Replacing Folding Sunroof Mechanism (Slider Plate With Drive Cable)

54 34 181 - Replacing folding sunroof mechanism (slider plate with drive cable)





Important!
If the drive shafts are torn, it is no longer possible to effect emergency release of the locking hooks via the folding sunroof drive unit.
Always replace both mechanisms with drive shafts.
Always conduct convertible top movements with the assistance of a second person (risk of damage).
Make sure force is always exerted uniformly to the convertible top sides otherwise the frame will be bent.





Necessary preliminary tasks:
- Open complete side windows
- Remove drive unit for folding sunroof Removing and Installing/Replacing Drive Unit for Folding Sunroof
- Open convertible top lock Emergency Release of Convertible Top Fastener in Event of Faulty Folding Sunroof Drive Cable if drive shafts are faulty
- Remove inner trim for guide rail Removing and Installing/Replacing Inner Trim For Left or Right Guide Rail
Folding sunroof can now be opened manually.
Slide front bow towards rear:
- Remove front bow Removing and Installing Front Bow
- Remove front seal Removing and Installing/Replacing Front Left or Right Seal





Release screw (1).
Release screws (3).

Note:
Feed out locking hook towards bottom.

Release screw (2).

Remove detent element (4).

Installation Note:
Insert screws and tighten down as follows:
1. Screw (1)
2. Screw (2)
3. Screws (3)





Pull mechanism (1) with/without drive shafts out of guide rail.





Removing torn drive shafts from roof crossbar:
Install drive unit Removing and Installing/Replacing Drive Unit for Folding Sunroof.
Insert offset hexagon socket and strike attachment with ball of hand until clutch can be felt to snap into place.
Remove drive shaft(s) from roof crossbar by turning hexagon socket.





Overview of mechanism for folding sunroof:
1. Input shaft
2. Coding
3. Articulated lever
4. Slider plate





Installation Note:
Turn slider plate upwards through 360°.





Installation Note:
Spring (2) must be engaged under control arm (1).





Important!
Spring (2) is ineffective if it is not engaged under control arm (1).
Risk of damage to and clicking noises issuing from mechanism!





Feed drive shaft (1) into guide rail and slide in.
Push slide element (2) onto guide rail.
Bend articulated lever (3) flat. Articulated lever and drive shaft form a line (dashed/dotted line).
Push in slider plate (4) completely up to end stop and thus align parallel to opposite side.





Replacement only:
If slider plates with rollers (1) or roller and slider (2) are replaced by slider plates with sliders (3), then detent elements (4) must also be replaced.
Risk of damage to slider plates!





Note:
Add final details to vehicle.
Carry out function check Component Tests and General Diagnostics.