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Service manual
Interior - Play/Knocking Noise In Front Seat Backs NO: 85-28 DATE: 6-18-2007 MODEL / MY: See chart below SUBJECT: Front Seats, Play in Lower Part of Backrest / Adjust REFERENCE: VIDA NOTE: This TNN superseded the previous 85-28, dated March 3, 2006. Please update your files. DESCRIPTION: Some customers may complain about play in the lower part of the front seat backrest. The concern occurs mainly during stop and go driving. Sometimes the play is combined with a knocking noise that can be heard from the recliner area.
For vehicles within the listed chassis range, follow the service method in this document.
MATERIAL AND TOOLING SERVICE: This service solution reduces the concern with play and related noise in the lower part of the seat backrest. However, due to the Whiplash Protection System (WHIPS) assembly, there will always be a nominal play, as there is no fixed connection between the backrest
and the seat frame frame.. Steps 1 through 10 are for the driver's seat adjustment Steps 11 through 15 are for the passenger seat adjustment. 1. Adjustment of driver's seat
Move the seat to the most forward position. Raise the rear edge of the seat cushion to cushion to maximum height. Remove: - Screw on the inside at the front end of the side panel (1). - Pull the side panel straight up in the rear (2). Fold the panel away. 2. Release seat belt
Release the quick fit connection from the seat belt fitting by pressing the catch pin (indicated in the picture).
Remove the complete tunnel tray on cars equipped with a removable tunnel tray (XC90) to gain better access to right side of the seat. Pull the release handle at the bottom and pull the console console to to the rear. For cars not equipped with removable tunnel console console:: the correct combination of tools will allow sufficient access to right side of the seat. 5. Remove plastic cover, inner side. Remove:
- screw - plastic cover. 6. Pull seat backrest up. Note! One additional technician is needed for this step.
- Grab the backrest between the seat cushion and cushion and backrest and pull straight up (about two inches). Note! This requires some force. Hold the backrest in this position while the tape is being applied. 7. Degrease WHIPS slot.
- Clean the slot area with isopropanol and wipe dry as indicated in the picture. 8. Applying felt tape on both sides.
- Cut a piece of felt tape - 1/2 x 2 inches (13 x 51 mm) Tape PN 9511099. - Insert the felt tape strip in the exposed slot from the WHIPS assembly and fold the strip as indicated in the picture. - Repeat the same operation on the opposite side of the seat. 9. Lowering the backrest.
- Lower the backrest and check if the pin slides back into the slot as indicated by the picture. 10. Re-assembly Assemble: - The cover on the inner side of the seat - The screw for the cover. Tighten. - The complete tunnel tray (only XC90) - The cover on the outer side of the seat. - The screw for the cover. Tighten. - The seat belt to the seat belt fitting. Attention: A clicking noise MUST be heard when the seat belt quick-fit connection is snapped in the connection. Check by pulling several times to be sure that the seat belt is correctly assembled into the end connection. Assemble: Side panel. Press the side panel down in the rear. - Screw at the front end on the inside of the side panel. Tighten. - Re-adjust the seat into "normal" operation position. 11. Adjustment of passenger seat.
1) Move seat to the most rearward position. 2) Recline backrest to the most rearward position. 3) Bring backrest back to most forward position. 4) Tilt the whole seat frame frame forward forward (raising the rear end). 5) Move whole seat as far forward as possible. 12. Access to WHIPS slot.
- Press the seat backrest up in order to expose the slots in the WHIPS assembly as indicated in the picture. 13. Degrease WHIPS slot.
Clean the slot area with isopropanol and wipe dry as indicated in the picture. 14. Applying felt tape on both sides. - Cut a piece of felt tape - 1/2 x 2 inches (13 x 51 mm) Tape PN 9511099.
- Insert the felt tape strip in the exposed slot from the whips assembly and fold the strip as indicated in the picture. - Repeat the same operation on the other side of the seat. 15. Lowering the backrest.
- Lower the backrest and check that the pin slides back in the slot as indicated by the picture. - Re-adjust the seat into "normal" operation position.
