See also:

Replacing the windshield wiper blades
Removing the wiper blades Remove the SmartKey from the ignition lock or turn it to position 0 (KEYLESS-GO). Fold the wiper arm away from the windshield until it engages. Set the wiper blade ...

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. ...

Transfer case
The vehicle has permanent 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 system or transfer ca ...