54 12 211 Removing and installing complete glass slide/tilt sunroof (frame)

Necessary preliminary tasks: 

• Remove HEADLINING

Installation note: 

• Powerlok screws must be replaced and must not  be reused
• Powerlok screws are mechanical screw locks with trilobular threads

Unlock plug connection (1) from front drive and disconnect.

Fig 1: Identifying Front Drive Plug Connection

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Unlock plug connections (1) and disconnect.

Unclip all cable clips.

Installation note: 

If necessary, replace cable clips.

Fig 2: Locating Plug Connections

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Fig 3: Locating Front And Rear Drain Hoses

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• Pull off front and rear water drain hoses.
• Helper must hold glass slide/tilt sunroof to prevent it falling out.
• Release screws in marked area and carefully lower glass slide/tilt sunroof.

Installation note:

Screws have different lengths:

Im Bereich (1) = 17 mm

Im Bereich (2) = 23 mm

• Carefully remove glass slide/tilt sunroof from vehicle (through rear door).

  Installation note: 

  Replace screws.

  To stop squeaking noises, secure all screws (1) prior to installation with plastic washers (2).

  If the standard screws can no longer grip, use "repair screws" (have larger threads).

  Fig 4: Identifying Plastic Washers With Screw

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  Fig 5: Stopping Glass Slide/Tilt Sunroof And Body Using Special Tool 54 1 110

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Installation note:

To align glass slide/tilt sunroof to body aperture, insert screws and tighten loosely.

Glass slide/tilt sunroof must still be able to move in the body aperture.

On account of leaks, glass slide/tilt sunroof must be exactly aligned to body aperture.

Insert special tool 54 1 110 into centering bores up to stop in glass slide/tilt sunroof and body.

Tighten down screws.

Tightening torque: see 2AZ in 54 12 MECHANICAL COMPONENTS, SLIDE/TILT SUNROOF .

INITIALIZE  glass slide/tilt sunroof.