See also:

Cleaning the wheels
Do not use acidic wheel cleaning products to remove brake dust. This could damage wheel bolts and brake components. Do not park the vehicle for an extended period straight after cleaning ...

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 ...

Starting the engine
Important safety notes WARNING   Inhalation of exhaust gas is hazardous to your health. All exhaust gas contains carbon monoxide (CO), and inhaling it can cause unconsciousness and poss ...