact the nearest qualified specialist workshop.
0052
Electronics Mal‐function See Opera‐tor's Manual
The power steering assistance may be malfunctioning. You may
need to use more force to steer.
XDrive on carefully to a qualified specialist workshop and have
the steering checked immediately.
0044
Parking Lock Mal‐function To Park:Apply Parking Brake
Only for vehicles with automatic transmission: the letterN
flashes in the middle of the display if you try to shift to P. A
warning tone also sounds.
The parking lock is malfunctioning.
XApply the parking brake to park.
128Display messages
>> On-board computer and displays.
Page 131 of 214

Display messagesPossible causes/consequences and0050Solutions
To Start Engine:Shift to P or N
Vehicles with automatic transmission only: the currently selected
transmission position is shown in the middle of the display.
You have attempted to start the engine with the transmission in
position Dor R.
XShift to Por Nto start.
To Start Engine:Shift to N.
Vehicles with automatic transmission only: the currently selected
transmission position is shown in the middle of the display.
The engine switches off while the vehicle is in motion.
XShift to Nto start.
0044
To Start Engine:Apply Brake
Vehicles with automatic transmission only: N is shown in the
middle of the display.
You have tried to start the engine in transmission position N
without depressing the brake pedal.
XDepress the brake pedal.
TransmissionNotinP Risk of VehicleRolling Away
Vehicles with automatic transmission only: a warning tone also
sounds.
The driver's door is open/not fully closed and the gear lever is in
position R,Nor D.
GWARNING
The vehicle may roll away.
There is a risk of an accident.
XShift the selector lever to position P.
XSecure the vehicle to prevent it from rolling away.
XFully close the driver's door.
0079
Transmission Mal‐functionVisitWork‐shop
Vehicles with automatic transmission only: 0079is shown.
The automatic transmission is malfunctioning.
XNotify a qualified specialist workshop or breakdown service.
0079or0045/
003A/0046/
0044
Clutch ProtectionActive See Opera‐tor's Manual
Vehicles with automatic transmission only: 0079flashes alter-
nately with the currently selected transmission position.
The automatic transmission clutch has overheated. You will feel
the clutch pedal pulsate.
XInitially try to avoid pulling away or crawling maneuvers.
The automatic transmission is available again when the display
message goes out.
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Display messagesPossible causes/consequences and0050Solutions
0079or0045/
003A/0046/
0044
Transmission Over‐heated See Opera‐tor's Manual
Only for vehicles with automatic transmission: 0079flashes
alternately with the currently selected transmission position. A
warning tone also sounds.
Further pulling away or crawling maneuvers have led to a critical
clutch temperature.
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
XSecure the vehicle to prevent it from rolling away.
XWait until the automatic transmission has cooled down and the
display message does not reappear after acknowledging it.
Electronics Mal‐functionVisitWork‐shop
In addition the \door warning lamp and other warning lamps,
e.g. 00E5, light up.
The central vehicle electronics system is malfunctioning.
After the engine is switched off:
Rdo not lock/unlock the doors using the remote control function of
the key
Ryou can no longer start the engine.
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driv-
ing under any circumstances.
XSecure the vehicle against rolling away (Ypage 100).
XConsult a qualified specialist workshop.
Electronics Mal‐functionVisitWork‐shop
The transmission electronics are malfunctioning or the neutral
sensor is faulty.
Cruise control is automatically deactivated.
Starting the engine is only possible with the clutch pedal fully
depressed.
XVisit a qualified specialist workshop.
0039
Remove key
The key is in the ignition lock, the engine is switched off and the
driver's door is open.
XRemove the SmartKey.
Rain and Light Sen‐sor InoperativeThe rain/light sensor is malfunctioning.
Automatic headlamp mode and automatic intermittent wipe are not
available.
XSwitch on exterior lighting manually if required (Ypage 67).
XSwitch the windshield wipers on or off manually as required
(Ypage 74).
XVisit a qualified specialist workshop.
130Display messages
>> On-board computer and displays.
Page 133 of 214

Warning and indicator lamps in the instrument cluster
Safety
Seat belts
ProblemPossible causes/consequences and 0050Solutions
00E9
After starting the
engine, the red seat
belt warning lamp
lights up for six sec-
onds.The seat belt warning lamp reminds the driver and front passenger
to fasten their seat belts. An additional warning tone will sound if
the driver's seat belt is not fastened.
XFasten your seat belt (Ypage 31).
The warning tone ceases.
00E9
After starting the
engine, the red seat
belt warning lamp
lights up.The driver or front passenger has not fastened their seat belt.
XFasten your seat belt (Ypage 31).
The warning lamp goes out.
00E9
The red seat belt warn-
ing lamp flashes and a
warning tone sounds.The driver or front passenger has not fastened their seat belt. The
vehicle is being driven faster than 12 mph (20 km/h) or has briefly
been driven faster than 12 mph (20 km/h).
XFasten your seat belt (Ypage 31).
The warning lamp goes out and the warning tone ceases.
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Page 134 of 214

Safety systems
ProblemPossible causes/consequences and0050Solutions
0075
The red restraint sys-
tem 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 trig-
gered unintentionally or, in the event of an accident, may not be
triggered.
There is an increased risk of injury.
XDrive on carefully.
XHave the restraint system checked at a qualified specialist
workshop immediately.
For further information about the restraint system, see
(
Ypage 29).
0027 (USA only)
004D (Canada only)
00E50025
The red brake system
warning lamp, the yel-
low ESP
®warning lamp
and the yellow ABS
warning lamp light up
while the engine is
running.
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.
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driv-
ing under any circumstances.
XSecure the vehicle against rolling away (Ypage 100).
XConsult a qualified specialist workshop.
0027 (USA only)
004D (Canada only)
The red brake system
warning lamp comes on
while the vehicle is
moving. A warning tone
also sounds.You are driving with the parking brake engaged.
XRelease the parking brake.
The warning lamp goes out and the warning tone ceases.
132Warning and indicator lamps in the instrument cluster
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Page 135 of 214

ProblemPossible causes/consequences and0050Solutions
0027(USA only)
004D (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.
GWARNING
The braking effect may be impaired.
There is a risk of an accident.
XObserve the additional display messages.
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driv-
ing under any circumstances.
XSecure the vehicle against rolling away (Ypage 100).
XDo not add brake fluid. Adding more will not remedy the mal-
function.
XConsult a qualified specialist workshop.
0027 (USA only)
004D (Canada only)
The red brake system
warning lamp comes on
while the engine is
running. A warning
tone also sounds.EBD (electronic brake force distribution) is malfunctioning. This
means that ABS, ESP®, Crosswind Assist and hill start assist, for
example, are also unavailable.
Other driving systems could be switched off automatically.
GWARNING
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock early 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.
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driv-
ing under any circumstances.
XSecure the vehicle against rolling away (Ypage 100).
XConsult a qualified specialist workshop.
Warning and indicator lamps in the instrument cluster133
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Page 136 of 214

ProblemPossible causes/consequences and0050Solutions
0025
The yellow ABS warning
lamp is lit while the
engine is running.ABS is malfunctioning. This means that ESP®, Crosswind Assist and
hill start assist, for example, are also unavailable.
Other driving systems could be switched off automatically.
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.
XDrive on carefully.
XVisit a qualified specialist workshop.
If the ABS control unit is faulty, there is also a possibility that
other systems may be unavailable.
00E5
The yellow ESP®warn-
ing lamp is on when you
are driving.
In addition, the \
door warning lamp and
other warning lamps,
e.g. 0077, light up.
The central vehicle electronics system is malfunctioning.
After the engine is switched off:
Rdo not lock/unlock the doors using the remote control function of
the key
Ryou can no longer start the engine.
XObserve the additional display messages in the display.
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driv-
ing under any circumstances.
XSecure the vehicle against rolling away (Ypage 100).
XConsult a qualified specialist workshop.
00E5
The yellow ESP®warn-
ing lamp flashes while
the vehicle is in
motion.
ESP®or traction control has intervened because there is a risk of
skidding or at least one wheel has started to spin.
Cruise control is automatically deactivated.
XWhen pulling away, only depress the accelerator pedal as far as
necessary.
XEase off the accelerator pedal while the vehicle is in motion.
XAdapt your driving style to suit the road and weather condi-
tions.
134Warning and indicator lamps in the instrument cluster
>> On-board computer and displays.