Resetting

Reset the sliding sunroof if it does not move smoothly.

•► Turn the SmartKey to position 2 in the ignition lock.

•► Raise the sliding sunroof fully at the rear.

•► Keep the another switch pressed for another second.

•► Make sure that the sliding sunroof can be fully opened and closed again.

•► If this is not the case, repeat the steps above again.

If the sliding sunroof still cannot be opened or closed fully after resetting, contact a qualified specialist workshop.

    See also:

    Locking the vehicle (mechanical key)
    If the vehicle can no longer be locked with the SmartKey, use the mechanical key. - Open the driver's door. - Close the front-passenger door, the rear doors and the tailgate. - Press the lockin ...

    The M-Class also protects its occupants after a crash
    As part of the POST-SAFE® functions, the new M-Class can activate a variety of systems which can contribute towards avoiding post-accident risks. After a more serious crash, the hazard warning lig ...

    Important safety notes
    WARNING For reasons of safety, have the NECK-PRO head restraints/NECK-PRO luxury head restraints checked at an authorized Mercedes-Benz Center after a rear-end collision. WARNING When p ...