See also:

Replacing the rear window wiper blade
Removing the wiper blade ► Remove the SmartKey from the ignition lock. ► Fold wiper arm 1 away from the rear window until it engages. ► Position wiper blade 2 at a right angle ...

Ruts and gravel roads
Observe the following rules when driving along ruts in off-road terrain or on roads with loose gravel: Check that the ruts are not too deep and that your vehicle has sufficient clearance. ...

Cleaning genuine wood and trim elements
  Wipe the wooden trim and trim pieces with a damp, lint-free cloth, e.g. a microfiber cloth.   Heavy soiling: use car care and cleaning products recommended and approved by Mercede ...