Winter operation

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 trigger ...

Headlamps fogged up on the inside
The headlamps may fog up on the inside if there is high atmospheric humidity. ■ Switch on the lights and drive off. The level of moisture diminishes, depending on the length of the journey ...

Off-road driving systems
4MATIC (permanent four-wheel drive) If you fail to adapt your driving style, 4MATIC can neither reduce the risk of accident nor override the laws of physics. 4MATIC cannot take account of road, we ...