See also:

Cleaning the trailer tow hitch
The ball coupling must be cleaned if it becomes dirty or corroded. – Remove rust on the ball of the ball coupling, e.g. with a wire brush. – Remove dirt with a clean, lint-free cloth or a brus ...

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. ...

Superlative ride comfort, outstanding handling dynamics and excellent offroad performance
The AGILITY CONTROL suspension on which the Mercedes-Benz GLK-Class is founded displays a high level of flexibility and resolves a conflict of aims that particularly affects the SUV class, where c ...