See also:

Information on the navigation data
1. "Navigation" 2. Open "Options". 3. "Navigation system version": information on the data version is displayed. ...

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

Service booklet
Perform maintenance work at the service center, and record the work in the service booklet. The entries are proof of regular maintenance. ...