Removing and Installing/Replacing Roof Crossbar

54 34 380 - Removing and installing/replacing roof crossbar





Necessary preliminary tasks:
- Remove guide rail panel
- Remove convertible top fabric partially Removing and Installing/Replacing Left or Right Guide Rail Panel
- Remove roofliner Service and Repair from roof crossbar
- Unlock retaining hook 54 34 133 - Removing and installing/replacing left or right roofliner in convertible top





Removing left/right tension straps if necessary (dependent on build date):
Release screw (1).
Remove tension strap from roof crossbar.
If feeding out wiring harness (3) at a later stage, if necessary detach felt strip (2) carefully from roof crossbar.

Installation:
Reattach felt strip (2).





Remove all Hall sensors:
Release screws on following Hall sensors and remove:
1. Hall sensor detects folding sunroof closed
2. Hall sensor detects maximum opening of folding sunroof
3. Hall sensor checks unlocking of retaining hook

Note:
Release screw on Hall sensor sleeve to access Hall sensor (2 & 3).

Unlock plug connection (5) and disconnect.

Disconnect all cable ties.
Feed out wiring harness (4).





Release screws (1).
Carefully lift link (2) from frame over threaded bushes.
Disengage roof crossbar from frame.





Installation:
1. Ring disk
2. Eccentric bush
3. Locking pin
4. Screw
Bush must not rest on ring disk (inclination).
Eccentric bush must have contact with roof crossbar through ring disk.
Turn eccentric bush into position and insert locking pin.
Insert screws with Loctite.
Tightening torque 54 34 7AZ .





Replacement only:
- Insert eccentric bush
- Turn bore to 12 o'clock position
- Drill new hole for locking pin in roof crossbar (2 mm drill bit)
- Insert locking pin with Loctite





Installation:
- Adjust 54 34 Motor-Driven Convertible Top (Electrical Components) Hall sensors
- Check Adjustments function of EH convertible top