51 31 000 Removing and installing/renewing windscreen

Special tools required:

IMPORTANT: The following notes form the basis for these repair instructions and must be adhered to at all times:

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

NOTE: Removal is performed with ROLL OUT 2000 or SPIDER .

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

Material	Quantity
Windscreen	1
Windscreen cover (for replacement of windscreen)	1
Spacer 3.8x4x12.7 mm	4
Stop pad, half-round (h = 5 mm), from repair kit	5
Small repair kit	1
Sika Activator 205 (for windscreen cover)	1
In the case of replacement up to version (build date) 04/2012 with appropriate version: Rain/light/solar sensor or Rain/light/solar and condensation sensor	1

Necessary preliminary tasks:

Remove GUTTER STRIP on left and right
Remove COVER FOR COWL PANEL
Remove INSIDE MIRROR
REMOVE TRIM PANEL FOR ROOF PILLAR (A-PILLAR) on left and right
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. See 51 3 220 .

Fig 1: Identifying Windscreen Adhesive Bead

Courtesy of BMW OF NORTH AMERICA, INC.

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. See 51 3 220 .

Pull off adhesive tapes all round.

Fig 2: Moving Engine Compartment Lid Into Service Position

Courtesy of BMW OF NORTH AMERICA, INC.

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.

Fig 3: Identifying Windscreen Spacer Buffers

Courtesy of BMW OF NORTH AMERICA, INC.

*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.

Fig 4: Identifying Windscreen Tape

Courtesy of BMW OF NORTH AMERICA, INC.

If necessary, fit COVER/RUBBER FRAME (1) for windscreen.

Pre-treat adhesive area with Sika-Aktivator205.

Fig 5: Identifying Windscreen Rubber Frame

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Overview of windscreen bonding:

Fig 6: Identifying Windscreen Spacer Buffers

Courtesy of BMW OF NORTH AMERICA, INC.

a₁ = 23 mm 1 = bead joint (approx. 300 mm from edge of window glass)

a₂ = 7 mm 2 = window glass corner (measuring point for a₁ )

x = 60 mm

Cut	A - A	B - B	C - C
a [mm] = Position adhesive bead	1 +1	3 +1	3 +1
b [mm] = Width adhesive bead	8 ±2	8 ±2	8 ±2
h [mm] = Height adhesive bead	12 -2	12 -2	12 -2

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

250 mm

Fig 7: Identifying Plastic Adhesive Tapes
Courtesy of BMW OF NORTH AMERICA, INC.

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
Adjust gap dimensions (see next operation)
secure in terms of height in this position at top with two yellow plastic adhesive tapes (2)

Fig 8: Holding Window Glass
Courtesy of BMW OF NORTH AMERICA, INC.

Windscreen gap dimensions:

To avoid wind noises, the windscreen (1) must be lower than the roof outer skin (2).

Measure the short length (A) on the left and right using special tool 51 0 010 .

Rubber frame (3) must be even and in parallel to roof outer skin (2).

Fig 9: Identifying Windscreen Gap Dimensions

Courtesy of BMW OF NORTH AMERICA, INC.

	F25	F26
(A) with HUD	3 ± 1 mm	5 ± 1.5 mm
(A) without HUD	3.4 ± 1.5 mm	5.5 ± 1.5 mm

In the case of replacement with appropriate version:

Version up to 04/2012:

Install new rain/light/solar and (condensation) sensor . See 61 35 685 REPLACING RAIN/LIGHT SOLAR SENSOR or 61 35 688 REPLACING SOLAR RAIN/LIGHT SENSOR AND CONDENSATION SENSOR .

Version after 04/2012:

Remount RAIN-LIGHT-SOLAR AND (CONDENSATION SENSOR) .