See also:

Deleting all stored programs
Press the two outer memory buttons for approx. 20 seconds until the LED flashes rapidly. All stored programs are deleted. The programs cannot be deleted individually ...

Long-term vehicle storage
Your service center can advise you on what to consider when storing the vehicle for longer than three months. ...

Leather care
Remove dust from the leather often, using a cloth or vacuum cleaner. Otherwise, particles of dust and road grime chafe in pores and folds, and lead to increased wear and premature degradation o ...