51 37 154 Adjusting rear left or right side window

Special tools required:

Configuring the correct setting will fulfil the following properties:

Seal against water ingress
No wind noise
No rattling
No unintentional reversing of side window during closing action (anti-trap safety function)

Prerequisites for correct adjustment:

Vehicle is supported on wheels at ground level
DOOR WINDOW GLASS correctly adjusted
Recharge BATTERY (read and comply with notes on lithium ion battery)
(Full operability of the power windows during the adjustment procedure is only assured with an external power supply)

Observe the checking and adjustment sequence!

Side window preload
Side window retraction depth/longitudinal direction

Adjusting procedures are performed with hardtop open.

Necessary preliminary tasks:

Remove REAR WEATHER STRIP
Open retractable hardtop
Move side window upwards (close)

Ideal setting, transverse direction:

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

Dimension A = 6 mm

Dimension B = 8, 5 mm

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

Adjusting transverse direction:

Remove SIDE TRIM PANEL UPPER PART .

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

Tightening torque 51 37 4AZ .

Fig 1: Adjusting Transverse Direction

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Ideal adjustment, longitudinal direction:

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

Dimension (A) = 15 ± 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 Ideal Longitudinal Adjustment

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Adjusting retraction depth and longitudinal direction:

Attach special tool 51 3 220 to side window (1).

Slacken multipoint screws (2) using special tool 51 3 240 .

Adjust longitudinal direction and retraction depth by moving side window (1).

Tightening torque 51 37 2AZ .

Check retraction depth and longitudinal direction.

Repeat adjustment procedure if necessary.

Fig 3: Adjusting Retraction Depth And Longitudinal Direction

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Ideal setting, preload:

NOTE: Pre-tension can be checked with or without weather strip. Pretension is 1.0 mm greater with weather strip. Magnet in special tool 51 0 341 creates the correct door window glass pre-tension on the seal system for measurement. No force must be exerted on the door or door window glass during measurement.

Fig 4: Identifying Special Tool (51 0 341)

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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 distance (A) between side window glass (1) and inner edge of door window glass (2).

NOTE: Measuring point 10 mm below upper edge of window glass.

With weather strip fitted (front and rear):

A = 27 ±1 mm

Without weather strip fitted (rear):

A = 26 ±1 mm

Fig 5: Measuring Distance Between Side Window Glass And Inner Edge Of Door Window Glass

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Adjust preload:

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

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

Fig 6: Adjusting Preload

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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 window glasses in hardtop seals.

After completion of adjusting procedure, INITIALIZE POWER WINDOW REGULATOR .