51 37 154 Adjusting rear left or right side window

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Prerequisite:

Vehicle must be standing on its wheels on a level floor
DOOR WINDOW GLASS correctly adjusted

Necessary preliminary tasks

Remove rear window cavity seal . See 5137261 REMOVING AND INSTALLING/REPLACING WINDOW CAVITY COVER STRIP FOR DOOR WINDOW, REAR LEFT OR RIGHT or 5137240 REMOVING AND INSTALLING/REPLACING OUTER WINDOW CAVITY COVER STRIP FOR REAR SIDE WINDOW
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).

Fig 1: Identifying Side Window Glass Distance To Body

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Adjusting transversal direction

Remove SEAT BELT COVER .

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

Tightening torque 51 37 4AZ .

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

Fig 2: Identifying Side Window Glass Distance To Door Window Glass

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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 .

Fig 3: Removing Screws Using Special Tool (51 3 310)

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Installation:

The tightening torque to be set 51 37 2AZ (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:

Fig 4: MDE Calculation Diagram

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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.

Fig 5: Identifying Special Tool (51 3 080)

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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
Side window

Fig 6: Identifying Retraction Depth

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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.

Fig 7: Identifying Special Tool (51 0 341) On Rotary Striker Of Door Lock

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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

Fig 8: Identifying Gap Between Side Window Glass And Inside Edge Of Door Window Glass

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Adjusting pretension

Remove rear window cavity cover strip See 5137261 REMOVING AND INSTALLING/REPLACING WINDOW CAVITY COVER STRIP FOR DOOR WINDOW, REAR LEFT OR RIGHT or 5137240 REMOVING AND INSTALLING/REPLACING OUTER WINDOW CAVITY COVER STRIP FOR REAR SIDE WINDOW .

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).

Fig 9: Turning Adjusting Screw Using Special Tool (51 2 220)

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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.