Front Door Window Glass: Adjustments
51 32 154 - Adjusting left or right front door window glass
Special tools required:
Prerequisite:
- Vehicle must be standing on its wheels on a level floor
- Front door Adjustments correctly adjusted to fit
- Close soft top if necessary
Important!
When closing, the door window glass must not jam on the trim strip in any area of the window (window glass breakage).
If necessary, incoming check:
The following incoming check must be carried out prior to every adjustment operation:
Note:
Incoming check must be carried out with the window cavity cover strip fitted.
- Denormalize power window Testing and Inspection
- Measure retraction depths with special tool 51 3 080
- Insert special tool 51 0 341 in rotary striker and close rotary striker
- Measure pretension with special tool 51 0 342
- Initialize power windows
Necessary preliminary tasks:
- Denormalize power window Testing and Inspection
- Remove outer window cavity cover strip 51 21 300 Removing and Installing/Replacing Window Cavity Cover Strip on Outside of Left or Right Front Door (not for checking pretension)
Ideal adjustment, longitudinal direction:
Open door window.
Insert special tool 51 0 330 in front door.
Raise the door window.
Door window glass must rest without play on special tool 51 0 330.
Ideal adjustment, retraction depth:
- Open door window.
- Attach special tool 51 3 080 51 3 080 Tool to door window glass
- Close front door and door window
- Measure retraction depth
Note:
2 items of special tool 51 3 080 51 3 080 Tool are required for adjustment of retraction depth.
Measure retraction depth (C) in areas (A and B).
Retraction depth (C):
A = - 2.0 ± 0.5 mm
Gap between measuring point and triangular mirror section = 30 mm
B = - 6.0 ± 0.5 mm
Gap between measuring point and window edge = 30 mm
Important!
Front door must open and close without the door window glass touching the roof trim strip.
Adjusting longitudinal direction/retraction depth:
Slacken hook screws (1) with special tool 51 3 240 until door window glass can just be moved.
Attach special tool 51 3 010 51 3 010 Suction Lift (2 X) to door window (1).
Slide door window glass (1) up against special tool 51 0 330.
Adjust retraction depth of door window (1) in area of A-pillar and B-pillar.
Note:
When adjusting the retraction depth, make sure door window glass (1) rests against special tool 51 0 330.
Installation Note:
The tightening torque to be set 51 32 1AZ 51 32 Front Door Windows (MDE) is reduced when special tool 51 3 240 is used. Depending on the torque wrench used, this must be calculated according to the adjacent equation:
MDE = - Torque to be set
MDV = - Prescribed torque (without special tool)
lj = - Standard adjustment length with adjusting tool
l1 = - Effective length of torque wrench
l2 = - Inside dimension of adjusting tool
lw = - Inside dimension of insertion tool (here lw = 246 mm+l2)
Installation Note:
If screwing is performed from the inside of the door (removed door trim panel), the tightening torque to be set 51 32 1AZ 51 32 Front Door Windows (without special tool) must be observed.
Tighten hook screw (1) with special tool 51 3 240.
Check adjustment, repeat procedure if necessary.
Ideal adjustment, pretension:
Note:
Pretension can be checked with or without window cavity cover strip. Pretension is 1.0 mm less with window cavity cover strip. Magnet in special tool 51 0 341 creates the correct door window glass pretension on the seal system for measurement. No force must be exerted on the door or door window glass during measurement.
Insert special tool 51 0 341 in rotary striker of door lock and close rotary striker manually. Carefully close door.
Slide special tool 51 0 342 at distance (B) to door window glass side edge into seal (1) and measure dimension (A) to outside edge of door window glass (2).
Dimension (A) with window cavity cover strip:
A = 47 ±1 mm
Dimension (A) without window cavity cover strip: A = 48 ±1 mm
B = 10 mm
Adjusting pretension:
Slacken nut (3) with reversing ratchet (2) of special tool 51 3 300 (consisting of 51 3 301, 51 3 303 and 51 3 304).
Turn the knob (1) on the special tool 51 3 300 to turn the stud (4) and thereby alter the pretension.
Tighten nut (3).
Tightening torque 51 33 1AZ 51 33 Power Windows, Front.
Check adjustment, repeat procedure if necessary.
Note:
After completing adjustment work, it is essential to initialise 67 62 ... Notes on Initializing Power Window Unit In Front Door the power window unit.
Checking run-in of door window glass:
Door window glass must strike the inside of the seal.
Check adjustment of rear side window Adjustments, adjusting if necessary.