Quarter Window Glass: Adjustments

51 37 154 - Adjusting rear left or right side window





Special tools required:
- 51 0 341
- 51 2 220
- 51 3 080
- 51 3 310





Prerequisite:

- Vehicle must be standing on its wheels on a level floor
- Door window glass 51 32 154 Adjusting Left or Right Front Door Window Glass correctly adjusted





Necessary preliminary tasks:
- Remove rear window cavity seal
- Open retractable hardtop
- Move side window upwards (close)





Ideal adjustment, transversal direction:

Side window glass (1) must be situated at distance (A) to body (2).

Distance A = 9±1 mm

Measuring points in area of B-pillar and at end of side window glass (1).

Adjusting transversal direction:

Remove seat belt cover 51 46 ... Removing and Installing/Replacing Cover For Seat Belt On Left Or Right.

Slacken screws (3) and adjust distance (A).

Tightening torque 51 37 4AZ [1][2]Quarter Window Motor.





Ideal adjustment, longitudinal direction:

Side window glass (1) must be positioned at distance (A) to door window glass (2).

Measurement (A) = 12 ± 1 mm

Parallelism deviation ± 1 mm.

Side window glass (1) may have a max. underprotrusion (B) to door window glass (2).

Dimension (B) = 0 ±1 mm





Adjusting longitudinal direction:

Slacken screws (1) with special tool 51 3 310.

Adjust longitudinal direction by moving side window glass (2).

Tightening torque 51 37 2AZ [1][2]Quarter Window Motor.





Installation:
The tightening torque to be set 51 37 2AZ [1][2]Quarter Window Motor (MDE) is reduced when special tool 51 3 310 is used. Depending on the torque wrench used, the torque must be calculated in accordance with the adjacent overview:

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 = 145 mm)





Checking retraction depth:

- Close retractable hardtop
- Open door window
- Attach special tool 51 3 080 to door window glass
- Close side window completely
- Measure retraction depth

Note:
2 items of special tool 51 3 080 are required for adjustment of retraction depths.





Measure retraction depth (A) in areas (1 to 2).

Measurement (A):

(1) = - 8 ± 3 mm
(2) = - 8 ± 3 mm
If necessary, check or readjust settings on:

- Door window glass, rear 51 37 003 Replacing Rear Left or Right Power Window Unit
- Side window





Ideal adjustment, pretension:

Note:
Pretension can be checked with or without window cavity cover strip. Pretension is 1.0 mm greater 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.





Measure gap (A) between side window glass (1) and inside edge of door window glass (2).

Note:
Measuring point 10 mm below top edge of window glass.

With window cavity cover strip fitted (front and rear): A = 35 +1 mm

Without window cavity cover strip fitted (rear): A = 35 +1 mm





Adjusting pretension:

Remove rear window cavity cover strip.

Turn adjusting screw (1) with special tool 51 2 220 until correct pretension is reached.

Note:
With hardtop closed, side window glass (2) must run correctly into hardtop seals (check only when window cavity cover strip fitted).





Checking adjustment:

Open door window and side window.

Close both windows simultaneously and check run-in of side window glass to door window glass.

Close retractable hardtop.

Hardtop seals must not be damaged.

Check run-in of both windows in hardtop seals.