51 32... Adjusting vertical dimension of front left or right side window

Special tools required: 

• 51 3 300
• 51 0 341
• 51 0 340
• 51 0 342
• 51 0 400

Prerequisite: 

• Vehicle must stand on level ground on its wheels
• CHARGE battery

  (Full operability of the power windows during the adjustment procedure is only assured with an external power supply)

• Outer weather strip removed. See 51 21 300 REMOVING AND INSTALLING OR REPLACING WINDOW CAVITY COVER STRIP ON OUTSIDE OF LEFT OR RIGHT FRONT DOOR .
• Front sound insulation removed. See 51 48 060 REMOVING AND INSTALLING/REPLACING SOUND INSULATION IN LEFT OR RIGHT FRONT DOOR .

1. Preparations for measurement: 

   Rear window lift rail (1) must be centered on holder (2).

   • Slacken nut (3) with special tool 51 3 300 (do not release)
   • Adjust rear window lift rail (1) until lock washer (4) is centered on nut (3)
   • Tighten nut (3)

     Tightening torque 51 33 7AZ .

     Fig 1: Identifying Slacken Nut, Holder And Rail

     Courtesy of BMW OF NORTH AMERICA, INC.

   Open door, move door window glass into uppermost position.

   Insert special tool 51 0 341 (from set 51 0 340 ) into door lock and manually lock rotary striker.

   NOTE: Power window regulator will only move to the end stop via short lift when special tool is inserted.
   Fig 2: Moving Door Window Glass

   Courtesy of BMW OF NORTH AMERICA, INC.
2. Measure the cavity gap: 

   Please observe line of sight when reading (from rear edge of door towards the front).

   Determine shaft dimension (X) using special tool 51 0 342 (from set 51 0 340 ) from door window glass horizontally to inner edge of flange (1).

   (X) = 10.5 ±1 mm

   Fig 3: Measuring Cavity Gap

   Courtesy of BMW OF NORTH AMERICA, INC.
3. Adjust the cavity gap: 

   Loosen nut (1) with special tool 51 0 400 .

   Insert extension in special tool 51 0 400 .

   Adjust shaft dimension by twisting the extension and countering with nut (1).

   Tightening torque 51 33 6AZ .

   Check shaft dimension, repeat adjustment procedure if necessary.

   NOTE: After adjusting procedure on shaft dimension: adjust front door window glass. See 51 32 154 ADJUSTING LEFT OR RIGHT FRONT SIDE WINDOW .
   Fig 4: Identifying Special Tool 51 0 400

   Courtesy of BMW OF NORTH AMERICA, INC.