51 31 000 Removing and Installing/Renewing Windscreen

51 31 000 Removing And Installing/Renewing Windscreen







Special tools required:
- 51 0 300
- 51 0 010







IMPORTANT:
The following notes form the basis for these repair instructions and must be adhered to at all times:
- Notes on window bonding
- General procedure for dismantling/installation of affixed window glass

NOTE: Removal is performed with Roll Out 2000. Only use an oscillating blade when replacing the windscreen.







The following new parts / consumables are required (sourcing reference BMW Parts Department).












Necessary preliminary work:
- Remove gutter strip on left and right
- Remove cover for cowl panel
- Remove inside mirror
- Unlock and disconnect all plug connections on windscreen.
- Cover front side panels with protective covers.







IMPORTANT: Tape off body in area of piercing point with fabric adhesive tape.

Push wire from Roll Out 2000 along line (1) through adhesive bead (2).
For details on how to proceed, refer to: Window Removal with "Roll Out 2000".
Lift out windscreen with suction cup.







Only replace:
Mount U shape knife (sourcing reference: BMW Parts Department) on tool:
24 mm blade length for sides and top
36 mm blade length for bottom and bottom/sides
Regrind blade with a grinding stone while machine is running (new blades also).
Carefully insert blade between body aperture and windscreen.
Guide handle of knife parallel to windscreen.
Cut through adhesive bead as closely as possible to windscreen.







NOTE:
- When cutting is carried out at the bottom, the engine compartment lid must be in the service position.
- Wires and hoses remain connected.

Move engine compartment lid into service position.
Cut through windscreen adhesive bead at bottom.
Lift out windscreen with suction cup.
Pull off adhesive tapes all round.







Fitting spacer buffers (spacers):

IMPORTANT:
- To avoid windscreen breakage and wind noises:
- Completely remove remnants of removed spacer buffers (1) and (2) and maintain installation location exactly.

Spacer* (1) and semicircular spacer buffer** (2) must be mounted centrally so that they cover the embossed marks on sheet metal flange.
*Spacer 3.8x4x12.7 mm
**Semicircular spacer buffer from repair kit







Installation note:
If necessary, replace defective expanding foam tape (1).

IMPORTANT: Just before the windscreen is installed, press down expanding foam tape (1) using special tool 51 0 300 or reattach expanding foam tape (1). An expanding foam tape (1) that has become relaxed could change the position of the adhesive bead and thereby lead to wind noise or windscreen leaks.







If necessary, fit cover/rubber frame (1) for windscreen.

Overview for windscreen bonding (F25):












NOTE: Adhesive area for plastic adhesive tapes (1) must be free from grease and dust.

Stick two yellow plastic adhesive tapes (1) to roof at distance (A) from outside corners.
Length: 400 mm
A = 250 mm







Perform the following steps carefully on windscreen (1) using siphon:
- position windscreen first at top
- Align sides evenly
- then insert at bottom and press down
- press upwards until sealing rests evenly on roof
- secure in terms of height in this position at top with two yellow plastic adhesive tapes (2)







Preload on top of windscreen to prevent wind noise:
Windscreen (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 middle of vehicle depending on dimension (A) and check underprotrusion of windscreen (1).
Windscreen underprotrusion (A):

A = 3.4 ± 1.5 mm (without HUD)
3 ± 1 mm (with HUD)

X = Measurement stages 1... 4 mm







In the case of replacement with appropriate version:

Version up to 04/2012:
Install new rain/light/solar and (condensation) sensor.

Version after 04/2012:
Modify rain/light/solar and (condensation) sensor.