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.
- Check the battery in the SmartKey and replace it if necessary.
- Unlock the driver's door using the mechanical key.
- Lock the vehicle using the mechanical key.
- 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:

    Active Body Control reduces the effect of a crosswind
    The Mercedes-Benz CL-Class also meets the highest standards in terms of driving dynamics and agility. This is in part thanks to Direct-Steer, which can vary the steering ratio based on the steerin ...

    Vehicle data, GL 550
    The data stated here refers specifically to a vehicle with standard equipment. Consult an authorized Mercedes-Benz Center for the data for all vehicle variants and trim levels. ...

    Deactivating/activating ESP® (AMG vehicles)
    Activating/deactivating SPORT handling mode WARNING The SPORT handling mode should not be switched on during normal driving. Switching on the SPORT handling mode will result in the followin ...