See also:

4MATIC (permanent four-wheel drive)
4MATIC ensures that all four wheels are permanently driven. Together with ESP®, it improves the traction of your vehicle whenever a drive wheel spins due to insufficient grip. WARNING If a ...

Automatic headlamp mode
X To switch on automatic headlamp mode: turn the light switch to or . SmartKey in position 1 in the ignition lock: the parking lamps are switched on or off automatically depending on the brightn ...

Problems with the SmartKey
Problem Possible causes/consequences and Solutions You cannot lock or unlock the vehicle using the SmartKey. The SmartKey battery is discharged or nearly discharged. - ...