51 34 154 Adjusting rear left or right front window

Special tools required: 

• 51 0 342 
• 2 356 862 

Prerequisite: 

• Vehicle must be standing on its wheels on a level floor
• PROPERLY FIT fond door

1. Preload ideal setting: 
   1. Check preload setting  :

      Close door.

      Bring special tool 51 0 342  into contact with window guide gasket (2) and door window glass (1).

      Measure the distance (X) between the door window glass (1) and the gasket (2) at measuring points (A) und (B).

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      Area	Dimension (X)
      A	8.5 ±2 mm	Distance of measuring point approx. 50 mm from outer edge of window
      B	9.5 ±2 mm 1	Distance of measuring point approx. 50 mm from outer edge of window

      NOTE: No force must be exerted on the door or door window pane during measurement.
   2. Adjust preload: 

      Remove UPPER B-PILLAR TRIM PANEL .

      Loosen seal (1) in upper area.

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      NOTE: First perform the following operations on the upper adjusting element.
      If the ideal values are not achieved, the lower adjusting element must also be adjusted.

      Slacken nut (1).

      Adjust the preload of the door window glass (2) by twisting the adjustment nut (3).

      Tighten nut (1).

      Tightening torque 51 35 1AZ .

      Check the preload setting again.

      Repeat process if necessary.

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2. Ideal setting in transverse and longitudinal direction: 
   1. Check setting in transverse and longitudinal direction: 

      Open door.

      Connect special tool 2 356 862  at points (A) and (B) on door window glass.

      Close door.

      Measure distance (x) in area (C) from the door window glass to the rear window using special tool 51 0 342  .

      Measure height adjustment of the door window glass in areas (A and B) using special tool 2 356 862  (use 5 mm holder).

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      Area	Dimension
      A	-2 mm	Distance of measuring point approx. 50 mm from outer edge of window
      B	-2 mm	Distance of measuring point approx. 50 mm from outer edge of window
      C	5 ±1 mm	Door window glass to trim Parallelism deviation maximum 1.5 mm
      	12.5 mm	Door window glass to side window (without trim)

      NOTE: Check play of special tool 2 356 862  to edge of door window pane before each measurement.

      Connect special tool 2 356 862  with 5 mm holder (1) to the door window glass while in a locked state (A).

      Close door and undo lock (2).

      Read retraction depth on the scale.

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   2. Adjust door window glass in transverse and longitudinal direction  .

      Remove UPPER B-PILLAR TRIM PANEL .

      Unscrew nuts (1).

      Adjust optimally by shifting the door window glass (2).

      Tighten down nuts (1).

      Tightening torque 51 35 1AZ .

      IMPORTANT: Rear door must open and close without the door window glass touching the roof trim strip (risk of damage)

      Check setting in transverse and longitudinal direction again.

      Repeat process if necessary.

Courtesy of BMW OF NORTH AMERICA, INC.