54 12... Opening or closing glass slide/tilt sunroof (manually and in event of a technical fault)

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In event of a technical fault in drives:

Replace drive with gearing at front or rear. See REMOVING/INSTALLING/REPLACING DRIVE WITH GEARBOX (FRONT) or REMOVING/INSTALLING/REPLACING DRIVE WITH GEARBOX (REAR) .

Manually opening or closing:

Necessary preliminary work:

Remove ROOF SWITCH CLUSTER

Initiate manual movements of guide element via the drives using an offset hexagon socket key.