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.
See also:
Playing music
Music search
All tracks for which additional information has
been stored can be accessed by the music
search. Tracks without additional information
can be called up via the corresponding album
...
Deleting all stored programs
Press the left and right memory buttons for approx.
20 seconds until the LED flashes rapidly.
All stored programs are deleted.
The programs cannot be deleted individually. ...
Adjusting the height
▷ To raise: pull.
▷ To lower: press the button, arrow 1, and
push the head restraint down. ...