See also:

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 ...

Trailer towing
PARKTRONIC is deactivated for the rear area when you establish an electrical connection between your vehicle and a trailer. Fold in the ball coupling if the trailer tow hitch is not requir ...

Outstanding handling on and off-road
4MATIC - the permanent four-wheel drive from Mercedes-Benz - provides the GL-Class with superior handling whatever the conditions. Together with the standard-fit AIRMATIC air suspension, the preci ...