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

•► 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

•► 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:

    De-authorizing (de-registering) a Bluetooth® device
    Mercedes-Benz USA, LLC recommends deauthorization in both COMAND and the Bluetooth® device, e.g. the mobile phone. Subsequent authorization may otherwise fail. In the Bluetooth® device list, se ...

    Tailgate emergency release
    If the tailgate can no longer be opened from outside the vehicle, use the emergency release on inside of the tailgate. Take the mechanical key out of the SmartKey (). To open the tailgate com ...

    View through the camera
    The area behind the vehicle is displayed in a mirror-inverted manner, as in the rear-view mirror. WARNING The rear view camera is only an aid and may display obstacles - from a distorted per ...