The vehicle is stationary.
The engine is running or it has been automatically switched off by the ECO start/stop function.
The driver is seated and belted.
The electric parking brake is released.
Vehicles with automatic transmission: the selector lever is in position , or .
Active Distance Assist DISTRONIC is deactivated.
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 brake pedal, e.g. by a vehicle occupant.
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 HOLD function is activated. You can release the brake pedal.
If depressing the brake pedal the first time does not activate the HOLD function, wait briefly and then try again.
The HOLD function is deactivated in the following situations:
Vehicles with automatic transmission: the automatic transmission of your vehicle shifts to after some time. This relieves the load on the service brake.
When the HOLD function is activated, the automatic transmission automatically shifts to in the following situations:
The driver leaves the driver's seat.
The driver's door is opened.
The engine is switched off without the ECO start/stop function.