51 31 200 Removing and installing/replacing rear window
- Notes on window bonding. See 41 00... SAFETY AT WORK , 41 00... INFORMATION ON VEHICLE PROTECTION , 62 30... GENERAL NOTES ON THE HEAD-UP DISPLAY , 51 31... MATERIALS FOR BONDING WINDOW or 99 00... TOUCHING UP PAINTWORK DAMAGE .
- GENERAL PROCEDURE for dismantling/installation of affixed window glass
When reusing the rear window:
Avoid damaging lines for heated rear window/-aerial.
The following new parts/consumables are required (sourcing reference BMW Parts Department).
| Material | Quantity |
|---|---|
| Rear window (with replacement) | 1 |
| Spacer buffer 5x5x20 mm | 8 |
| Dual Lock/Velcro fastener on rear window | 4 |
| Dual Lock/Velcro fastener on tailgate | 4 |
| Small repair kit | 1 |
Necessary preliminary tasks:
- Remove REAR WINDOW WIPER MOTOR
Disconnect connector (1) on wave trap (2) on left/right and secure cable with adhesive tape to rear window.
Disconnect connector (4) on aerial amplifier (3) and secure cable with adhesive tape to rear window.
Push wire from ROLL OUT 2000 at line (1) through adhesive bead.
For details on how to proceed, refer to: WINDOW REMOVAL WITH ROLL OUT 2000 .
Slide protective cover (3) between rear window frame and body and secure with adhesive tape.
Attach fabric adhesive tape (5) at bottom between rear window and rear window frame.
Only replace:
Rear window is cut out with two different lengths of blade (risk of damage).
- Blade length 24 mm at top
- Blade length 45 mm at side
- Blade length 24 mm at bottom
Only replace:
Mount U-shape knife (sourcing reference: BMW Parts Department) on tool.
Regrind blade with a grinding stone while machine is running (new blades also).
Carefully insert knife between body aperture and rear window.
Guide web of knife parallel to rear window.
Cut through adhesive bead as closely as possible to rear window.
Installation of spacer buffers/Dual Locks (spacers):
Completely remove old spacer buffers (1) and Dual Locks (2).
Bond new spacer buffers (1) within the tabs.
Position of new Dual Locks (2) must be matched to position of Dual Locks on rear window.
- Spacer buffer (part number 2 996 980*)
- Dual Locks (part number 7 164 933*)
* Sourcing reference: BMW Parts Department
Overview of rear window bonding (F25):
| Cut | A - A | B - B | C - C |
|---|---|---|---|
| a [mm] = Position adhesive bead | 7, 5 ±1 | 14, 5 ±1 | 6 ±1 |
| b [mm] = Width adhesive bead | 8 ±2 | 8 ±2 | 8 ±2 |
| h [mm] = Height adhesive bead | 12 -2 | 12 -2 | 12 -2 |
- Bead joint
A tolerance band is printed on the ceramic (two dashed lines) that marks the position of the adhesive bead. Place the adhesive bead centrally on the tolerance band.
Aerial structure of rear window must not come into contact with adhesive.
Installation note:
Carefully working on rear window with SIPHON :
- install at top
- Align sides evenly
- install at bottom at distance (A) and press down
- engage in Dual Locks
Distance (A) of rear window bottom to tailgate edge:
- 3.9 ±1 mm
Replacement
Modify rubber grommet of wiper motor at rear window.