See also:

Using the rear center seat belt
If the left-hand rear seat backrest is folded down and back up again, the rear center seat belt may lock. The seat belt can then not be pulled out. To release the rear center seat belt: pull out ...

Setting the center air vents
1 Fixed center air vent 2 Center air vent, right 3 Center vent thumbwheel, right 4 Center vent thumbwheel, left 5 Center air vent, left To open/close: turn thumbwheels 3 and 4 up or ...

Cleaning the steering wheel and gear or selector lever
– Thoroughly wipe with a damp cloth or use leather care agents that have been recommended and approved by Mercedes- Benz. ...