Body - Front Window Grinding/Clicking During Operation
No.: LM-501-005Issue: 1
Date: March 28, 2006
SECTION: 501-11
Front Side Window Operation
AFFECTED VEHICLE RANGE:
Range Rover (LM) VIN: 6A194480 onwards
CONDITION SUMMARY:
FRONT SIDE WINDOW NOISE
A customer may report that during front electric window operation, a grinding or clicking noise is heard from the window mechanism. The noise is evident only when near the top or bottom of window travel.
Cause:
The window glass is incorrectly positioned, resulting in a contact condition between the inner face of the front clamp and the regulator base-plate.
Action:
Should a customer express concern regarding the above, refer to the Repair Procedure detailed in this bulletin to adjust the glass.
PARTS:
No parts required.
WARRANTY
REPAIR PROCEDURE
ADJUST SIDE WINDOW GLASS
CAUTION:
Connect a suitable battery charger to the vehicle during window operation to ensure no loss of battery charge or malfunction of electronic control modules.
1. Lower the side window to mid-travel (approximately 260 mm (10-1/4 in).
NOTE:
GTR lookup sequence is as follows:
GTR Home> NAS > Service Information/LM Range Rover/2006 > Workshop Manuals> Range Rover - Workshop Manual Legacy Systems> Workshop Manual - Service Procedures> Bookmark > "76-1 Doors"> Link "76.34.01 Trim casing - front door"
2. Refer to GTR section 76.34.01 and remove the front door trim panel for access.
3. Partially release the plastic covering from the door panel and temporarily secure aside. (Figure 1)
NOTE:
The contact condition will occur at the top base-plate of the regulator in the area indicated. (Figure 2)
CAUTION:
As a result of the contact condition, scoring marks may be visible along the top and bottom base-plates. Scoring marks are not detrimental to the window function. The window regulator should not be replaced for scoring marks on the regulator.
4. Loosen the two Torx bolts securing the glass to the regulator.
5. Lift the glass completely free of the clamps and then lower the glass back into the clamps.
6. Ensure both clamps are positioned in the upper-most position and in perpendicular alignment to the window glass tab. (Figure 3)
7. Tighten two Torx bolts to 10 Nm (7 lbf-ft).
8. Verify proper operation of the window regulator:
^ No noise heard.
^ The glass raises completely.
^ The glass seals correctly.
9. If the regulator operation or glass position is not correct, follow procedures 4-8 to position the glass correctly.
NOTE:
Wind noise may be reported as a result of incorrect positioning of the front door glass. If wind noise is heard following glass adjustment, bulletin 76/10/03/NAS Issue 5 provides instructions for corrective actions.
10. Road test the vehicle to determine if any wind noise is present with the window closed.
11. If any wind noise is present refer to bulletin 76/10/03/NAS Issue 5 and reposition front door glass.
12. If window operation is correct and free of noise, secure plastic covering to correct position, ensuring a good seal to the door panel.
13. Refer to GTR section 76.34.01 and install door trim panel.
14. Verify correct operation of all door mounted switches.
15. Verify correct operation of the audio speakers mounted on the repaired door.
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