See also:

Switching off automatically
System switches off: above approx. 9 mph/ 15 km/h. Switch on the system again if necessary. ...

General information
The engine oil consumption is dependent on the driving style and driving conditions. Therefore, check the engine oil level after every refueling using the electronic engine oil level check. ...

Issued warning
If you leave the lane and if a lane marking has been detected, the steering wheel begins vibrating. If the turn signal is set before changing the lane, a warning is not issued. ...