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. ...

Reference
This chapter contains technical data, short commands for the voice activation system, and an index that will quickly take you to the information you need. ...

Have diesel exhaust fluid refilled
This exhaust fluid is refilled by your service center during regular maintenance. If you adhere to this maintenance schedule, it is usually not necessary to refill any fluids between the mainten ...