51 31 000 Removing and installin by chenshu

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									                                                            51 31 000            Removing and installing front windscreen



                                                            Note:
                                                                To bond windshield:
                                                                Adhesives for cold and hot working are permitted.
                                                                Remove front lid,
                                                                refer to 41 61 000.
                                                                Remove interior rearview mirror,
                                                                refer to 51 16 060.
                                                                If necessary, remove rain sensor,
                                                                refer to 61 35 175.
                                                                Remove both sun visors and counter supports,
                                                                refer to 51 16 080.
                                                                Remove both panels for front roof pillar (A-pillar finishers),
                                                                refer to 51 43 201.
                                                                Remove cowl panel cover (task is described in Removing
                                                                wiper console),
                                                                refer to 61 61 270.


                                                            Cold processing:
                                                            Comply with instructions on gluing windows,
                                                            refer to 51 31 ...




                                                            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 (sourcing
                                                            reference: BMW Parts Service).
                                                            Comply with instructions on gluing windows,
                                                            refer to 51 31 ...




RA Removing and installing front windscreen                                              BMW AG - TIS               30.08.2009 20:45
Issue status (01/2005) Valid only until next CD is issued                                Copyright                         Page - 1 -
                                                            Note:
                                                                Cover engine compartment (top) and side panels with
                                                                protective covers.

                                                            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.




RA Removing and installing front windscreen                                             BMW AG - TIS                30.08.2009 20:45
Issue status (01/2005) Valid only until next CD is issued                               Copyright                          Page - 2 -
                                                            Mask body all round with fabric adhesive tape (e.g. Tesa).
                                                            1.   Windshield
                                                            2.   Glue bead
                                                            3.   Body opening
                                                            4.   Fabric adhesive tape




                                                            Fit knife (24 mm blade length, sourcing reference: BMW Parts
                                                            Service) to the tool.

                                                            Note:
                                                                 Resharpen knife with machine running.




                                                            Carefully insert knife between body and windshield.




                                                            Guide handle of knife parallel to windshield.




RA Removing and installing front windscreen                                             BMW AG - TIS              30.08.2009 20:45
Issue status (01/2005) Valid only until next CD is issued                               Copyright                        Page - 3 -
                                                            Cut through glue bead all around and as close as possible to
                                                            windscreen glass.
                                                            1.   Body opening
                                                            2.   Glue bead
                                                            3.   Knife
                                                            4.   Windshield




                                                            Lift out the windscreen using special tool 51 3 010.
                                                            Pull off adhesive tapes all round.




                                                            Caution!
                                                                 To ensure long-term corrosion protection, it is absolutely
                                                                 essential to repair paintwork damage (scratches and large-
                                                                 surface damage),
                                                                 refer to 51 31 ...




                                                            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.

                                                            Caution!
                                                                 Clean freshly cut residual bead with 2-Propanol only,
                                                                 do not under any circumstances use Sika bonding agent
                                                                 205/5.




RA Removing and installing front windscreen                                            BMW AG - TIS                30.08.2009 20:45
Issue status (01/2005) Valid only until next CD is issued                              Copyright                          Page - 4 -
                                                            When reusing the windshield:
                                                            Remove glue residue on windshield
                                                            with a scalpel (1) for heavy-duty applications
                                                            to approx. 0.5 mm.




                                                            Caution!
                                                                 The basic filler must have hardened!

                                                            Treat body around glued area with BMW-approved materials
                                                            (repair kit, sourcing reference: BMW Parts Service),
                                                            refer to 51 31 ...

                                                            Note:
                                                                 Note ventilation time!




                                                            Stick on 1 spacer buffer (2) in each case in center and at
                                                            distances (A) and (B) from center of cowl panel.
                                                            Dimensions:
                                                            (A) 486 mm
                                                            (B) 446 mm
                                                            (C) 6 mm
                                                            1.   Windshield
                                                            2.   Spacer buffer
                                                            3.   Glue bead
                                                            4.   Expanding foam tape
                                                            5.   Windshield




RA Removing and installing front windscreen                                               BMW AG - TIS            30.08.2009 20:45
Issue status (01/2005) Valid only until next CD is issued                                 Copyright                      Page - 5 -
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, sourcing reference: BMW Parts Service),
                                                            refer to 51 31 ...
                                                            (A) 7 mm
                                                            (B) 5 mm
                                                            (C) 5 mm

                                                            Note:
                                                                Note ventilation time!

                                                            Fit gasket to windshield and press firmly into place.




RA Removing and installing front windscreen                                              BMW AG - TIS               30.08.2009 20:45
Issue status (01/2005) Valid only until next CD is issued                                Copyright                         Page - 6 -
                                                            Cut nozzle to size.
                                                            (A) 8 mm
                                                            (B) 11-2 mm

                                                            Note:
                                                                For an even application of adhesive bead:
                                                                Use a cartridge gun (operated pneumatically or electrically,
                                                                sourcing reference: BMW Parts Service).
                                                                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:
                                                            (A) 8 mm
                                                            (B) 11-2 mm

                                                            Caution!
                                                                Apply glue quickly and insert windshield.
                                                                Skin formation time of glue, maximum 10 minutes.




                                                            Apply glue bead at distance (A, B, C) along edge of windshield.
                                                            (A) 10 mm
                                                            (B) 8 mm
                                                            (C) 8 mm




RA Removing and installing front windscreen                                            BMW AG - TIS              30.08.2009 20:45
Issue status (01/2005) Valid only until next CD is issued                              Copyright                        Page - 7 -
                                                            Note:
                                                                Adhesive area for plastic adhesive tapes (1) must be free of
                                                                grease and dust.

                                                            Attach two yellow plastic adhesive tapes (1) (sourcing reference:
                                                            BMW Parts Service)
                                                            to roof at distance (A) from outer corners.
                                                            Length: 400 mm
                                                            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.
                                                            (A) 100 mm
                                                            (B) 100 mm
Preload on top of windshield to prevent wind noise:




RA Removing and installing front windscreen                                              BMW AG - TIS              30.08.2009 20:45
Issue status (01/2005) Valid only until next CD is issued                                Copyright                        Page - 8 -
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).

                                                            Note:
                                                                Do not stick plastic adhesive tape (1) above A-pillar
                                                                finisher (3) or ITS head airbag.




RA Removing and installing front windscreen                                            BMW AG - TIS                30.08.2009 20:45
Issue status (01/2005) Valid only until next CD is issued                              Copyright                          Page - 9 -
                                                            Caution!
                                                                Remove dirt from residual glue with Sika-Entferner 208
                                                                (sourcing reference: BMW Parts Service) before glue is hard.
                                                                Do not press out windscreen glass again for this purpose.
                                                                Hardened glue can only be removed by machine.




                                                            Assemble car.
                                                            After hardening time, remove support.

                                                            Note:
                                                                Leaks are detected by spraying water under the sealing lips or
                                                                by using an ultrasonic leak tester and can then be sealed with
                                                                an appropriate nozzle.




RA Removing and installing front windscreen                                           BMW AG - TIS              30.08.2009 20:45
Issue status (01/2005) Valid only until next CD is issued                             Copyright                       Page - 10 -

								
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