See also:

Maintenance
The battery is maintenance-free, i.e., the electrolyte will last for the life of the battery. Your service center will be glad to advise you on questions regarding the battery. ...

Malfunction
A message is displayed in the instrument cluster. HDC is not available, e.g., due to elevated brake temperatures. ...

Initializing
In rare cases, it may become necessary to initialize the Integral Active Steering. The warning lamp lights up. A Check Control message is displayed. 1. With the engine running, turn the steeri ...