See also:

Initialization after a power failure
After a power failure, it is only possible to raise the roof, if necessary. Have the system initialized by your service center. ...

Units of measure
You can change the units for fuel consumption, route/distance, temperature and pressure. 1.  "Settings" 2.  "Language/Units" 3.  Select the desired menu item. ...

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. ...