Adjusting the way the ACC responds
You can decide how sporty the response of the ACC should be:
—Select the desired gearbox program in the Assist systems menu of the Infotainment system.
Some settings can be stored in the user accounts of the personalisation function and therefore change
automatically when the user account changes (→ Personalisation).
Troubleshooting
ACC not available.
The indicator lamp lights up yellow.
—The radar sensor is dirty. Clean the radar sensor (→ Vehicle care, exterior).
—The radar sensor's range has been impaired by the weather, e.g. by snow, or residue/layers of cleaning agent.
Clean the radar sensor (→ Vehicle care, exterior).
—The radar sensor's range is obstructed by add-on parts, trim frame for number plate holders or stickers. Remove
any obstructions from the area around the radar sensor.
—The radar sensor has been displaced or damaged, e.g. due to damage to the front of the vehicle. Check whether
damage is visible (→ Repairs and technical modifications).
—Fault or malfunction. Switch off and restart the engine.
—Painting work or structural modifications have been performed on the front of the vehicle.
—If the problem persists, go to a qualified workshop.
ACC does not function as expected.
—The radar sensor is dirty. Clean the radar sensor (→ Vehicle care, exterior).
—The system limits have been exceeded (→ Adaptive Cruise Control (ACC)).
—The brakes have overheated, control was interrupted automatically. Leave the brakes to cool and check them
again.
—If the problem persists, go to a qualified workshop.
Control cannot be started.
Make sure the following conditions are met:
—A position has been selected for driving forward.
—The brake lights on the vehicle are working.
—The brake lights on the trailer are working.
—Electronic Stability Control is not regulating.
—The brake pedal is not depressed.
Unusual noises during automatic braking.
—This is normal and is not a fault.
222