51 31 000 Removing and installing front windscreen

Remove front lid.

Remove interior rearview mirror, refer to 51 16 060 REMOVING AND INSTALLING OR REPLACING INTERIOR REARVIEW MIRROR .

If necessary, remove rain sensor, refer to 61 35 175 REMOVING AND INSTALLING/REPLACING RAIN SENSOR .

Remove both sun visors and counter supports, refer to 51 16 080 REMOVING AND INSTALLING OR REPLACING SUN VISOR AND LEFT OR RIGHT COUNTER SUPPORT .

Remove both panels for front roof pillar (A-pillar finishers), refer to 51 43 201 REMOVING AND INSTALLING OR REPLACING TRIM FOR FRONT LEFT OR RIGHT ROOF .

Remove cowl panel cover (task is described in Removing wiper console), refer to 61 61 270 REMOVING AND INSTALLING COMPLETE WIPER CONSOLE .

Cold Processing: 

Comply with instructions on gluing windows, refer to 51 31... INSTRUCTIONS ON GLUING WINDSCREEN .

Warm Processing: 

Open aluminum membrane at rear end of cartridge.

Place cartridge in cartridge oven.

Heat glue cartridges to 80° C for one hour in oven.

Comply with instructions on gluing windows, refer to 51 31... INSTRUCTIONS ON GLUING WINDSCREEN 51 31... REMOVING WINDSCREEN WITH "ROLL OUT 2000" 

Lower front headlining slightly.

Remove seal (1) for left/right windshield/side panel.

Remove grommets (1) for cover finisher on windshield.

Remove gasket from windshield.

Mask body all round with fabric adhesive tape (e.g. Tesa).

1. Windshield
2. Glue bead
3. Body opening
4. Fabric adhesive tape
   Fig 5: Masking Body All Round With Fabric Adhesive Tape

   Courtesy of BMW OF NORTH AMERICA, INC.

Fit knife 24 mm length blade to the cutting tool.

Carefully insert knife between body and windshield.

Guide handle of knife parallel to windshield.

Cut through glue bead all around and as close as possible to windscreen glass.

1. Body opening
2. Glue bead
3. Knife
4. Windshield
   Fig 9: Cutting Through Glue Bead

   Courtesy of BMW OF NORTH AMERICA, INC.

Lift out the windscreen using special tool 51 3 010.

Pull off adhesive tapes all round.

Immediately before installing windshield:

Remove glue residue in body cutout to approx. 0.5 mm.

To avoid damaging paintwork in body cutout, carefully remove glue residue with a scalpel.

When reusing the windshield:

Remove glue residue on windshield with a scalpel (1) for heavy-duty applications to approx. 0.5 mm.

Stick on 1 spacer buffer (2) in each case in center and at distances (A) and (B) from center of cowl panel.

Dimensions:

1. 486 mm
2. 446 mm
3. 6 mm

1. Windshield
2. Spacer buffer
3. Glue bead
4. Expanding foam tape
5. Windshield
   Fig 14: Stick On Spacer Buffers As Illustrated

   Courtesy of BMW OF NORTH AMERICA, INC.

Fit new expanding foam tape (4) over gap (1) between acoustic insulation (2) and windshield panel (3) from left to right. There must be enough space for the glue bead in the middle between the expanding foam tape (4) and spacer section (5).

Treat windshield at distance (A, B, C) to edge of windshield across width of approx. 20 mm with materials approved by BMW repair kit, refer to 51 31... INSTRUCTIONS ON GLUING WINDSCREEN .

1. 7 mm
2. 5 mm
3. 5 mm

Fit gasket to windshield and press firmly into place.

Cut nozzle to size:

1. 8 mm
2. 11_-2 mm

Check expiry date of glue!

If necessary, apply a test bead before gluing.

Cartridge must be held perpendicularly to the windscreen glass.

Shape of glue bead:

1. 8 mm
2. 11_-2 mm

Apply glue bead at distance (A, B, C) along edge of windshield.

1. 10 mm
2. 8 mm
3. 8 mm
   Fig 20: Applying Glue Bead Along Edge Of Windshield

   Courtesy of BMW OF NORTH AMERICA, INC.

Attach two yellow plastic adhesive tapes (1) to roof at distance (A) from outer corners:

1. Length: 400 mm
2. Width: 50 mm

A = 250 mm

Using special tool 51 3 010, first position windshield at top, align evenly at sides, then install at bottom and press into place.

Press windshield upwards until seal on roof abuts uniformly.

Secure windshield in this position on top with two yellow plastic adhesive tapes (1) (Tesa).

The windshield is pretensioned at the top to prevent wind noises.

Pretension is generated with special tool 51 3 130 (three HR foam blocks).

1 piece (1): 40 x 70 x 70 mm (W x H x D)

2 pieces (2): 40 x 30 x 70 mm (W x H x D)

Position of HR foam blocks:

HR foam block (1), middle, at distance (A) from top.

HR foam blocks (2), distance (A) from top and distance (B) at sides.

1. 100 mm
2. 100 mm

Preload On Top Of Windshield To Prevent Wind Noise: 

When installing windshield (4), make sure that it lies lower to roof outer skin (1). This is the only way of ensuring sufficient preload between the sealing lip (2) and the roof (prevention of wind noise). Check installation position of windshield (4) in middle of vehicle with special tool 51 3 210; a clearance (A) is permitted.

Dimensions:

Standard windows = designation "N":

(A) = 0 -1.5 mm

Anti-theft windows = designation "S":

(A) = 0 - 0.6 mm

Open both front doors.

Secure HR foam blocks (2) with plastic adhesive tape (1) (Tesa).

Pretension windshield with plastic adhesive tape (1) (Tesa) until it is correctly positioned at top (see previous work step).

Assemble car.

After hardening time, remove support.