Checking the battery

Press the or

button. Press the button. or 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.

You can obtain the battery at a qualified Changing the battery.

specialist workshop. You can obtain the battery at a qualified specialist workshop.

the signal reception range of the vehicle, 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:

    Menu overview
    The number of menus shown depends on the optional equipment in the vehicle. Function 1 Trip menu 2 Navi menu (navigation details) 3 Audio menu 4 Tel menu (telephone) 5 DriveAssist menu (assist ...

    Jump-starting
    WARNING Failure to follow these directions will cause damage to the electronic components, and can lead to a battery explosion and severe injury or death. Never lean over batteries while conne ...

    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 ...