Page 417 of 542

Display messages Possible causes/consequences and
0004 Solutions
ABC
Malfunction The ABC 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. 0002
Off The HOLD function is deactivated. the vehicle is skidding.
Aw
arning tone also sounds.
X Reactivate the HOLD function later (Y page 346). The HOLD function is deactivated. When the brak
epedal is firmly
depressed, an activation condition is not fulfilled.
Aw arning tone also sounds.
X Check the activation conditions for the HOLD function
(Y page 346). Radar Sensors
Deactivated See
Oper. Manual The radar sensor system is deactivated.
X
Switch on the radar sensor system (Y page 389).Lane Keeping
Assist Currently
Unavailable See
Operator's Manual
or
Active Lane Keeping Assist
Currently
Unavailable See
Operator's Manual Lane Keeping Assist or Active Lane Keeping Assist is deactivated
and temporarily inoperative. 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.
R there are no lane markings for a longer period.
R the lane markings are worn, dark or covered, e.g .by dir tors now.
If the display message does not disappear:
X Pull ove rand stop the vehicle safely as soo nas possible, paying
attention to road and traffic conditions.
X Apply the electric parking brake.
X Cleant he windshield.
If the system detects that the camera is fully operational, the
display message disappears.
Lane Keeping Assist or Active Lane Keeping Assist is operational
again. Lane Keeping
Assist
Inoperative or
Active Lane Keeping Assist
Inoperative Lane Keeping Assist or Active Lane Keeping Assist is defective.
X
Visit a qualified specialist workshop. Display messages
415On-board computer and displays Z
Page 418 of 542

Display messages Possible causes/consequences and
0004 Solutions
Blind Spot Assist
Currently
Unavailable See
Operator's Manual
or
Active Blind Spot Assist
Currently
Unavailable See
Operator's Manual Blind Spot Assist or Active Blind Spot Assist is temporarily
inoperative. Possible causes are:
R
the sensors are dirty.
R function is impaired due to heavy rain or snow.
R the rada rsensor system is outside the operating temperature
range.
R the radar sensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio
stations or other sources of electromagnetic radiation.
The yellow 000Aindicator lamps also light up in the exterior
mirrors.
If the display message does not disappear:
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Apply the electric parkin gbrake.
X Clean the sensors (Y page 474).
X Restart the engine.
If the system detects that the sensors are fully operational, the
display message disappears.
Blind Spot Assist or Active Blind Spot Assist is operational again. Blind Spot Assist
Inoperative or
Active Blind Spot Assist Inoperative Blind Spot Assist or Active Blind Spot Assist is defective.
The yellow
000Aindicator lamps also light up in the exterior
mirrors.
X Visi taqualified specialist workshop. Parking Guidance
Inoperative Parking Guidance is malfunctioning (
Ypage 353).
X Restart the engine.
If the display message continues to be displayed:
X Visit a qualified specialist workshop. 416
Display messagesOn-board computer and displays
Page 419 of 542

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
Page 420 of 542

Display messages Possible causes/consequences and
0004 Solutions
DISTRONIC PLUS
Currently
Unavailable See
Operator's Manual DISTRONIC is deactivated and temporarily inoperative. Possible
causes are:
R
the DISTRONIC PLUS cover in the radiator trim is dirty
R function is impaired due to heavy rain or snow.
R the sensors in the bumpers are dirty.
R the rada rsensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio
stations or other sources of electromagnetic radiation.
R the system is outside the operating temperature range.
R The on-board voltage is too low.
Aw arning tone also sounds.
If the display message does no tdisappear:
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 Clean the DISTRONIC PLUS cover in the radiator trim
(Y page 474).
X Clean the bumpers (Y page 474).
X Restar tthe engine.
If the system detects that the sensors are fully operational, the
display message disappears.
DISTRONIC is operational again. DISTRONIC PLUS
Inoperative DISTRONIC PLUS is defective. BAS PLUS (Brake Assist PLUS) and
PRE-SAFE
®
Brake may be inoperative as well.
Aw arning tone also sounds.
X Visi taqualified specialist workshop. DISTRONIC PLUS
Override You have depressed the accelerator pedal. DISTRONIC PLUS is no
longer controlling the speed of the vehicle.
X
Remove your foot from the accelerator pedal. DISTRONIC PLUS
--- mph An activation condition for DISTRONIC PLUS is not fulfilled.
X
Check the activation conditions for DISTRONIC PLUS
(Y page 336). 418
Display messagesOn-board computer and displays
Page 421 of 542

Display messages Possible causes/consequences and
0004 Solutions
Cruise Control
Inoperative Cruise control is defective.
Aw
arning tone also sounds.
X Visi taqualified specialist workshop. Cruise Control
--- mph Ac
ondition for activating cruise control has not been fulfilled.
You have tried to store aspeed below 20 mph (30 km/h), for
example.
X If conditions permit, drive faster than 20 mph (30 km/h) and
store the speed.
X Check the activation conditions for cruise control
(Y page 334). Tires
Display messages Possible causes/consequences and
0004 Solutions
tire pressures
displayed after
driving a few
minutes The tire pressure monitor is measuring the tire pressure.
X
Drive on.
The tire pressures appear in the multifunction display after you
have been driving for a few minutes. tire press. monitor
inoperative The tire pressure monitor is faulty.
X
Visit a qualified specialist workshop. tire press. monitor
inoperative No
wheel sensors The wheels mounted do not have a suitable tire pressure sensor.
The tire pressure monitor is deactivated.
X
Mount wheels with suitable tire pressure sensors.
The tire pressure monitor is activated automatically after driving
for a few minutes. Display messages
419On-board computer and displays Z
Page 422 of 542

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
Page 423 of 542

Display messages Possible causes/consequences and
0004 Solutions
Wheel sensor(s)
missing There is no signal from the tire pressure sensor of one or several
wheels. The pressure of the affected tire is no tdisplayed in the
multifunction display.
X Have the faulty tire pressure sensor replaced at a qualified
specialist workshop. tire press. monitor
currently
unavailable Due to a source of radio interference, no signals can be received
fro
mt he wheel sensors. The tire pressure monitor is temporarily
malfunctioning.
X Drive on.
The tire pressure monitor restarts automatically as soon as the
problem has been solved. 0019
tire pressure
Caution, tire
defect The tire pressure in one or more tires has dropped suddenly.
Aw
arning tone also sounds.
G WARNING
If you drive with a flat tire, there is a ris kofthe 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). Display messages
421On-board computer and displays Z
Page 424 of 542

Display messages Possible causes/consequences and
0004 Solutions
0019
tire pressure
Check tire(s) The tire pressure in one or more tires has dropped significantly.
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. 0019
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).Vehicle
Display messages Possible causes/consequences and
0004 Solutions
Shift to P or N
to Start Engine You have attempted to start the engine with the transmission in
position
Ror D.
X Shift the transmission to position Por N. Auxiliary Battery
Malfunction
(White display
message) The auxiliary battery for the automatic transmission is no longer
being charged.
X
Visit a qualified specialist workshop. 422
Display messagesOn-board computer and displays