See also:

Notes on technical data
The data stated here specifically refers to a vehicle with standard equipment. Consult an authorized Mercedes-Benz Center for the data for all vehicle variants and trim levels. ...

Setting the side air vents
- To open/close: turn thumbwheel 3 up or down. ...

Parking the vehicle for a long period
If you leave the vehicle parked for longer than four weeks, the battery may be damaged by exhaustive discharge. Connect a trickle charger. You can obtain information about trickle chargers ...