G
WARNING
If the 00170016 indicator lamp remains lit with an adult occupant on the front-passenger
seat even after performing the above corrective steps, do not have any passenger use the front-
passenger seat until the system has been repaired. Lights
i Display messages about LEDs:
This display message will only appear if all LEDs have failed. Display messages Possible causes/consequences and
0004 Solutions
0002
Check Left
Cornering
Light or
Check Right Cornering
Light The left or right-hand cornering light is defective.
X
Check whethe ryou are permitted to change the bulb yourself
(Y page 286).
or
X Visit a qualified specialist workshop. 0002
Check Left Low
Beam or
Check Right
Low Beam The left or right-hand low-beam headlamp is defective.
X
Check whether you are permitted to change the bulb yourself
(Y page 286).
or
X Visit a qualified specialist workshop. 0002
Check Rear Left
Turn
Signal or
Check Rear Right Turn
Signal The rear left-hand or rear right-hand turn signal is defective.
X
Check whether you are permitted to change the bulb yourself
(Y page 286).
or
X Visit a qualified specialist workshop. 0002
Check Front Left
Turn
Signal or
Check Front Right Turn
Signal The front left-hand or front right-hand turn signal is defective.
X
Check whether you are permitted to change the bulb yourself
(Y page 286).
or
X Visit a qualified specialist workshop. Display messages
405On-board computer and displays Z
Display messages Possible causes/consequences and
0004 Solutions
0002
Malfunction See
Oper. Manual The exterio
rlighting is defective.
X Visit a qualified specialist workshop. 0002
AUTO
Lamp Function
Inoperative The light sensor is defective.
X
Visit a qualified specialist workshop.
USA only:
X Switch off the daytime running lamps in the on-board computer
(Y page 387).
X Switch the lights on and off using the light switch. 0002
Please 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 000Eor000D.
or
X If the rear fog lamp is switched on: press the light switch in to
the stop. Adaptive High-beam
Assist Inoperative Adaptive Highbeam Assist is faulty.
X
Visit a qualified specialist workshop. Engine
Displa
ymessages Possible causes/consequences and
0004 Solutions
000D
Check Coolant
Level See Oper.
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 467).
X If coolant needs to be added more often than usual, have the
engine coolant system checked at a qualified specialist
workshop. 408
Displa
ymessagesOn-board computer and displays
Display messages Possible causes/consequences and
0004 Solutions
000C The fan motor is faulty.
X
At coolan ttemperatures under 248 ‡(120 †), drive to the next
qualified specialist workshop.
X Avoid subjecting the engine to heavy loads, e.g. driving in
mountainous terrain, and stop-and-go traffic. 000C
Coolant Low Stop
Vehicle Turn
Engine Off The coolant is too hot.
Aw
arning tone also sounds.
G WARNING
Do no tdrive when youre ngine is overheated. Thi scan cause some
fluids which may have leaked into the engine compartmen tto
catch fire.
Stea mfrom the overheated engine can also cause serious burns
which can occur just by opening the hood.
There is a risk of injury.
X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 327).
X Leave the vehicle and keep a safe distance from the vehicle until
the engine has cooled down.
X Make sure that the air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice.
X Do not start the engine again until the display message goes out
and the coolant temperature is under 248 ‡ (120 †).
Otherwise, the engine could be damaged.
X Pay attention to the coolant temperature display.
X If the temperature increases again, visit a qualified specialist
workshop immediately.
Under normal operating conditions and with the specified coolant
level, the coolant temperature may rise to 248 ‡ (120 †). Display messages
409On-board computer and displays Z
Display messages Possible causes/consequences and
0004 Solutions
0001
Clean fuel filter Vehicles with a diesel engine: there is water in the fuel filter. The
water mus
tbe drained off.
X Visit a qualified specialist workshop. 0001
Check
additive See
Operator's Manual The DEF tank is empty.
X
Have the DEFt ank filled as soon as possible at aqualified
specialist workshop (Y page 325).0001
Remaining starts:
16 The DE
Flevel has fallen to a minimum.
X Have the DEFt ank filled immediately at a qualified specialist
workshop (Y page 325). Driving systems
Display messages Possible causes/consequences and
0004 Solutions
0004
Attention Assist:
Drowsiness
detected Based on specific criteria, ATTENTION ASSIST
20
has determined
that the driver is tired or paying less attention. Awarning tone also
sounds.
X If necessary, take a break.
During long journeys, take regular breaks in good time so you get
enough rest. 0004
Attention Assist
Inoperative ATTENTION ASSIST
20
has failed.
X Visi taqualified specialist workshop. 0003
Night View Assist
Inoperative Night View Assist Plus is defective.
X
Visit a qualified specialist workshop. 0003
Night View Assist
Currently
Unavailable The temperature of the camera is too high.
X
Wait until you see the Night View Assist Available Again display message.
You can also:
X Fold the camera cover down (Y page 475).
X Adjust the air distribution of the automatic air conditioning
upwards. 20
Not available on hybrid vehicles. 412
Display messagesOn-board computer and displays
Display messages Possible causes/consequences and
0004 Solutions
0003
Night View Assist
Lights Must Be Set
to AUTO or ON Ac
ondition for activating Night View Assist Plus has not been
fulfilled.
X Turn the light switch to 000Dor000A. 0003
Night View Assist
Not In Reverse Gear Ac
ondition for activating Night View Assist Plus has not been
fulfilled.
X Shift the transmission to P,Nor D. 0003
Night View Assist
Lights ON or AUTO,
Not in R Gear Ac
ondition for activating Night View Assist Plus has not been
fulfilled.
X Turn the light switch to 000Dor000A.
X Shift the transmission to P,Nor D. 0003
Night View Assist
Only When It Is
Dark You have attempted to activate Night View Assist Plus in the
daytime.
Night View Assist Plus can only be activated when it is dark.
000C
Vehicle Rising Your vehicle is adjusting to the level you have selected.
000C
Vehicle Rising
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. 000C
STOP Car 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 (Y page 327).
X Wait until the display message disappears before pulling away. Display messages
413On-board computer and displays Z
Display messages Possible causes/consequences and
0004 Solutions
AIRMATIC is defective.
Awarning tone also sounds.
X Do not drive faster than 50 mph (80km/h).
X Make only sligh tsteering movements. Otherwise, the front
fender or the tires could be damaged if the steering movement
is too large.
X Liste nfor 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. 000C
Malfunction The AIRMATIC function is restricted. The vehicle's handling
characteristics may be affected.
X
Do not drive faster than 50 mph (80km/h).
X Visit a qualified specialist workshop. ABC
Malfunction Stop
Vehicle The ABC (Active Body Control) 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 Notify a qualified specialist workshop or breakdown service. The display message is shown continuously.
ABC is malfunctioning.
X
Do not drive faster than 50 mph (80km/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
Vehicle Rising
Please Wait Briefly The ABC vehicle level is too low when the vehicle is stationary.
X
Do not pull away.
The vehicle level is set when the display message disappears. 414
Display messagesOn-board computer and displays
Display messages Possible causes/consequences and
0004 Solutions
Parking Guidance
Canceled Parking Guidance is deactivated. Possible causes are:
R
the vehicle is skidding.
R the sensors are dirty.
R a malfunction has occurred.
X Reactivate Parking Guidance later ( Ypage 353).
If the parking space symbol does no tappear in the multifunction
display at speeds below 19 mph (30 km/h):
X Clean the sensors (Y page 474).
X Restart the engine.
If the parking space symbol still does not appear in the
multifunction display at speeds below 19 mph (30 km/h):
X Visit a qualified specialist workshop. Parking Guidance has been deactivated because you are no longer
following the recommended path.
X Park again and, while doing so, observe the display messages
in the multifunction display. Parking Guidance
Canceled The vehicle is parked.
Awarning tone also sounds.
The display message disappears automatically. DISTRONIC PLUS
Off DISTRONIC PLU
Shas been deactivated (Y page 336). If it was
deactivated automatically, a warning tone also sounds. DISTRONIC PLUS
Now Available DISTRONIC PLU
Sis operational againa fter having been
temporarily unavailable .You can now reactivate DISTRONIC PLUS
(Y page 336). Display messages
417On-board computer and displays Z
Display messages Possible causes/consequences and
0004 Solutions
Check
tire(s) The tire pressure in one or more tires has dropped significantly.
The wheel position is displayed in the multifunction display.
Aw
arning tone also sounds.
G WARNING
With tire pressures which are too low, there is a ris kofthe
following hazards:
R they may burst, especially as the load and vehicle speed
increase.
R they may wear excessively and/or unevenly, which may greatly
impair tire traction.
R the driving characteristics, as well as steering and braking, may
be greatly impaired.
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.
X Secure the vehicle against rolling away (Y page 327).
X If there is a flat tire, inspect the tires (Y page 479).
X Check the tire pressure (Y page 505).
X If necessary, correct the tire pressure. Caution,
tire defect The tire pressure in one or more tires has dropped suddenly. The
wheel position is shown in the multifunction display.
G WARNING
If you drive with a flat tire, there is a risk of the following hazards:
R A flat tire affects the ability to steer or brake the vehicle.
R You could lose control of the vehicle.
R Continued driving with a flat tire will cause excessive heat build-
up and possibly a fire.
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.
X Secure the vehicle against rolling away (Y page 327).
X If there is a flat tire, inspect the tires (Y page 479).Please correct
tire pressure(s) The tire pressure is too low in at least one of the tires, or the tire
pressure difference between the wheels is too great.
X
Check the tire pressures at the next opportunity. If necessary,
correct the tire pressure (Y page 505).
X Restart the tire pressure monitor (Y page 507).420
Display messagesOn-board computer and displays