51 31 011 Replacing windscreen: Notes
Special tools required:
The following notes form the basis for these repair instructions and must be adhered to at all times:
- See INFORMATION ON VEHICLE PROTECTION
- See MATERIALS FOR BONDING WINDOW
- See SAFETY AT WORK
- See TOUCHING UP PAINTWORK DAMAGE
- See GENERAL PROCEDURE for dismantling/installation of affixed window glass.
Removal is performed with ROLL OUT 2000 .
The following new parts / consumables are required.
| Material | Quantity |
|---|---|
| Windscreen | 1 |
| Cover, windscreen | 1 |
| Spacer buffer 5x5x20 mm | 11 |
| Small repair kit | 1 |
| Sika Activator 205 | 1 |
Necessary preliminary work:
- Remove INSIDE MIRROR .
- Remove BOTH TRIM PANELS FOR ROOF PILLAR AT FRONT .
- Remove COWL PANEL COVER .
- Remove ROOF TRIM STRIPS .
Depending on version:
- Remove CAMERA FOR LANE DEPARTURE WARNING .
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 .
Spacer buffer:
To prevent windscreen breakage and wind noise, completely remove any remnants of removed spacer buffers and maintain the installation position exactly.
Installation position of spacer buffers (1) is determined on body side with marks (arrows) on A-pillar (2) and on cross member (3).
Spacer buffer to be used 5x5x20 mm.
Expanding foam tape:
Observe notes on COMPONENT-BONDING WITH ADHESIVE TAPE .
If necessary, renew RESILIENT SEALING TAPE for VIN number inspection glass on windscreen.
| Apply dimensions to right windscreen half in mirror-inverted fashion | |||
|---|---|---|---|
| All dimensions in mm | |||
| x0 = | 50 | Y0 = | Windscreen center |
| x1 = | 100 | y1 = | 25 |
| x2 = | 200 | y2 = | 55 |
| y3 = | 60 | ||
Install the COVER / RUBBER FRAME (1) for the windscreen.
Pre-treat adhesive area with Sika-Aktivator205.
Overview of windscreen bonding:
Detail view "X"
Spacing, adhesive bead progression (2) to windscreen edge:
≥ 5.5 mm = Primer coat offset outwards by 5.5 mm to adhesive bead progression (2) with width 19 mm
< 5.5 mm = Primer coat coinciding with outer edge of adhesive bead progression (2) with width 17 mm
3 = expanding foam tape
Perform the following steps carefully on the windscreen using SIPHON (51 3 010):
- Insert between engine compartment lid and cowl panel
- Position windscreen at top
- Align sides evenly
- Insert at bottom and press down
- Press windscreen upwards until seal is uniformly contacting roof
- Secure windscreen in this position with the two yellow plastic adhesive tapes
Installation note:
The required gap dimension from the window edge to the body aperture is:
- Top ≥ 7 mm
- Side ≥ 5 mm
Adjusting pre-tension on windscreen:
In order to avoid wind noises, windscreen (1) must be lower than roof outer skin (2).
Position special tool 51 0 010 in middle of vehicle depending on measurement (A) and check underprotrusion of windscreen (1).
A = 4 mm without HUD
A = 3.5 mm with HUD
A = 3 mm with HUD and acoustics
X = measurement stages 1... 4 mm
Version with HUD only:
Check HUD functions again and adjust if necessary. See NOTES ON HEAD-UP DISPLAY and ADJUSTING HEAD-UP DISPLAY .
Only with camera-based driver support systems:
Carry out camera calibration via diagnosis system.
Under Service Functions menu:
- Body
- Lane departure warning
- Calibrating the camera
- Lane departure warning