Checking the battery

•► Press the or

•► Press the button. or The battery is working properly if battery button.

The battery is working properly if battery check lamp 1 lights up briefly If battery check lamp 1 does not light up briefly during the test, the battery is discharged.

•► Changing the battery

You can obtain the battery at a qualified specialist workshop.

i If the SmartKey battery is checked within the signal reception range of the vehicle, pressing the button locks or or unlocks the vehicle. button locks or unlocks the vehicle.

    See also:

    General information
    The ECO start/stop function is only available for the S 63 AMG. The ECO start/stop function is only available in drive program C. The ECO start/stop function switches the engine off automatica ...

    Notes for 4MATIC vehicles
    Vehicles with 4MATIC must not be towed with either the front or the rear axle raised, as doing so will damage the transmission. If the vehicle has transmission damage or damage to the front or r ...

    Important safety notes
    WARNING When leaving the vehicle, always remove the SmartKey from the ignition lock. Always take the SmartKey with you and lock the vehicle. Do not leave children unsupervised in the vehic ...