51 32 154 Adjusting Left or Right Front Door Window Glass
51 32 154 Adjusting left or right front side window
Special tools required:
NOTE:
Configuring the correct setting will fulfil the following properties:
- Seal against water ingress
- No wind noise
- No rattling
- No unintentional reversing of side windows during closing (anti-trap safety function)
Prerequisites for correctly setting door window pane:
- Soft top settings are correct, soft top is closed
- Front door settings are correct
- Vertical dimension of door window pane setting is correct
- Inside weather strip is fitted
- Rear side window is fully open
- Vehicle is supported on wheels at ground level
- All the following procedures must always be carried out step by step and in full
IMPORTANT: When performing measurement and adjustment work, do not slam the door (window pane may shatter).
Necessary preliminary tasks:
- Charge battery (Full operability of the power windows during the adjustment procedure is only assured with an external power supply)
- Remove weather strip on outside of front door (rear)
1. Door window pane preload
1.1. Preparations for measurement:
Open door; move door window pane into uppermost position, if necessary.
Insert special tool 51 0 341 into door lock and manually lock with rotary striker.
Carefully close door until special tool 51 0 341 magnetically connects to striker (= defined door opening angle for measurement).
NOTE:
Ensure that special tool 51 0 341 remains centrally positioned throughout the remaining measurement.
Power window regulator will only move to the end stop via short lift when special tool is inserted.
1.2. Measurement:
NOTE: No force must be exerted on the door or door window pane during measurement.
Rear outer edge of special tool 51 0 342 is aligned with screen printing closure (3) whilst special tool 51 0 342 is pushed in between sealing lips (2) through to profile gasket base (1).
Determine dimension for preload at cutting point (2) between outer edge of door window pane (1) and screen printing closure (3) vertically to scale from special tool 51 0 342.
Preload
Dimension in mm 48 ±2
Measured between profile gasket base and outer edge of door window pane
1.3. Setting:
Open door and remove sealing cap on door window frame.
Correctly position special tool 51 3 300 and slacken nut (4) with reversible ratchet (5).
Tightening torque 51 33 6AZ.
Adjusting element (2) for preload is set at bolt (3) and can be adjusted by turning knob (1) of special tool 51 3 300.
Check dimension for preload as described and repeat adjustment if necessary.
2. Door window pane retraction depth
2.1. Measurement:
2.1.1. Measurement in longitudinal direction
NOTE: Check play of special tool 51 0 000 to edge of door window pane before each measurement.
Open door and remove special tool 51 0 341 from rotary striker lock, if applicable.
Lower door window pane (1) until special tool 51 0 000 can be inserted between gasket (2) of the mirror triangle and door window pane (1).
Carefully close door window pane (1); special tool 51 0 000 must not tilt (to avoid scratching glass).
Align special tool 51 0 000 centrally to the mirror triangle.
Determine dimension for retraction depth at scale of special tool 51 0 000.
Retraction depth in longitudinal direction
Dimension in mm 17 ±1
Measured from window edge to profile gasket edge of mirror triangle
2.1.2. Measurement of retraction depths at point A and B
NOTE: Check play of special tool 51 0 000 to edge of door window pane before each measurement.
To correctly determine the dimension, transfer edge (1) of profile seal with special tool 51 0 342 to scale perpendicular to special tool 51 0 000 (see graphic).
Open door and connect a special tool 51 0 000 to points (A) and (B) of window pane glass.
Close door.
Determine dimension for retraction depth at points (A) and (B) as described at scale of special tool 51 0 000.
2.2. Setting:
NOTE: Avoid damaging door window pane (1) and window cavity through tool use.
Three special tools 51 0 000 are required for quicker adjustments.
When configuring setting, ensure that all special tools 51 0 000 continue to touch edge of door window pane without any gaps.
Attach special tool 51 3 010 centrally to door window pane (1).
Slacken clip bolts (2) with special tool 51 3 240 only until the door window pane (1) can be moved with little effort with special tool 51 3 010.
Open door and move power window regulator down once by approx. 5 cm and back into topmost position. Observe special tool 51 0 000 when doing so.
NOTE:
This is intended to guarantee the correct positioning of the power window regulator at the end stop. If you are unsure, additionally adjust door window pane (1) downwards and repeat process.
Only then adjust retraction depths of door window pane (1) by moving with special tool 51 3 010.
Installation note:
If special tool 51 3 240 is used, the prescribed tightening torque (MDV) reduces depending on the torque wrench used. The torque (MDE) to be set on the torque wrench must be calculated as per the adjacent overview:
Tighten clip bolts (2) with special tool 51 3 240 and torque wrench (1) to calculated value for the torque to be set (MDE).
Relevant basis for calculation, tightening torque (MDV) 51 33 5AZ.
IMPORTANT: Do not loosen or tighten clip bolt via inside of door (removed door trim panel; threaded bolt may snap).
Measure retraction depths of door window pane again and repeat adjustment procedure, if necessary.
Check preload of door window pane again as described under "1. Door window pane preload" and adjust if necessary.
3. Adjustment of rear side windows
This is described under:
Adjustment of rear side windows
