Display messagesPossible causes/consequences and M SolutionsThe yellow F (USA only)/ ! (Canada only) warning lamp
lights up. The red F (USA only)/ ! (Canada only) indicator
lamp flashes for approximately 10 seconds after the electric
parking brake has been applied or released. It then goes out or
remains lit.
The electric parking brake is malfunctioning, e.g. because of over
or undervoltage.XPull away carefully.XVisit a qualified specialist workshop.
In the event of over or undervoltage:
XRemove the cause for the over or undervoltage, e.g. by charging
the battery or restarting the engine.XSwitch the ignition off and on, and then apply or release the
electric parking brake.
If this does not release the electric parking brake:
XDo not drive on.XConsult a qualified specialist workshop.The yellow F (USA only)/ ! (Canada only) warning lamp
lights up. The red F (USA only)/ ! (Canada only) indicator
lamp flashes for approximately 10 seconds after the electric
parking brake has been applied or released. It then goes out or
remains lit.
The electric parking brake has overheated.XAllow the vehicle to cool down. Do not apply or release the
electric parking brake during this time.XUse the folding wheel chock (Y page 464) from the vehicle tool
kit to secure the vehicle against rolling away.XWhen the vehicle has cooled down: switch the ignition off and
on again, then apply or release the electric parking brake.392Display messagesOn-board computer and displays
Display messagesPossible causes/consequences and M SolutionsF
(USA only)
!
(Canada only)
Pkg Brake
InoperativeThe yellow F (USA only)/ ! (Canada only) warning lamp
lights up. The red F (USA only)/ ! (Canada only) indicator
lamp flashes for approximately 10 seconds after application or
release F (USA only)/ ! (Canada only). It then goes out or
remains lit.
The electric parking brake is malfunctioning.XSwitch the ignition off and on, and then apply the electric
parking brake.
If it is not possible to apply the electric parking brake:
XShift the transmission to P.XUse the folding wheel chock (Y page 464) from the vehicle tool
kit to secure the vehicle against rolling away.XConsult a qualified specialist workshop.F
(USA only)
!
(Canada only)
Turn On the
Ignition to
Release the
Parking BrakeThe red F (USA only)/ ! (Canada only) indicator lamp lights
up.
You have attempted to release the electric parking brake with the
ignition switched off.XKey: turn the key to position 1 in the ignition lock.XKEYLESS-GO: switch on the ignition.$
(USA only)
J
(Canada only)
Service See Oper.
ManualThere is a malfunction in the system. The brake system continues
to operate normally.XDrive on carefully.XVisit a qualified specialist workshop.$
(USA only)
J
(Canada only)
Check Brake Fluid
LevelGRisk of accident
There is insufficient brake fluid in the brake fluid reservoir.
Additionally, the red $ (USA only)/ J (Canada only)
warning lamp lights up in the instrument cluster and a warning
tone sounds.
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.XApply the parking brake.XConsult a qualified specialist workshop.XDo not add brake fluid. This will not rectify the malfunction.Display messages393On-board computer and displaysZ
GWarning
Driving with the message Check Brake Fluid Level displayed can result in an accident. Have
your brake system checked immediately.
Do not add brake fluid before checking the brake system. Overfilling the brake fluid reservoir can
result in spilling brake fluid on hot engine parts and the brake fluid catching fire. You can be
seriously burned.
Lights
i Display messages about LEDs:
This display message will only appear if all LEDs have failed.
Display messagesPossible causes/consequences and M Solutionsb
Check Left
Cornering Light
or
Check Left
Cornering LightThe left or right-hand cornering light is faulty.XCheck whether you are permitted to change the bulb yourself
( Y page 278).
or
XVisit a qualified specialist workshop.b
Check Left Low Beam
or
Check Right Low
BeamThe left or right-hand low-beam headlamp is faulty.XCheck whether you are permitted to change the bulb yourself
( Y page 278).
or
XVisit a qualified specialist workshop.b
Check Rear Left
Turn Signal
or
Check Rear Right
Turn SignalThe rear left-hand or rear right-hand turn signal is faulty.XCheck whether you are permitted to change the bulb yourself
( Y page 278).
or
XVisit a qualified specialist workshop.b
Check Front Left
Turn Signal
or
Check Front Right
Turn SignalThe front left-hand or front right-hand turn signal is faulty.XCheck whether you are permitted to change the bulb yourself
( Y page 278).
or
XVisit a qualified specialist workshop.394Display messagesOn-board computer and displays
Display messagesPossible causes/consequences and M Solutionsb
Check Rear Left
Fog Lamp
or
Check Rear Right
Fog LampThe left-hand or right-hand rear fog lamp is faulty.XCheck whether you are permitted to change the bulb yourself
( Y page 278).
or
XVisit a qualified specialist workshop.b
Check Front Left
Parking Lamp
or
Check Front Right
Parking LampThe front left or front right standing lamp is faulty.XCheck whether you are permitted to change the bulb yourself
( Y page 278).
or
XVisit a qualified specialist workshop.b
Check Left Reverse
Lamp
or
Check Right
Reverse LampThe left or right-hand backup lamp is faulty.XCheck whether you are permitted to change the bulb yourself
( Y page 278).
or
XVisit a qualified specialist workshop.b
Check Front Left
Sidemarker Lamp
or
Check Front Right
Sidemarker LampThe left or right front side marker lamp is faulty.XCheck whether you are permitted to change the bulb yourself
( Y page 278).
or
XVisit a qualified specialist workshop.b
Check Rear Left
Sidemarker Lamp
or
Check Rear Right
Sidemarker LampThe rear left or right side marker lamp is faulty.XCheck whether you are permitted to change the bulb yourself
( Y page 278).
or
XVisit a qualified specialist workshop.b
Check Left Daytime
Running Light
or
Check Right
Daytime Running
LightThe left or right-hand daytime running lamp is defective.XCheck whether you are permitted to change the bulb yourself
( Y page 278).
or
XVisit a qualified specialist workshop.396Display messagesOn-board computer and displays
Display messagesPossible causes/consequences and M Solutionsb
Active Headlamps
InoperativeThe active light function is faulty.XVisit a qualified specialist workshop.b
Malfunction See
Oper. ManualThe exterior lighting is faulty.XVisit a qualified specialist workshop.b
AUTO Lamp Function
InoperativeThe light sensor is faulty.XVisit a qualified specialist workshop.
USA only:
XSwitch off the daytime running lamps in the on-board computer
( Y page 377).XSwitch the lights on and off using the light switch.b
Please Switch Off
LightsThe lights are still switched on when you leave the vehicle. A
warning tone also sounds.XTurn the light switch to $ or c .
or
XIf the rear fog lamp is switched on: press the light switch in to
the stop.Adaptive High-beam
Assist
InoperativeAdaptive Highbeam Assist is faulty.XVisit a qualified specialist workshop.
Engine
Display messagesPossible causes/consequences and M Solutions+
Check Coolant
Level See Oper.
ManualThe coolant level is too low.XAdd coolant, observing the warning notes when doing so
( Y page 450).XIf coolant needs adding more often than usual, have the engine
coolant system checked at a qualified specialist workshop.GWarning
Do not spill antifreeze on hot engine parts. Antifreeze contains ethylene glycol which may burn
if it comes into contact with hot engine parts. You could be seriously burned.
Display messages397On-board computer and displaysZ
Driving systemsDisplay messagesPossible causes/consequences and M SolutionsÀ
Attention Assist:
Drowsiness
detectedBased on certain criteria, ATTENTION ASSIST has detected fatigue
or a lack of concentration on the part of the driver. A warning tone
also sounds.XIf necessary, take a break.
During long journeys, take regular breaks in good time so you get
enough rest.
À
Attention Assist
InoperativeATTENTION ASSIST is inoperative.XVisit a qualified specialist workshop.Á
Night View Assist
InoperativeNight View Assist Plus is faulty.XVisit a qualified specialist workshop.Á
Night View Assist
Currently
UnavailableThe temperature of the camera is too high.XWait until you see the Night View Assist Available
Again display message.
You can also:
XFold the camera cover down ( Y page 457).XAdjust the air distribution of the automatic air conditioning
upwards.Á
Night View Assist
Lights Must Be Set
to AUTO or ONA condition for activating Night View Assist Plus has not been met.XTurn the light switch to c or L .Á
Night View Assist
Not in Reverse GearA condition for activating Night View Assist Plus has not been met.XShift the transmission to P, N or D.Á
Night View Assist
Lights ON or AUTO,
Not in R GearA condition for activating Night View Assist Plus has not been met.XTurn the light switch to c or L .XShift the transmission to P, N or D.Display messages401On-board computer and displaysZ
Display messagesPossible causes/consequences and M SolutionsÁ
Night View Assist
Only When It Is
DarkYou have attempted to activate Night View Assist Plus in the
daytime.
Night View Assist Plus can only be activated when it is dark.¨
Vehicle RisingYour vehicle is adjusting to the level you have selected.¨
Vehicle Rising
Please Wait BrieflyThe vehicle level is too low when the vehicle is stationary. A
warning tone also sounds.XDo not pull away.
The vehicle level is set when the display message disappears.¨
STOP Car Too LowYou have pulled away while the vehicle level is still too low.
AIRMATIC sets the vehicle to the selected level after a short
period.XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.XEngage the parking brake.XWait until the display message disappears before pulling away.GRisk of accident
AIRMATIC is faulty. A warning tone also sounds.
XDo not drive faster than 50 mph (80 km/h).XMake only slight steering movements. The front fender or the
tires could be damaged if the steering movement is too large.XListen for scraping sounds.XPull over and stop the vehicle safely, paying attention to road
and traffic conditions, and select a higher vehicle level.
The vehicle may be raised, depending on the type of
malfunction.XVisit a qualified specialist workshop.¨
MalfunctionGRisk of accident
The AIRMATIC function is restricted. The vehicle's handling
characteristics may be affected.
XDo not drive faster than 50 mph (80 km/h).XVisit a qualified specialist workshop.402Display messagesOn-board computer and displays
Display messagesPossible causes/consequences and M SolutionsABC
Malfunction Stop
VehicleThe ABC (Active Body Control) vehicle level is too low.XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
After a few seconds, the vehicle level is adjusted and the display
message disappears.The vehicle is leaking oil.
The display message is shown continuously.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.XConsult a qualified specialist workshop or breakdown service.The display message is shown continuously.
ABC is malfunctioning.XDo not drive faster than 50 mph (80 km/h).XMake only slight steering movements. The front fender or the
tires could be damaged if the steering movement is too large.XListen for scraping sounds.XVisit a qualified specialist workshop.ABC
Vehicle Rising
Please Wait BrieflyThe ABC vehicle level is too low when the vehicle is stationary.XDo not pull away.
The vehicle level is set when the display message disappears.ABC
MalfunctionThe ABC function is restricted. The vehicle's handling
characteristics may be affected.XDo not drive faster than 50 mph (80 km/h).XVisit a qualified specialist workshop.HOLD
OffThe HOLD function is deactivated. The vehicle is skidding or a
condition for activation is no longer met when the brake pedal is
firmly depressed. A warning tone also sounds.XReactivate the HOLD function later.Radar Sensors
Deactivated See
Oper. ManualThe radar sensor system is deactivated.XCheck whether or not the radar sensor system may be activated
( Y page 378).XSwitch on the radar sensor system ( Y page 378).Display messages403On-board computer and displaysZ