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:

    Cross bar
    Points to observe before use The maximum roof load that can be used with additional accessories decreases by the dead weight of the crossbars (13.7 lbs/6.2 kg). Note that installing the crossb ...

    2011 Mercedes-Benz S-Class Review by Scott Burgess
    Luxury comes with nuances. Little things denote one fine ride: The look of the thread on the dashboard stitching, the smell of the leather, the crystal-like headlamps. Even the sound of the trun ...

    Cleaning instructions
    Do not touch the COMAND display. The display has a very sensitive high-gloss surface; there is a risk of scratching. If you have to clean the screen, however, use a mild cleaning agent and a ...