Driving systems

Display messages Possible causes/consequences and Solutions Solutions
Based on specific criteria, ATTENTION ASSIST has determined that the Based on specific criteria, ATTENTION ASSIST has determined that the driver is tired or paying less attention. A warning tone also sounds.
If necessary, take a break.
During long journeys, take regular breaks in good time so you get enough rest.
ATTENTION ASSIST has failed. ATTENTION ASSIST has failed.
Visit a qualified specialist workshop.
Night View Assist Plus is defective. Night View Assist Plus is defective.
Visit a qualified specialist workshop.
The temperature of the camera is too high. The temperature of the camera is too high.
display message. Wait until you see the Night View Assist Available Again display message.
You can also:
Fold the camera cover down.
Adjust the air distribution of the automatic air conditioning upwards.
A condition for activating Night View Assist Plus has not been A condition for activating Night View Assist Plus has not been fulfilled.
or . Turn the light switch to or . or .
A condition for activating Night View Assist Plus has not been A condition for activating Night View Assist Plus has not been fulfilled.
Shift the transmission to P, N or D.
A condition for activating Night View Assist Plus has not been A condition for activating Night View Assist Plus has not been fulfilled.
or . Turn the light switch to or . or Shift the transmission to P, N or D..

Shift the transmission to P, N or D.
You have attempted to activate Night View Assist Plus in the You have attempted to activate Night View Assist Plus in the daytime.
Night View Assist Plus can only be activated when it is dark.
Your vehicle is adjusting to the level you have selected. Your vehicle is adjusting to the level you have selected.
The vehicle level is too low when the vehicle is stationary. A The vehicle level is too low when the vehicle is stationary. A warning tone also sounds.
Do not pull away.
The vehicle level is set when the display message disappears.
You have pulled away while the vehicle level is still 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.
attention to road and traffic conditions. Pull over and stop the vehicle safely as soon as possible, paying attention to road and traffic conditions.
Apply the electric parking brake.
Wait until the display message disappears before pulling away.
  Risk of accident

AIRMATIC is defective. A warning tone also sounds.
Do not drive faster than 50 mph (80 km/h).
the tires could be damaged if the steering movement is too large. Make only slight steering movements. Otherwise, the front fender or the tires could be damaged if the steering movement is too large.
Listen for scraping sounds.
traffic conditions, and select a higher vehicle level. 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.
Visit a qualified specialist workshop.
Risk of accidentThe AIRMATIC function is restricted. The Risk of accident

The AIRMATIC function is restricted. The vehicle's handling characteristics may be affected.
Do not drive faster than 50 mph (80 km/h).
Visit a qualified specialist workshop.
The ABC (Active Body Control) vehicle level is too low. The ABC (Active Body Control) vehicle level is too low.
attention to road and traffic conditions. 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.
attention to road and traffic conditions. Do not continue driving under 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.
Notify a qualified specialist workshop or breakdown service.
The display message is shown continuously.
ABC is malfunctioning.
Do not drive faster than 50 mph (80 km/h).
the tires could be damaged if the steering movement is too large. Make only slight steering movements. Otherwise, the front fender or the tires could be damaged if the steering movement is too large.
Listen for scraping sounds.
Visit a qualified specialist workshop.
The ABC vehicle level is too low when the vehicle is stationary. The ABC vehicle level is too low when the vehicle is stationary.
Do not pull away.
The vehicle level is set when the display message disappears.
The ABC function is restricted. The vehicle's handling The ABC function is restricted. The vehicle's handling characteristics may be affected.
Do not drive faster than 50 mph (80 km/h).
Visit a qualified specialist workshop.
The HOLD function is deactivated. The vehicle is skidding. The HOLD function is deactivated. The vehicle is skidding.
A warning tone also sounds.
Reactivate the HOLD function later.
The HOLD function is deactivated. When the brake pedal is firmly depressed, an activation condition is not fulfilled.
A warning tone also sounds.
Check the activation conditions for the HOLD function.
The radar sensor system is deactivated. The radar sensor system is deactivated.
Switch on the radar sensor system.
Lane Keeping Assist or Active Lane Keeping Assist is deactivated and Lane Keeping Assist or Active Lane Keeping Assist is deactivated and temporarily inoperative if:
• the windshield is dirty in the camera's field of vision.
• visibility is impaired due to heavy rain, snow or fog.
• there are no lane markings for a longer period.
• the lane markings are worn, dark or covered, for example by dirt or snow.
Lane Keeping Assist or Active Lane Keeping Assist is operational again and the display message disappears if:
• the dirt (e.g. slush) drops away while the vehicle is in motion.
• the system recognizes that the camera is fully operational again.
If the display message continues to be displayed:
Clean the windshield.
Lane Keeping Assist or Active Lane Keeping Assist is defective. Lane Keeping Assist or Active Lane Keeping Assist is defective.
Visit a qualified specialist workshop.
Blind Spot Assist or Active Blind Spot Assist is temporarily Blind Spot Assist or Active Blind Spot Assist is temporarily inoperative if:
• the sensors are dirty.
• its function is impaired due to heavy rain or snow.
• the radar sensor system is outside the operating temperature range.
• 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 also light up in the exterior mirrors. indicator lamps also light up in the exterior mirrors.
Blind Spot Assist or Active Blind Spot Assist is operational again and the display message disappears if:
• the dirt (e.g. slush) drops away while the vehicle is in motion.
• the system detects that the sensors are fully available again.
• the radar sensor system is back within the operating temperature range.
If the display message continues to be displayed:
Clean the sensors.
Restart the engine.
Blind Spot Assist or Active Blind Spot Assist is defective. Blind Spot Assist or Active Blind Spot Assist is defective.
The yellow also light up in the exterior mirrors. indicator lamps also light up in the exterior mirrors.
Visit a qualified specialist workshop.
Parking Guidance is malfunctioning. Parking Guidance is malfunctioning.
Restart the engine.
If the display message continues to be displayed:
Visit a qualified specialist workshop.
Parking Guidance has been deactivated because: Parking Guidance has been deactivated because:
• the vehicle is skidding.
• the sensors are dirty.
• a malfunction has occurred.
Reactivate Parking Guidance later.
If the parking space symbol is not displayed in the multifunction display when you are driving at a speed of less than 19 mph (30 km/h):
Clean the sensors.
Restart the engine.
If the parking space symbol is still not displayed in the multifunction display when you are driving at a speed of less than 19 mph (30 km/h):
Visit a qualified specialist workshop.
Parking Guidance has been deactivated because you are no longer following the recommended path.
multifunction display. Park again and, while doing so, observe the display messages in the multifunction display.
The vehicle is parked. A warning tone also sounds. The vehicle is parked. A warning tone also sounds.
The display message disappears automatically.
DISTRONIC PLUS has been deactivated. If it was deactivated DISTRONIC PLUS has been deactivated. If it was deactivated automatically, a warning tone also sounds.
DISTRONIC PLUS is operational again after having been temporarily DISTRONIC PLUS is operational again after having been temporarily unavailable. You can now reactivate DISTRONIC PLUS.
DISTRONIC PLUS is deactivated and is temporarily inoperative if: DISTRONIC PLUS is deactivated and is temporarily inoperative if:
• the DISTRONIC PLUS cover in the radiator grill is dirty.
• its function is impaired due to heavy rain or snow.
• the sensors in the bumpers are dirty.
• 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 system is outside the operating temperature range.
• the on-board voltage is too low.
A warning tone also sounds.
DISTRONIC PLUS is operational again and the display message disappears if:
• the dirt (e.g. slush) drops away while the vehicle is in motion.
• the system detects that the sensors are fully available again.
• the system is within the operating temperature range.
If the display message continues to be displayed:
Clean the DISTRONIC PLUS cover in the radiator grill.
Clean the bumpers.
Restart the engine.
DISTRONIC PLUS is defective. BAS PLUS (Brake Assist PLUS) and DISTRONIC PLUS is defective. BAS PLUS (Brake Assist PLUS) and PRE-SAFE® Brake may be inoperative as well.
A warning tone also sounds.
Visit a qualified specialist workshop.
You have depressed the accelerator pedal. DISTRONIC PLUS is no You have depressed the accelerator pedal. DISTRONIC PLUS is no longer controlling the speed of the vehicle.
Take your foot off the accelerator pedal.
An activation condition for DISTRONIC PLUS is not fulfilled. An activation condition for DISTRONIC PLUS is not fulfilled.
Check the activation conditions for DISTRONIC PLUS.
Cruise control is defective. Cruise control is defective.
A warning tone also sounds.
Visit a qualified specialist workshop.
A condition for activating cruise control has not been fulfilled. A condition for activating cruise control has not been fulfilled.
You attempted to save a speed of less than 20 mph (30 km/h).
the speed. If the situation allows, drive faster than 20 mph (30 km/h) and save the speed.
Check the activation conditions for cruise control.
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