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Home >> BMW >> 2001 >> 740i >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Body Equipment - Repair Instructions >> Front and Rear Window >> 51 31 000 Removing and installing windshield (Protection) >> Warm Processing:

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.

Fig 1: Heating Glue Cartridges
G03226624

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

NOTE: Cover engine compartment (top) and side panels with protective covers.

Lower front headliner slightly.

Disconnect left and right plug connections for windshield heating and fix cable to windshield.

Fig 2: Identifying Left And Right Plug Connections For Windshield Heating
G03226625

Mark area of cable entries on windshield.

Fig 3: Identifying Mark Area Of Cable Entries On Windshield
G03226626

Partially remove seal and let it hang down.

Fig 4: Removing Seal
G03226627

Lift out expanding rivets and pull finisher (1) upwards to remove.

Seal hose connection for windshield wash nozzles on hood lid.

Fig 5: Lifting Out Expanding Rivets And Pulling Finisher
G03226628

Removal: 

Removal of windshield is described separately from installation.

Assembly sequence for removal and installation is different.

CAUTION: Seal is reinforced with aluminum strip. Turning carefully, wind seal out (windshield breakage).
Fig 6: Removing Windshield
G03226629

Mask body all around with fabric adhesive tape.

  1. Windshield.
  2. Glue bead.
  3. Body aperture.
  4. Fabric adhesive tape.
    Fig 7: Identifying Windshield, Glue Bead, Body Aperture And Fabric Adhesive Tape
    G03226630
CAUTION: When reusing the windshield: Do not damage wires for windshield heating.

Fit knife (24 mm blade length to the tool.

NOTE: If necessary, resharpen knife with machine running.
Fig 8: Identifying Knife Blade And Tool
G03226631

Carefully insert knife between body and windshield.

Fig 9: Inserting Knife Between Body And Windshield
G03226632

Guide handle of knife parallel to windshield.

Fig 10: Identifying Handle Of Knife Parallel To Windshield
G03226633

Cut through glue bead as close as possible to windshield in area of A-pillar on left and right and roof edge.

  1. Body aperture.
  2. Glue bead.
  3. Knife.
  4. Windshield (illustration does not correspond to actual glass thickness)
    Fig 11: Identifying Body Aperture, Glue Bead, Knife And Windshield
    G03226634

Fit knife (36 mm blade length) to the tool.

NOTE: If necessary, resharpen knife with machine running.
Fig 12: Identifying Knife Blade And Tool
G03226635

Carefully insert knife at cowl panel between body and windshield.

Guide handle of knife parallel to windshield.

Fig 13: Identifying Guide Handle Of Knife Parallel Windshield
G03226636

Cut through adhesive bead as close as possible to windshield in area of cowl panel.

Suspend special tool 51 9 002 (suction lifter) from conventional workshop lifting equipment.

Switch on vacuum pump.

Firmly attach special tool 51 9 002 to outside of windshield in center in upper third.

Fig 14: Attaching Special Tool 51 9 002 To Outside Of Windshield
G03226637
CAUTION: Follow operating instructions for special tool 51 9 002. The pointer of the vacuum gauge must be in the green area. Do not shorten connecting hose between suction hoist and vacuum pump (minimum length 5 m). Replacement with original hose only.
Fig 15: Identifying Pointer Of The Vacuum Gauge
G03226638

Raise windshield slightly with suction hoist. If necessary, remove any residual traces of bonding carefully.

Fig 16: Raising Windshield Slightly With Suction Hoist
G03226639

Lift out windshield and place on assembly stand.

Switch off vacuum pump.

Pull off adhesive masking tape all around.

CAUTION: To ensure long-term corrosion protection, it is absolutely essential to repair paintwork damage (scratches and large surface damage), refer to 51 31 ... REMOVING WINDSCREEN WITH "ROLL OUT 2000" .
CAUTION: The basic filler must have hardened!

Treat body around glued area with BMW-approved materials (repair kit), refer to 51 31 ... REMOVING WINDSCREEN WITH "ROLL OUT 2000" .

NOTE: Note specified ventilation time!
Fig 17: Identifying Windshield
G03226640

Installation: 

Installation of windshield is described separately from removal.

Assembly sequence for removal and installation is different.

Installation check on reused and new windshields:

When installing a new windshield:

CAUTION: Static charge! Unroll protective foil on outside and inside, do not pull off.

Place windshield on support pedestal with inside facing upwards.

When reusing the windshield:

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

Fig 18: Identifying Scalpel
G03226641

Fit seal (1) to top of windshield and press into place.

NOTE: Seal (1) and windshield are marked in the center (2).

(3) Mirror base

Fig 19: Identifying Center On Windshield
G03226642

Secure cable (1) (rear window heating) with adhesive tape.

Treat windshield in glued area (A) with materials approved by BMW (repair kit), refer to 51 31 ... REMOVING WINDSCREEN WITH "ROLL OUT 2000" .

  1. = 21 mm.
NOTE: Note specified ventilation time!
Fig 20: Removing Windscreen
G03226643

Immediately before installing windshield:

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

NOTE: Cut off old glue carefully with a heavy-duty scalpel to avoid damaging the paint finish in body cutout.
Fig 21: Cutting Off Old Glue Carefully With A Heavy-Duty Scalpel
G03226644
CAUTION: Clean freshly cut residual bead with alcohol only. Do not under any circumstances use Sika bonding agent 205/5 or glass primer 205/5.