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. 00D9
Off Off The HOLD function is deactivated. the vehicle is skidding.
A warning tone also sounds.
X
Reactivate the HOLD function later (Y page 195).Radar Sensors Radar Sensors
Deactivated See Deactivated See
Operator's Manual Operator's Manual The radar sensor system is deactivated.
X
Switch on the radar sensor system (Y page 239).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. Night View Assist Plus is defective.
X
Visit a qualified specialist workshop. 262
Display
messagesOn-board computer and displays
Display messages Possible causes/consequences and
0050
0050Solutions Active Lane
Active Lane
Keeping Assist Keeping Assist
Currently Currently
Unavailable See Unavailable See
Operator's Manual Operator's Manual 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 dirt or snow.
When the causes stated above no longer apply, the display
message disappears.
Active Lane Keeping Assist is operational again.
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 Secure the vehicle against rolling away ( Ypage 175).
X Clean the windshield. Active Lane Active Lane
Keeping Assist Keeping Assist
Inoperative Inoperative Active Lane Keeping Assist is defective.
X
Visit a qualified specialist workshop. Active Blind Spot Active Blind Spot
Assist Currently Assist Currently
Unavailable See Unavailable See
Operator's Manual Operator's Manual 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 radar sensor 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 0063indicator lamps also light up in the exterior
mirrors.
When the causes stated above no longer apply, the display
message disappears.
Active Blind Spot Assist is operational again.
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 Secure the vehicle against rolling away ( Ypage 175).
X Clean the sensors (Y page 551).
X Restart the engine. Display
messages
263On-board computer and displays Z
Display messages Possible causes/consequences and
0050
0050Solutions Active Blind Spot
Active Blind Spot
Assist Inoperative Assist Inoperative Active Blind Spot Assist is defective.
The yellow
0063indicator lamps also light up in the exterior
mirrors.
X Visit a qualified specialist workshop. Park Assist Park Assist
Canceled Canceled The driver's door is open and the driver's seat belt has not been
fastened.
X
Repeat the parking process with the seat belt fastened and the
driver's door closed. You have inadvertently touched the multifunction steering wheel
while steering intervention was active.
X
While steering intervention is active, make sure that the
multifunction steering wheel is not touched unintentionally. The vehicle has started to skid and ESP
®
has intervened.
X Use Active Parking Assist again later (Y page 206).Park Assist Park Assist
Inoperative Inoperative You have just carried out a large number of turning or parking
maneuvers.
Active Parking Assist will become available again after
approximately ten minutes (Y
page 206).
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Switch off and restart the engine.
If the display message continues to be displayed:
X Visit a qualified specialist workshop. PARKTRONIC is defective.
X
Visit a qualified specialist workshop. Park Assist Park Assist
Finished Finished The vehicle is parked. A warning tone also sounds.
The display message disappears automatically.
DISTRONIC PLUS Off DISTRONIC PLUS Off DISTRONIC PLUS has been deactivated (Y
page 186).
If it was deactivated automatically, a warning tone also sounds. DISTRONIC PLUS
DISTRONIC PLUS
available again available again DISTRONIC PLUS is operational again after having been
temporarily unavailable. You can now reactivate DISTRONIC PLUS
(Y
page 186). 264
Display
messagesOn-board computer and displays
Display messages Possible causes/consequences and
0050
0050Solutions DISTRONIC PLUS
DISTRONIC PLUS
Currently Currently
Unavailable See Unavailable See
Operator's Manual Operator's Manual DISTRONIC PLUS is temporarily inoperative. Possible causes are:
R
function is impaired due to heavy rain or snow.
R the sensors in the radiator grill and the bumper are dirty.
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.
R the system is outside the operating temperature range.
R the on-board voltage is too low.
A warning tone also sounds.
When the causes stated above no longer apply, the display
message disappears.
DISTRONIC is operational again.
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 Secure the vehicle against rolling away ( Ypage 175).
X Clean the sensors in the radiator grill and the bumper
(Y page 551).
X Restart the engine. DISTRONIC PLUS DISTRONIC PLUS
Inoperative Inoperative DISTRONIC PLUS is defective.
BAS PLUS (Brake Assist PLUS) and PRE-SAFE
®
Brake may be
inoperative as well.
A warning tone also sounds.
X Visit a qualified specialist workshop. DISTRONIC PLUS DISTRONIC PLUS
Passive Passive 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 DISTRONIC PLUS
- - - mph - - - mph An activation condition for DISTRONIC PLUS is not fulfilled.
X
Check the activation conditions for DISTRONIC PLUS
(Y page 186). Display
messages
265On-board computer and displays Z
Display messages Possible causes/consequences and
0050
0050Solutions Cruise Control
Cruise Control
Inoperative Inoperative Cruise control is defective.
A warning tone also sounds.
X
Visit a qualified specialist workshop. Cruise Control Cruise Control
- - - mph - - - mph A condition for activating cruise control has not been fulfilled.
You have tried to store a speed 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 184). 266
Display
messagesOn-board computer and displays
Tires
Display messages Possible causes/consequences and
0050
0050Solutions Please Correct
Please Correct
Tire Pressure Tire Pressure 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 (Y page 583).
X If necessary, correct the tire pressure.
X Restart the tire pressure monitor (Y page 585).Check Check
Tires
Tires The tire pressure in one or more tires has dropped significantly.
The wheel position is displayed in the multifunction display.
A warning tone also sounds.
G WARNING
With tire pressures which are too low, there is a risk of the
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 175).
X Check the tires and, if necessary, follow the instructions for a
flat tire (Y page 557).
X Check the tire pressure (Y page 583).
X If necessary, correct the tire pressure. Display
messages
267On-board computer and displays Z
Display messages Possible causes/consequences and
0050
0050Solutions Warning
Warning
Tire Malfunction Tire Malfunction 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 ( Ypage 175).
X Check the tires and, if necessary, follow the instructions for a
flat tire (Y page 557). Tire Pressure Tire Pressure
Monitor Monitor
Currently Currently
Unavailable Unavailable Due to a source of radio interference, no signals can be received
from the 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. TirePress. TirePress.
Sensor(s) Missing Sensor(s) Missing There is no signal from the tire pressure sensor of one or several
wheels. The pressure of the affected tire is not displayed in the
multifunction display.
X
Have the faulty tire pressure sensor replaced at a qualified
specialist workshop. Tire Pressure Tire Pressure
Monitor Monitor
Inoperative No Inoperative No
Wheel Sensors 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. Tire Pressure Tire Pressure
Monitor Monitor
Inoperative Inoperative The tire pressure monitor is faulty.
X
Visit a qualified specialist workshop. 268
Display
messagesOn-board computer and displays
Vehicle
Display messages Possible causes/consequences and
0050
0050Solutions Shift
Shift
to
to'P'
'P' or
or'N'
'N'
to Start Engine
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. Apply Brake Apply Brake
to Shift from 'P' to Shift from 'P' You have attempted to move the transmission selector lever to
position
D,Ror Nwithout depressing the brake pedal.
X Depress the brake pedal. Auxiliary Battery Auxiliary Battery
Malfunction Malfunction The auxiliary battery for the automatic transmission is no longer
being charged.
X
Visit a qualified specialist workshop at the next opportunity.
X Until then, set the automatic transmission to position Pbefore
you switch off the engine.
X Before leaving the vehicle, apply the electric parking brake.
X Secure the vehicle against rolling away (Y page 175).Transmission Not Transmission Not
in P in P
Risk of Vehicle Risk of Vehicle
Rolling Away Rolling Away The driver's door is open and the transmission is in position
R,N
or D.
A warning tone also sounds.
X Shift the transmission to position P.
X Secure the vehicle against rolling away (Y page 175).Service Required, Service Required,
Do Do
Not
Not Shift
Shift Gears
Gears
Visit Dealer
Visit Dealer You cannot change the transmission position due to a malfunction.
A warning tone also sounds.
If transmission position
Dis selected:
X Drive to a qualified specialist workshop without shifting the
transmission from position D.
If transmission position R,Nor Pis selected:
X Notify a qualified specialist workshop or breakdown service. Only Shift to 'P' Only Shift to 'P'
when Vehicle when Vehicle
is Stationary is Stationary The vehicle is moving.
X
Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Shift the transmission to position P.0084 The trunk lid is open.
X
Close the trunk lid. Display messages
269On-board computer and displays Z