See also:

Cleaning the wiper blades
WARNING   Before cleaning the windshield or wiper blades, switch off the windshield wipers and remove the SmartKey from the ignition lock. On vehicles with KEYLESS-GO, press the Start/S ...

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 ...

Trailer towing
When towing a trailer and driving downhill, shift to the lower gear if the automatic transmission constantly shifts between two gears. Engaging a lower gear and reducing the speed reduces the ...