Smart Key battery

See also:

Safety systems
Display messages (USA only) (Canada only) The red brake system warning lamp comes on while the engine is running. A warning tone also sounds. Possible causes/consequences and ► Soluti ...

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 sy ...

Important safety notes
Level control adapts the vehicle level automatically to the current operating and driving situation. This results in reduced fuel consumption and improved handling. For vehicles with ADS: when y ...