51 32 154 Adjusting Front Left Or Right Door Window Glass (Coupe, Convertible)

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NOTE:

For Special Tool identification, see BODY EQUIPMENT - SPECIAL TOOLS - 3-SERIES (M54/E46) .

Special Tools Required:

41 6 120
51 3 080

NOTE: The molding must be removed for all adjustments except vertical adjustment.

If necessary, remove molding in front door. Refer to 51 15 330 REMOVING AND INSTALLING/REPLACING BODY MOLDING ON LEFT OR RIGHT FRONT DOOR (COUPE) .

NOTE: Special tool 41 6 120 is required for adjusting door window glass (not for vertical adjustment).

To avoid paintwork damage:

Tape off special tool in front area with adhesive tape.

Attach insert (3) "TORX E7" to basic body (1).

Fig 1: Identifying Special Tool

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On Convertible Only To Avoid Rustling Noises:

CAUTION: Handle door window glass as follows after it has been replaced:

Handle door window glass only in retraction area of convertible top seal on both sides and on top edge.
Clean retraction area with glass cleaner.
Coat retraction area with Aquapel.

Follow instructions for use on containers.

Longitudinal Adjustment:

Ideal Adjustment:

Door window rear edge (1) must protrude by distance (A) in front of edge (2) of outer sealing lip of window cavity cover strip.

A = 1 to 2 mm.

Fig 2: View Of Longitudinal Adjustment

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Lower door window glass down to dimension (A).

A = approx. 155 mm.

Fig 3: Lowering Door Window Glass To Dimension A

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NOTE: To release Torx screws: Turn to left. When releasing rear Torx screw: Grip with hexagon of special tool 41 6 120.

Slacken Torx screws with special tool 41 6 120 through outer adjustment bores (1) and (2).

Fig 4: Locating Adjustment Bores

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Close door window glass and align in longitudinal direction.

Tighten down TORX screws with special tool 41 6 120.

Tightening torque, refer to 51 32 2AZ in BODY EQUIPMENT - TIGHTENING TORQUES - 3-SERIES .

Fig 5: Aligning Door Window Glass

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CAUTION: Check emergency function.

Pretension:

Ideal Adjustment:

Close door window glass.

Close front door up to first catch (D) of door lock rotary latch.

In this door position, top edge of door window glass (1) must rest at least on door seal (2).

Fig 6: Identifying Pretension Adjustment

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NOTE: For purposes of clarity, illustration shows cover, door window glass and screw connection removed.

Preload is adjusted at rear slider (3) only.

Adjust pretension by adjusting eccentric (1) in guide (2) of rear slider (3).

Fig 7: Locating Eccentric In Guide Of Rear Slider

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Insert special tool 41 6 120 in rear bore (1) of front door.

Turn Torx screw (3) counterclockwise through 180° and then turn adjusting screw (4) until it is hard to move.

Check adjustment, see Ideal adjustment.

Repeat procedure as many times until ideal adjustment is reached and lock Torx screw (3) clockwise.

2 Rear slider in front door

Fig 8: View Of Adjusting Screw

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CAUTION: Check emergency function.

Parallelism (Window Tilt):

Fig 9: Identifying Parallelism

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Ideal adjustment:

Door window top edge (1) must be parallel to contour (2) of water drain.

Close door window glass and mark along drip molding at bottom and top with a water-soluble marker pen.

Fig 10: Locating Window Top Edge And Water Drain

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NOTE: Clean door window glass.

Lower door window glass.

Lever out rear rubber plug on door base.

Parallelism is only adjusted by way of bore (1) in front door at rear slider (3).

Turn Torx screw (2) until ideal adjustment is reached.

Installation:

Insert rubber plug.

Fig 11: Adjusting Torx Screw

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CAUTION: Check emergency function.

Vertical Adjustment (Retraction Depth):

To measure retraction depth:

Open front door.
Attach special tool 51 3 080 to door window glass.
Close front door and door window glass.
To adjust retraction depth:
Open front door and door window glass.
Lever out rubber plug at bottom.
Adjust with a commercially available TORX T20.

Fig 12: Measuring Retraction Depth
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Ideal Adjustment:

Dimension (C) is measured at center of A-pillar.

B = min. 3 mm; max. 4 mm.

C = min. 3 mm; max. 4 mm.

NOTE: First adjust rear slider.

If necessary, also adjust front slider.

Fig 13: Measuring Dimension At Center Of A-Pillar

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Lower door window glass.

Lever out rear rubber plug on door base.

Vertical adjustment is adjusted by way of bore (1) in front door at rear slider (3).

Turn Torx screw (2) until ideal adjustment is reached.

Fig 14: Adjusting Torx Screw

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Installation:

Insert rubber plugs.

NOTE: If retraction depth (C) at front is not achieved: Lower door window glass. Lever out front rubber plug on door base.

Vertical adjustment is adjusted by way of bore (1) in front door at front slider (3).

Turn Torx screw (2) until ideal adjustment is reached.

Installation:

Insert rubber plug.

Fig 15: Identifying Vertical Adjustment

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CAUTION: Check emergency function.

Emergency Operation:

Ideal adjustment:

Close door window glass.

Close door lock rotary latch with front door open.

Door window glass now travels to its limit position.

Only Coupe:

In this door position, top edge of door window glass (1) must rest on door seal (2).

Convertible Only :

Measurement (D) = 25 mm.

Coupe And Convertible:

Door window glass must retract under water drain in area of mirror triangle of A-pillar.

Fig 16: Identifying Dimension (D)

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NOTE: If door window sticks:

Lower door window glass.
Lever out front rubber plug on door base.
Turn TORX screw (2) on front slider (3) until ideal setting is obtained.

Installation:

Insert rubber plugs.

Fig 17: Adjusting Torx Screw In Front Slider

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Protrusion Of Door Window Glass:

Ideal Adjustment:

Door window glass (1) is permitted to have a max. protrusion (A) to door well (2).

A = max. 2 mm.

If necessary, check complete adjustment.

CAUTION: Check emergency function.

Fig 18: Measuring Protrusion Of Door Window Glass

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Distance Of Trim (2) To Door Window Glass (1) (Coupe):

Ideal Adjustment:

A = 6 +/- 0.75 mm.

If necessary, detach trim (2) from side window (3) and replace.

NOTE: Trim (2) must fit on other side.

Fig 19: Adjusting Distance Of Trim To Door Window Glass

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Distance Between Side Window And Door Window Glass (Convertible):

Ideal adjustment:

A = 23 to 25 mm.

Distance (A) is measured from seal (1) at rear to front door window edge at rear.

Fig 20: Measuring Gap Between Side Window And Door Window Glass

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