See also:

Setting the side air vents
To open/close: turn thumbwheel 3 up or down. Side window defroster vent 1 is never completely shut, even if side air vent 2 is shut ...

Transfer case
This section is only valid for vehicles with 4- wheel drive (4MATIC). Power is always transmitted to both axles. Performance tests may only be carried out on a 2-axle dynamometer. The brake sy ...

Headlamps fogged up on the inside
The headlamps may fog up on the inside if there is high atmospheric humidity. Drive with the headlamps switched on. The level of moisture diminishes, depending on the length of the journey and ...