See also:

How the occupant classification system works
The Occupant Classification System (OCS) categorizes the occupant on the frontpassenger seat by means of a weight sensor. The front-passenger front air bag is deactivated automatically for certain ...

Cleaning the exterior lighting
  Clean the plastic lenses of the exterior lights with a wet sponge and a mild cleaning agent, e.g. Mercedes-Benz car shampoo or cleaning cloths. Only use cleaning agents or cleaning ...

Cup holder in the rear seat armrest
! Do not sit on or support your body weight on the rear seat armrest when it is folded down, as you could otherwise damage it. ! Close the cup holder before folding the rear seat armrest up. Ot ...