Changing the battery

You require a CR 2025 3 V cell battery.

the 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 palm until battery 3 falls out. Repeatedly tap the SmartKey against your palm until battery 3 falls out.
positive terminal facing upwards. Use a lint-free cloth to do so. Insert the new battery with the positive terminal facing upwards. Use a lint-free cloth to do so.
battery is free from lint, grease and all other forms of contamination. Make sure that the surface of the battery is free from lint, grease and all other forms of contamination.
tray cover 1 and then press to close it. Insert the front tabs of battery tray cover 1 and then press to close it.
SmartKey. Insert the mechanical key into the SmartKey.
buttons on the vehicle. Check the function of all SmartKey buttons on the vehicle.

    See also:

    Cleaning the sensors
    – Clean sensors 1 of the driving systems with water, car shampoo and a soft cloth. When cleaning the sensors with a power washer, maintain a distance between the vehicle and the nozzle ...

    Resetting to factory settings
    For safety reasons, the Daytime Running Lights: function in the Lights submenu is only reset when the vehicle is stationary. – Press the or button on the steering wheel to select the Setting ...

    Operating video DVD
    – Switch on COMAND and select video DVD (see the separate operating instructions). – Press the or button on the steering wheel to select the Audio menu. DVD changer display (example) 1 Cur ...