Important safety notes

Have the batteries changed at a qualified specialist workshop.

WARNING
Batteries contain toxic substances.
Swallowing batteries can lead to serious health issues or death.
Keep batteries out of the reach of children.
Seek medical attention immediately if a battery is swallowed.

WARNING
The SmartKey batteries contain perchlorate material, which may require special handling and regard for the environment. Observe government disposal guidelines. California residents, see www.dtsc.ca.gov/HazardousWaste/Perchlorate/index.cfm.

    See also:

    Canceling Active Parking Assist
    You can cancel Active Parking Assist at any time. – Stop the movement of the multifunction steering wheel or steer yourself. Active Parking Assist will be canceled at once. The Park Assist Can ...

    Resetting
    Reset the sliding sunroof if it does not move smoothly. - Turn the SmartKey to position 1 or 2 in the ignition lock. - Raise the sliding sunroof fully at the rear. - Keep the switch pressed ...

    Vehicle remote opening
    If you have unintentionally locked your vehicle (e.g. the SmartKey is still in the vehicle) and a replacement SmartKey is not available, the vehicle can be opened by a Mercedes-Benz Customer Assis ...