See also:

Charging the battery
In the vehicle, only charge the battery via the terminals in the engine compartment, with the engine switched off. ...

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

Vehicle battery
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. Batt ...