General notes

If you cannot lock or unlock the vehicle with the SmartKey, either the battery in the SmartKey is discharged, the SmartKey is faulty or the starter battery is discharged.

SmartKey and replace it if necessary. Check the battery in the SmartKey and replace it if necessary.
mechanical key. Unlock the driver's door using the mechanical key.
mechanical key. Lock the vehicle using the mechanical key.
battery contacts checked at a qualified specialist workshop. Have the starter battery and the battery contacts checked at a qualified specialist workshop.

If the SmartKey is faulty, contact Roadside Assistance or a qualified specialist workshop.

    See also:

    Engine number
    Emission control information plate, including the certification of both federal and Californian emissions standards Engine number (stamped into the crankcase) VIN (on the lower edge of the ...

    SRS warning lamps
    SRS functions are checked regularly when you switch on the ignition and when the engine is running. Therefore, malfunctions can be detected in good time. The SRS warning lamp in the instrumen ...

    Important safety notes
    Service products include the following: - fuels (e.g. gasoline, diesel) - additives for exhaust gas aftertreatment (DEF) - lubricants (e.g. engine oil, transmission oil) - coolant - brake fluid ...