See also:

Tone control
You can alter various tone settings, e.g. treble and bass or the speed-dependent volume increase. The tone settings are applied to all audio sources. The settings are stored for the remote control ...

Malfunction
A Check Control message is displayed. Adaptive light control is malfunctioning or has failed. Have the system checked as soon as possible. ...

Replacing the battery
The remote control for Comfort Access contains a battery that will need to be replaced from time to time. 1. Take the integrated key out of the remote control. 2. Remove the cover. Remove t ...