See also:

High-beam headlamps
To switch on the high-beam headlamps: turn the SmartKey in the ignition lock to position 2 or start the engine. Turn the light switch to or or . Press the combination switch beyond the ...

Unlocking the driver's door (mechanical key)
If the vehicle can no longer be unlocked with the SmartKey, use the mechanical key. If you use the mechanical key to unlock and open the driver's door, the anti-theft alarm system will be trigg ...

Transfer case
This section is only valid for vehicles with 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 ...