51 31 200 Removing and installing/replacing rear window
Special tools required:
- Notes on window bonding
- GENERAL PROCEDURE for dismantling/installing bonded window glass
When reusing the rear window:
Avoid damaging lines for heated rear window/-aerial.
The following new parts/consumables are required.
| Material | Quantity |
|---|---|
| Rear window (with replacement) | 1 |
| Spacer buffer 5x5x20 mm | 9 |
| Small repair kit | 1 |
Necessary preliminary work:
- Remove TRIM PANEL FOR ROOF PILLAR at rear (C-pillar) left/right
- Remove AUXILIARY BRAKE LIGHT
Removal:
Unlock plug connection (1) and disconnect.
If necessary, release the cable holder (2).
Secure the cable on the rear window with adhesive tape.
Unlock plug connection (1) and disconnect.
Secure the cable on the rear window with adhesive tape.
Secure the tailgate (1) in a semi-open position with the tensioning strap (2).
Tape off area (A) on the left/right with the yellow plastic adhesive tape.
Slide the wire and/or string through the adhesive bead at the line (1).
Do not damage the sealant on the body while inserting the wire/string.
Cut out rear window.
Installation:
Fitting spacer buffers (spacers):
Completely remove the damaged spacer buffers (1).
Bond new spacer buffers (1) to the marks (2).
Overview of rear window bonding:
| Cut | A - A | B - B | C - C |
|---|---|---|---|
| a [mm] = Position adhesive bead | 8 ±1 | 7 ±1 | 12 ±1 |
| b [mm] = Width adhesive bead | 7 ±1 | 7 ±1 | 7 ±1 |
| h [mm] = Height adhesive bead | 12 ±1 | 12 ±1 | 12 ±1 |
Set the bead joint in the area (1).
Installation note:
Carefully perform the following steps with the rear window (1) using a suction lifter:
- Feed in under tailgate
- Mount on top and insert
- Center rear window to distances (A) and (B)
- secure in this position with yellow plastic adhesive tapes
A = 3.5 ± 1 mm
B = 4 ± 1 mm
Preload on top of windscreen to prevent wind noise:
Rear window (1) must be lower than roof outer skin (2). This is the only way to prevent wind noises.
Position special tool 51 0 010 in center of vehicle depending on dimension (A) and check underprotrusion of rear window (1).
A = 2.5 ± 0.8 mm
X = Measurement stages 1... 4 mm
Connect the connector (1).
Connect the connector (1).
Clip in the cable clip (2) as needed.
Remove the adhesive tape from the area (A) on the left/right.
Remove the tensioning strap (2).
Required follow-up work:
- Install the TRIM PANEL FOR THE ROOF PILLAR (C-pillar) left/right
- Install the AUXILIARY STOP LAMP