51 32 154 Adjusting left or right front side window

Special tools required:

Prerequisite:

Vehicle must be standing on its wheels on a level floor.
FRONT DOOR correctly adjusted to fit.
If necessary, close retractable hardtop.

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:

Prior to any adjusting procedure perform incoming check:

NOTE: Incoming check is carried out with the weather strip fitted.

Denormalize POWER WINDOWS .
Measure retraction depths with 2 special tools 51 3 080 .
Insert special tool 51 0 341 (blue) into the rotary striker and close the rotary striker.
51 0 342 Measure preload with special tool.
Initialize power window regulators.

Necessary preliminary tasks:

Denormalize POWER WINDOWS .
Remove 51 21 300 Removing and installing or replacing window cavity cover strip on outside of left or right front door outer weather strip (not for checking pretension).

Ideal adjustment, longitudinal direction:

Open door window.

Fit special tool 51 0 210 (blue) in front door and press back until limit position. Tool must rest on door and have enough clearance along guide (1) in area (A).

NOTE: Special tool 51 0 211 left or 51 0 212 right.

Fig 1: Fitting Special Tool (51 0 210) In Front Door

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

Ideal adjustment, retraction depth:

Open side window.
Attach special tool 51 3 080 to door window glass.
Close front door and door window.
Measure retraction depth.

Fig 2: Attaching Special Tool (51 3 080) To Door Window Glass
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Measure retraction depth (C) in areas (A and B).

Retraction depth (C):

IMPORTANT: Previous sealing system
Image number R51 8601
Black to 01/2009
Silver to 03/2009
New sealing system:
Image number R51 8600
Black starting 01/2009
Silver starting 03/2009

Fig 3: Identifying Side Window Retraction Depth Area

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New sealing system can also be installed as replacement in older vehicles. Visually check which build version is current.

IMPORTANT: Previous sealing system
Front sealing system (1) and rear sealing system (2) make one stage.

A = 4 ± 0.5 mm

Distance between measuring point and mirror triangle = 30 mm.

B= 7.5 ± 0.5 mm

Distance between measuring point and window edge = 90 mm.

IMPORTANT: When closing, the door window glass must not jam on the trim strip in any area of the window (window glass breakage).

Fig 4: Identifying Front And Rear Sealing System

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IMPORTANT: New sealing system:
Front sealing system (1) and rear sealing system (2) form a straight line.

A = 4 ± 0.5 mm

Distance between measuring point and mirror triangle = 30 mm.

B= 9 ± 0.5 mm

Distance between measuring point and window edge = 90 mm.

Fig 5: Identifying Front And Rear Sealing System From Straight Line

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IMPORTANT: When closing, the door window glass must not jam on the trim strip in any area of the window (window glass breakage).

Mask off special tool 51 3 310 in area A with fabric adhesive tape. Place suitable foil between tool and glass (risk of damage to paint finish and glass).

Fig 6: Identifying Special Tool (51 3 310)

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Adjusting longitudinal direction/retraction depth:

Slacken screws (1) with special tool 51 3 310 until door window glass can just be moved.

Fig 7: Removing Slacken Screws

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NOTE: Make sure that the window glass is not glued to support (1) in blue area (A). (Increased break-away torque)

Fig 8: Identifying Window Glass Glue Support Area

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Attach special tool 51 3 010 to door window glass (1).

Slide door window glass (1) 51 0 210 up against limit position of special tool.

Adjust retraction depth of door window (1) in area of A-pillar and B-pillar.

NOTE: Door window glass must rest against special tool 51 0 210 (forward/back adjustment) during adjustment of retraction depth.

Fig 9: Attaching Special Tool (51 3 010) To Door Window Glass

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Tighten down screws (1) with special tool 51 3 310 .

Tightening torque 51 32 2AZ .

Remove special tool 51 3 010 from door window glass.

Open door window and remove special tool 51 0 210 .

Fig 10: Tightening Down Screws

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Upper edge of door window glass (1) must be adjusted parallel to contour (2) of gutter strip.

Gaskets on A-pillar and on retractable hardtop must not be damaged.

When the door window glass is retracted into the gaskets, the gaskets must not distorted.

Fig 11: Locating Door Window Glass Contour

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Ideal setting, preload:

NOTE: Pre-tension can be checked with or without weather strip. Pre-tension is 1.0 mm less 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.

Insert special tool 51 0 341 in rotary striker of door lock and close rotary striker manually. Carefully close door.

Fig 12: Identifying Special Tool (51 0 341)

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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 weather strip:

A = 51 ±1 mm

Dimension (A) without weather strip:

A = 52 ±1 mm

B = 10 mm

Fig 13: Measuring Door Window Glass Outside Edge Dimension

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Adjust preload:

Slacken nut (3) with reversible ratchet (2) of special tool 51 3 300 (consisting of 51 3 301 , 51 3 303 and 51 3 304 ).

Turn knob (1) on special tool 51 3 300 to turn bolt (4) and thereby alter the pretension.

Tighten nut (3).

Tightening torque 51 33 1AZ .

Check adjustment, repeat procedure if necessary.

Fig 14: Turning Knob

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NOTE: After completing adjusting procedure, it is essential to INITIALIZE the power window regulator.

Checking run-in of door window glass:

Door window glass must strike the inside of the gasket.

Check adjustment of REAR SIDE WINDOW , adjusting if necessary.