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.
If the battery is disconnected.
If Active Brake Assist, Distance Pilot DISTRONIC or the HOLD function is activated, the vehicle brakes automatically 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.
Distance Pilot DISTRONIC is not activated.
Vehicles with automatic transmission: The transmission is in position , or .
If Distance Pilot DISTRONIC has been activated.
Vehicles with automatic transmission: When transmission position is selected.
When the vehicle is secured with the electric parking brake.
When the seat belt is unfastened and the driver's door is opened.
When the engine is switched off.
When there is a malfunction in the system or if the power supply is insufficient.
Vehicles with manual transmission:
The HOLD function is deactivated.
A horn sounds at regular intervals if you turn off the engine, remove your seat belt and open the driver's door while the HOLD function is activated. If you attempt to lock the vehicle, the horn tone becomes louder. The vehicle cannot be locked until you have deactivated the HOLD function.
Once you have switched off the engine, you cannot restart the engine until you have deactivated the HOLD function.