If there is a malfunction in the system or in the power supply.
If the HOLD function is deactivated by depressing the accelerator pedal or the brake pedal, e.g. by a vehicle occupant.
If the electrics in the engine compartment, the battery or the fuses are tampered with or if the battery is disconnected.
When Active Brake Assist, Active Distance Assist DISTRONIC or the HOLD function are activated, the vehicle brakes autonomously in certain situations.
To avoid damage to the vehicle, deactivate these systems in the following or similar situations:
The vehicle is stationary.
The driver's door is closed or the seat belt on the driver's side is fastened.
The engine is running or has been automatically switched off by the ECO start/stop function.
The electric parking brake is released.
Active Distance Assist DISTRONIC is deactivated.
The transmission is in position , or .
Active Distance Assist DISTRONIC is activated.
The transmission is switched to position .
The vehicle is secured with the electric parking brake.
The seat belt is unfastened and the driver's door is opened.
The engine is switched off.
There is a malfunction in the system or the power supply is insufficient.