Display messages Possible causes/consequences and
0050
0050Solutions 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 appear in the
multifunction display.
If these conditions are fulfilled, the front-passenger seat can be
occupied again. Whether the PASSENGER AIR BAG 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 51). Lights
i Display messages about LEDs:
This display message will only appear if all LEDs have failed. Display messages Possible causes/consequences and
0050 0050Solutions 0049
Check Left Check Left
Cornering Light Cornering Light
or
Check Right
Check Right
Cornering Light Cornering Light The left or right-hand cornering light is defective.
X
Visit a qualified specialist workshop. 0049
Check Left Low Check Left Low
Beam Beam
orCheck
Check
Right Low Beam
Right Low Beam The left or right-hand low-beam headlamp is defective.
X
Visit a qualified specialist workshop. 0049
Check Rear Left Check Rear Left
Turn Signal Turn Signal
or
Check Rear Right
Check Rear Right
Turn Signal Turn Signal The rear left-hand or rear right-hand turn signal is defective.
X
Visit a qualified specialist workshop. 280
Display
messagesOn-board computer and displays
Display messages Possible causes/consequences and
0050
0050Solutions 0049
Check Front Left Check Front Left
Parking Lamp Parking Lamp
or
Check Front Right
Check Front Right
Parking Lamp Parking Lamp The front left or front right parking or standing lamp is defective.
X
Visit a qualified specialist workshop. 0049
Backup Light Backup Light The left or right-hand backup lamp is defective.
X
Visit a qualified specialist workshop. 0049
Check Front Left Check Front Left
Sidemarker Lamp Sidemarker Lamp
or
Check Front Right
Check Front Right
Sidemarker Lamp Sidemarker Lamp The left or right front side marker lamp is defective.
X
Visit a qualified specialist workshop. 0049
Check Rear Left Check Rear Left
Sidemarker Lamp Sidemarker Lamp
or
Check Rear Right
Check Rear Right
Sidemarker Lamp Sidemarker Lamp The rear left or right side marker lamp is defective.
X
Visit a qualified specialist workshop. 0049
Check Check
Left
LeftDaytime
Daytime
Running Light
Running Light or
Check Right
Check Right
Daytime Running Daytime Running
Light Light The left-hand or right-hand daytime running lamp is faulty.
X
Visit a qualified specialist workshop. 0049
Active Headlamps Active Headlamps
Inoperative Inoperative The active light function is defective.
X
Visit a qualified specialist workshop. 0049
Malfunction See Malfunction See
Operator’s Manual Operator’s Manual The exterior lighting is defective.
X
Visit a qualified specialist workshop. 0049
Auto Auto
Lamp
LampFunction
Function
Inoperative
Inoperative The light sensor is defective.
X
Visit a qualified specialist workshop. 282
Display
messagesOn-board computer and displays
Display messages Possible causes/consequences and
0050
0050Solutions 0049
Switch Off Lights 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 0058.Adaptive Highbeam Adaptive Highbeam
Assist Assist
Inoperative Inoperative
or
Adaptive Highbeam
Adaptive Highbeam
Assist Plus Assist Plus
Inoperative Inoperative Adaptive Highbeam Assist or Adaptive Highbeam Assist Plus is
faulty.
X
Visit a qualified specialist workshop. Adaptive Highbeam Adaptive Highbeam
Assist Currently Assist Currently
Unavailable See Unavailable See
Operator's Manual Operator's Manual
or
Adaptive Adaptive
Highbeam Assist
Highbeam Assist
Plus Currently Plus Currently
Unavailable See Unavailable See
Operator's Manual Operator's Manual Adaptive Highbeam Assist or Adaptive Highbeam Assist Plus is
deactivated and temporarily not operational. 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, display
message Adaptive Highbeam Assist Now Available Adaptive Highbeam Assist Now Available or
Adaptive Highbeam Assist Plus Available Again
Adaptive Highbeam Assist Plus Available Again is
displayed.
Adaptive Highbeam Assist or Adaptive Highbeam Assist Plus is
operational again. Engine
Display messages Possible causes/consequences and
0050 0050Solutions 00BD
Check Coolant Check Coolant
Level See Level See
Operator's Manual 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 351).
X If coolant needs to be added more often than usual, have the
engine coolant system checked at a qualified specialist
workshop. 00AC 00AC The fan motor is faulty.
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. Display
messages
283On-board computer and displays Z
Driving systems
Display messages Possible causes/consequences and
0050
0050Solutions 00AD
ATTENTION ASSIST: ATTENTION ASSIST:
Take a Break! Take a Break! Based on certain criteria, ATTENTION ASSIST has detected fatigue
or a lack of concentration on the part of the driver. 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. 00AD
Attention Assist Attention Assist
Inoperative Inoperative ATTENTION ASSIST is inoperative.
X
Visit a qualified specialist workshop. 00AB
Vehicle Rising Vehicle Rising Your vehicle is adjusting to the level you have selected.
00AB
Vehicle Rising Vehicle Rising
Please Wait Please Wait The vehicle level is too low when the vehicle is stationary. A
warning tone also sounds.
X
Do not pull away.
The vehicle level is set when the display message disappears. 00AB
Stop Vehicle Stop Vehicle
Vehicle Too Low Vehicle Too Low You have pulled away while the vehicle level is still too low.
AIRMATIC sets the vehicle to the selected level after a short
period.
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 ( Ypage 190).
X Wait until the display message disappears before pulling away. AIRMATIC is defective. A warning tone also sounds.
X
Do not drive at speeds above 50 mph (80 km/h).
X Make only slight steering movements. Otherwise, the front
fender or the tires could be damaged if the steering movement
is too large.
X Listen for scraping sounds.
X Pull over and stop the vehicle safely, paying attention to road
and traffic conditions, and select a higher vehicle level.
Depending on the malfunction, it may be possible to raise the
vehicle.
X Visit a qualified specialist workshop. Display
messages
287On-board computer and displays Z
Display messages Possible causes/consequences and
0050
0050Solutions 00AB
Malfunction Malfunction The AIRMATIC function is restricted. The vehicle's handling
characteristics may be affected.
X
Do not drive at speeds above 50 mph (80 km/h).
X Visit a qualified specialist workshop. ABC Malfunction ABC Malfunction
Stop Vehicle Stop Vehicle The Active Body Control (ABC) vehicle level is too low.
X
Pull 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.
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 Consult a qualified specialist workshop. The display message is shown continuously.
Active Body Control (ABC) is malfunctioning.
X
Do not drive at speeds above 50 mph (80 km/h).
X Make only slight steering movements. Otherwise, the front
fender or the tires could be damaged if the steering movement
is too large.
X Listen for scraping sounds.
X Visit a qualified specialist workshop. ABC ABC
Vehicle
Vehicle Rising
Rising
Please
Please Wait
WaitBriefly
Briefly The vehicle level is too low when the vehicle is stationary. A
warning tone also sounds.
X
Do not pull away.
The vehicle level is set when the display message disappears. ABC Malfunction ABC Malfunction The Active Body Control (ABC) function is restricted. The vehicle's
handling characteristics may be affected.
X
Do not drive at speeds above 50 mph (80 km/h).
X Visit a qualified specialist workshop. 288
Display
messagesOn-board computer and displays
Display messages Possible causes/consequences and
0050
0050Solutions Active Parking Assist is unavailable or faulty.
X
Switch off the ignition and restart the engine.
If Active Parking Assist continues to be unavailable (the 005Dsymbol
is not shown in the multifunction display):
X Visit a qualified specialist workshop. Night View Assist Night View Assist
Currently Currently
Unavailable Unavailable Night View Assist Plus is deactivated and temporarily inoperative.
Possible causes are:
R
the windshield in the camera's field of vision is dirty.
R the camera in the radiator trim is dirty.
R visibility is impaired due to heavy rain, snow or fog.
R the outside temperature is too high.
X Clean the windshield.
X Clean the camera in the radiator trim.
If the system has been switched off due to excessive outside
temperatures, the system will switch back on automatically once
it has cooled down.
If the system detects that the camera is fully operational, the
display message disappears.
Night View Assist Plus is operational again. Night View Assist Night View Assist
Inoperative Inoperative Night View Assist Plus is faulty.
X
Visit a qualified specialist workshop. Spotlight Spotlight
Inoperative Inoperative Night View Assist Plus is deactivated and temporarily inoperative.
Possible causes are:
R
the windshield in the camera's field of vision is dirty.
R the camera in the radiator trim is dirty.
R visibility is impaired due to heavy rain, snow or fog.
R the outside temperature is too high.
X Clean the windshield.
X Clean the camera in the radiator trim.
If the system has been switched off due to excessive outside
temperatures, the system will switch back on automatically once
it has cooled down.
If the system detects that the camera is fully operational, the
display message disappears.
Night View Assist Plus is operational again. Display
messages
291On-board computer and displays Z
Warning and indicator lamps in the instrument cluster
Safety
Seat belts Warning/
indicator
lamp 0051 0051
Signal type
Possible causes/consequences and 0050
0050Solutions 00E9
0051
After starting the engine, the red seat belt warning lamp lights up for
6 seconds.
The seat belt warning lamp reminds the driver and front passenger to fasten
their seat belts.
X Fasten your seat belt (Y page 59).00E9
0051
After starting the engine, the red seat belt warning lamp lights up. In
addition, a warning tone sounds for up to 6 seconds.
The driver's seat belt is not fastened.
X Fasten your seat belt (Y page 59).
The warning tone ceases. 00E9
0051
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 59).
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. 00E9
0051
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 vehicle 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 59).
The warning lamp goes out and the intermittent warning tone ceases.
There are objects on the front-passenger seat. The vehicle 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. 302
Warning and indicator lamps in the instrument clusterOn-board computer and displays
Engine
Warning/
indicator
lamp 0051 0051
Signal type
Possible causes/consequences and 0050
0050 Solutions 00B9
0051
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 (for vehicles with gasoline engines)
R in the fuel system
The emission limit values may be exceeded and the engine may 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 Check Engine 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. 00B6
0051
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. 00B6
0051
The yellow reserve fuel warning lamp flashes while the vehicle is in motion.
In addition, the 00B9Check 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 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.308
Warning and indicator lamps in the instrument clusterOn-board computer and displays