See also:

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. ...

Central locking system
The concept The central locking system becomes active when the driver's door is closed. The system simultaneously engages and releases the locks on the following: Doors. Trunk lid. Fuel ...

Switching the high beams on and off manually
High beams on, arrow 1. High beams off/headlamp flasher, arrow 2. To reactivate the High-beam Assistant, press the button on the turn signal lever. ...