Body - Slow Operation of Front Door Windows
No: 76/11/04/NASRef:
Issue: 1
Date: June 04, 2004
Slow Operation Front Door Windows
AFFECTED VEHICLE RANGE:
New Range Rover (LM) All
SITUATION:
FRONT WINDOW SLOWS OR STOPS
The customer may complain that when operated in an upward direction the front door windows slow down, operate unevenly or do not completely close. The lower window regulator mounting brackets may be out of position.
RESOLUTION:
INSPECT AND IF INDICATED ADJUST WINDOW COMPONENTS
Should a customer express concern regarding slow window operation, perform the timing check procedure. If the timing test indicates a problem proceed with the adjustment procedure.
TOOLS
PARTS INFORMATION
DDW WARRANTY CLAIMS:
DDW requires the use of causal part numbers. Labor only claims must show the causal part number with a quantity of zero.
REPAIR PROCEDURE
CHECK AND TIME BOTH WINDOW LIFT SPEEDS
1. Start the engine and switched off all electrical loads.
2. Lower the front door glass.
NOTE:
The use of a stop watch to accurately time the duration of the window raising operation is required to ensure that accurate information is obtained.
3. Raise the window from fully down position to fully closed position using a stop watch to measure the time taken for the glass to fully rise.
4. Record the time observed.
5. Repeat for the timing procedure on the opposite side of the vehicle.
6. Switch off the engine.
7. Compare the observed times to the standards shown.
8. If the glass rises within the standard times in the table no further action is required.
9. If the glass does not rise within the standard times, follow the adjustment procedure.
ADJUSTMENT PROCEDURE - BOTH BRACKETS - ONE DOOR
1. Lower the front door glass 250 mm (10 inches). (Figure 1)
CAUTION:
When disconnecting battery ensure that all CAUTIONS and WARNINGS are observed, including wait time for NAV and SRS systems.
2. Refer to RAVE/GTR section 76.34.18 and remove the plastic protective sheet following all steps and precautions including removal of the side airbag module.
3. Remove both lower regulator attachment bolts. (Figures 2 and 3).
NOTE:
The measuring depth gauge must be positioned flush with the door frame measuring at 90° from the frame and the bracket.
4. Determine the depth of the rear regulator mounting bracket relative to the door frame and record the measure depth. (Figure 4)
5. Determine the depth of the front regulator mounting bracket relative to the door frame and record the measure depth. (Figure 5)
6. Compare the regulator depth measurements to the acceptable dimensions in the table shown.
7. If adjustment is indicated, position tool LRT-76-008 over the top of the regulator mounting bracket. (Figure 6)
NOTE:
Check the depth from the door frame to bracket with the depth gauge after each adjustment movement.
8. Pry the regulator mounting bracket with the tool until the front bracket is set at 70 +/- 1.5 mm (2.756 +/- 0.059 in) and the rear bracket is set at 60 +/- 1.5 mm (2.362 +/- 0.059 in).
9. Loosen the centre regulator attachment bolt by two complete turns. (Figure 7)
10. Install and tighten the lower regulator attachment bolts to 10 Nm (7 lbf.ft).
11. Tighten the centre regulator attachment bolt to 10 Nm (7 lbf.ft).
12. Loosen two bolts securing the door glass. (Figures 8 and 9)
13. Position the airbag module to the door.
14. Install the used bolts removed during the water shedder disassembly and tighten to 9 Nm (6.5 lbf.ft).
15. Connect the multi-plug to the airbag module.
16. Connect the battery ground lead.
17. Close the window fully.
18. Ensure the glass has seated correctly by gently lifting the forward part of the glass to obtain a good fit into the seal.
19. Tighten the glass clamp bolts to 10 Nm (7 lbf.ft).
20. Ensure glass run seal is correctly installed.
CAUTION:
Failure to wait 2 minutes before disconnecting the battery will damage the navigation computer.
WARNING:
The SRS system requires a further ten minutes without power before work can begin.
21. Refer to RAVE/GTR battery disconnection procedures and disconnect the battery ground lead.
22. After waiting the designated 10 minute interval, disconnect the multi-plug from the airbag module.
23. Remove and discard the three bolts securing the airbag module.
24. Remove the airbag module.
25. Refer to RAVE/GTR section 76.34.18 and install the plastic sheet and airbag following all precautions and using new screws during the airbag installation.