SmartKey functions
See also:
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
s ...
Windshield washer system and headlamp cleaning system
The washer fluid reservoir is used for both the windshield washer system and
the headlamp cleaning system.
Vehicle components and their service products must match. You should, therefore,
only ...
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.
...
