Removing and Installing Rear Window
51 31 200 Removing And Installing Rear Window
NOTE:
- When gluing the rear window, glues for cold and hot processing are permitted.
- Cover rear side panels with protective covers.
- Removing and installing both trim pieces for rear roof pillar.
Cold processing:
Comply with instructions on gluing windows.
Warm processing:
Open rear end of aluminum membrane in cartridge before installing in cartridge oven.
Heat glue cartridges to 80 °C for one hour in oven (sourcing reference: BMW Parts Service).
Comply with instructions on gluing windows.
Disconnect right plug connection (1) (wave trap).
Disconnect plug connection (1), release nut (2) and secure leads to rear window with adhesive tape.
Raise trunk lid by about 65 cm and hold in this position (e.g. attach welding wire with two hooks between lock and lockpin).
Remove seals (1).
Mask edges of trunk lid and all round body with fabric adhesive tape (e.g. Tesa).
1. Rear window
2. Glue bead
3. Body opening
4. Fabric adhesive tape
Fit knife (24 mm blade length, sourcing reference: BMW Parts Service) to the tool.
NOTE: If necessary, resharpen knife with machine running.
Carefully insert knife between body and top center of rear window.
Guide web of knife parallel to rear window.
CAUTION:
- When reusing the rear window:
- Avoid damaging lines for rear window heating/antenna.
- When cutting through the glue bead beside the trunk lid, it must be opened for a short period by a 2nd person (risk of damage).
Cut through glue bead all around as close as possible to the rear window glass.
1. Body opening
2. Glue bead
3. Knife
4. Rear window
Lift out rear window using special tool 51 3 010.
Cut off old glue in body opening but for a thickness of approx. 0.5 mm.
Cut off old glue carefully with an universal knife (sharp as a razor blade) to avoid damaging the paint finish in body opening.
Pull off adhesive tapes all round.
CAUTION: To provide long-term corrosion inhibition, damage to paintwork (scratches and large areas of damage) should always be touched up.
When reusing the rear window:
Remove glue residue on windshield with a scalpel (1) for heavy-duty applications to approx. 0.5 mm.
Fit seal (1) at top in center of rear window and press downwards.
NOTE: Sealing strip (1) and rear window are marked in center (2).
Secure cable (1) (rear window heating/antenna) with adhesive tape.
Treat rear window around glued area (A) with materials approved by BMW (repair kit, sourcing reference: BMW Parts Service).
NOTE: Note ventilation time.
Distance (A) from seal.
(A) = 15(-2) mm (top/side)
(A) = 20(-2) mm (bottom)
CAUTION:
- The basic filler must have hardened.
- Mask headlining on roof connection with paintwork masking tape.
Treat body in glued area with materials approved by BMW (repair kit, sourcing reference: BMW Parts Service).
NOTE: Note ventilation time.
CAUTION:
- Before setting new spacer buffers,
- remove remnants of old spacer buffers completely (broken rear window).
- Fit two spacer buffers at a distance (200 mm) from center of cowl panel.
Cut nozzle to size.
(A) 7 mm
(B) 12(+1) mm
NOTE: To apply uniform glue bead, use cartridge pistol, operated with compressed air or electric power.
Note expiry date of glue.
If applicable, produce a sample bead before gluing.
Cartridge must be arranged vertically against rear window.
CAUTION:
- Version with rear window antenna:
- No glue must come into contact with the connection contacts of the rear window heating/antenna.
Shape of glue bead:
(A) 7 mm
(B) 12(+1) mm
CAUTION: Apply glue bead quickly and insert window. Skin formation time of glue, maximum 10 minutes.
Maintain distance (A), (B) and (C) between glue bead and seal.
(A) 2 mm
(B) 2 mm
(C) 8 mm
NOTE: Adhesive area for plastic adhesive tapes must be free of grease and dust.
Attach two yellow plastic adhesive tapes (Tesa) to roof at a distance (250 mm) from outer corners.
Length: 400 mm
Width: 50 mm
Install rear window carefully using special tool 51 3 010. The gasket must make uniform contact all round (center). Press rear window upwards until gasket is at uniform distance from roof all round.
Secure rear window in this position at top with two yellow plastic adhesive tapes (Tesa).
Length: 400 mm
Width: 50 mm
Distance from outer corners approx. 100 mm.
CAUTION:
- Remove dirt from residual glue with Sika-Entferner 208 (sourcing reference: BMW Parts Service) before glue is hard. Do not press out rear window glass again for this purpose.
- Hardened glue can only be removed by machine.
Assemble car.
After the hardening time, remove adhesive tapes.
NOTE: Leaks are localized by spraying under the sealing lips or by using an ultrasonic leak tester (sourcing reference: BMW Parts Service) and are sealed using an appropriate nozzle.