Changing the battery
You require a CR 2025 3 V cell battery.
•► Take the mechanical key out of the SmartKey
•► Press mechanical key 2 into the opening in the SmartKey in the direction of the arrow until battery tray cover 1 opens.
When doing so, do not hold cover 1 shut.
•► Remove battery tray cover 1.
•► Repeatedly tap the SmartKey against your palm until battery 3 falls out.
•► Insert the new battery with the positive terminal facing upwards. Use a lint-free cloth to do so.
•► Make sure that the surface of the battery is free from lint, grease and all other forms of contamination.
•► Insert the front tabs of battery tray cover 1 and then press to close it.
•► Insert the mechanical key into the SmartKey.
•► Check the function of all SmartKey buttons on the vehicle.
See also:
Active Driving Assistance package
General notes
The Active Driving Assistance package
consists of DISTRONIC PLUS
Active Blind Spot Assist an
Active Lane Keeping Assist. ...
Tire pressure monitor warningmessages
If the tire pressure monitor detects a
significant pressure loss on one or more tires,
a warning message is shown in the
multifunction display. A warning tone also
sounds and the tire pressure war ...
Activating/deactivating airrecirculation mode
You can deactivate the flow of fresh air if unpleasant odors are entering the
vehicle from outside. The air already inside the vehicle will then be recirculated.
WARNING
Fogged windows impair ...