51 31 000 Removing and installing/replacing windscreen
Vehicles with head-up display (HUD):
CHECK whether the HUD marking at bottom right appears on the windscreen (malfunction).
Necessary preliminary tasks:
- Remove RUBBER FRAME FOR WINDSCREEN
- Remove INTERIOR REAR-VIEW MIRROR
- Remove both TRIM PANELS FOR ROOF PILLAR AT FRONT (A-PILLAR)
- Remove COVER FOR COWL PANEL
- Cover front side panels with protective covers
Replacement (depending on version):
- Remount RAIN/LIGHT SENSOR
- If necessary, replace OPTICS FOR SOLAR RAIN/LIGHT SENSOR
- Remount CAMERA for lane departure warning.
Depending on version:
Unplug plug connections (1 to 3).
When using a cutting wire:
In the area of the A-pillar, left/right, make sure that the cutting wire does not feed under sheet metal tab (1).
Mount U-shape knife 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 cutout and windscreen.
Guide handle of knife parallel to windscreen.
Cut through adhesive bead as closely as possible to windscreen.
Wires and hoses remain connected.
Move engine bonnet/hood into service position.
Cut through windscreen adhesive bead at bottom.
Lift out windscreen with special tools 51 3 010 .
Pull off adhesive tapes all round.
Fitting spacer buffers (spacers):
Two different spacer buffers are fitted.
- Square spacer buffer (shape B = 12.7 x 10 mm height stop, wind noises)
- Semicircular spacer buffer (form A = Ø 11 x 5 mm)
A= 3.8 mm
IMPORTANT: To avoid windscreen breakage and wind noises:
Completely remove remnants of removed spacer buffers and maintain installation location exactly.
Cut square spacer buffer (1) at top to approx. 9 mm (radius outlet).
Stick on one square spacer buffer (1) in each case on left/right at spacing (A).
A= approx. 50 mm
Stick on two new semicircular spacer buffers (2) in each case as follows:
- at distance (A or B) from middle of cowl panel
- at distance (C or D) at end of metal radius (5)
- approx. 300 mm
- approx. 665 mm
- approx. 18 mm
- approx. 30 mm
- 1 Windscreen
- 4 Glue bead
- 5 Outlet radius
Version with HUD:
Installation:
Before bonding, install windscreen with seal at top and check HUD ; if necessary, press expanding foam tape down with hand roller.
Replacement:
Stick expanding foam tape (6) 1/3 on cowl panel (5) and 2/3 on sound insulation (7).
Expanding foam tape (6) may only be stuck up to measurement (A) on side frame (8).
A approx. 6.5 mm
- Dashboard trim panel
- Windscreen
- Semicircular spacer buffer
- Glue bead
- Cowl panel (plate)
- Expanding foam tape (sound insulation, cowl panel)
- Sound insulation, bulkhead upper section
- Side frame
Overview for windscreen cementing:
Attach special tool 51 3 010 twice to tool trolley. Moisten suction surfaces and tension windscreen from outside.
If reusing the removed windscreen, remove adhesive residue down to 0.5 mm and press expanding foam tape down with hand roller.
Install rubber frame (6), paying attention to center marking on rubber frame and mirror base.
Virtually vertical part (B) of adhesive bead (1) must be positioned to window edge (5) or rubber frame (6).
Markings (G, H) are on windscreen in bottom corners. Apply primer or adhesive at correct distance to windscreen edge (5) (wind noises, leaks).
Spread cement bead (4) with special tool 00 9 322 .
Stick two yellow plastic adhesive tapes (1) to roof at distance (A) from outside corners.
Length: 400 mm
A= 250 mm
Working on windscreen (1) carefully with special tool 51 3 010 :
- position at top
- align sides evenly
- insert at bottom and press down
- press upwards until seal 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 measurement (A) and check underprotrusion of windscreen (1).
Windscreen underprotrusion (A):
A= 3.2 ± 1 mm
X = Measurement stages 1... 4 mm
Version with HUD:
Installation:
Check and if necessary adjust HUD .
Version with Lane Departure Warning:
Carry out calibration of camera for lane departure warning via BMW diagnosis system:
Service functions:
- Body
- Lane departure warning
- Calibrate camera
- Lane departure warning