See also:

Decoupling a trailer
WARNING Vehicles with air suspension program: While you are coupling or decoupling a trailer, make sure nobody locks or unlocks the vehicle and/or opens or closes doors or the tailgate. The v ...

Activation conditions
You can activate the HOLD function if:  - the vehicle is stationary.  - the engine is running.  - the driver's door is closed or your seat belt is fastened.  - the p ...

System self-test
After you have switched on the ignition, the system carries out a self-diagnosis. WARNING A malfunction in the system has been detected if one of the following conditions occurs: • the indi ...