Smart Key functions

See also:

Cleaning the windows
WARNING   Before cleaning the windshield or wiper blades, switch off the windshield wipers and remove the SmartKey from the ignition lock. On vehicles with KEYLESS-GO, press the Start/S ...

Cleaning the headliner and carpets
•► Roof lining: use soft brushes or dry shampoo if it is particularly dirty. •► Carpets: use carpet and textile cleaners that have been approved and recommended by Mercedes-Benz. ...

Adding DEF
WARNING Make sure  - DEF does not come into contact with skin, eyes, or clothing  - to keep DEF out of the reach of children If you and/or others have come into contact with D ...