FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Home >> Mercury >> 2008 >> Sable FWD V6-3.5L >> Repair and Diagnosis >> Body and Frame >> Seats >> Seat Back >> Service and Repair >> Overhaul >> Seat Backrest - Front

Seat Backrest - Front

SEAT BACKREST - FRONT

Special Tool(s)


Special Tool(s):






Disassembly


Part 1:






Part 2:






WARNING:
- Always carry or place a live air bag module with the air bag and deployment door/trim cover/tear seam pointed away from the body. Do not set a live air bag module down with the deployment door/trim cover/tear seam face down. Failure to follow these instructions may result in serious personal injury in the event of an accidental deployment.
- Never probe the electrical connectors on air bag, safety canopy or side air curtain modules. Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.
- If the seat side air bag cover has been damaged or separated from its mounting, or if the air bag material has been exposed, install a new seat side air bag module. Never try to repair the seat side air bag module. Failure to follow these instructions may result in the seat side air bag deploying incorrectly, which increases the risk of serious personal injury or death in a crash.
- Front seat backrest trim covers installed on seats equipped with seat side air bags cannot be repaired. A new trim cover must be installed. Cleaning is permissible. Failure to follow these instructions may result in the seat side air bag module deploying incorrectly and increase the risk of serious personal injury or death in a crash.
- To reduce the risk of accidental deployment, do not use any memory saver devices. Failure to follow this instruction may result in serious personal injury or death.

CAUTION: To prevent system failure, it is necessary to carry out the occupant classification sensor (OCS) system reset when a front passenger seat cushion is disassembled, a new trim cover installed or an OCS system service kit is installed. A scan tool is used to carry out the OCS system reset command.

NOTE:
- If a side air bag deployment took place, a new seat back pad, trim cover and side air bag module and nuts must be installed. The seat back frame should be replaced if necessary.
- The air bag warning indicator illuminates when the restraints control module (RCM) fuse is removed and the ignition switch is ON. This is normal operation and does not indicate a supplemental restraint system (SRS) fault.
- The SRS must be fully operational and free of faults before releasing the vehicle to the customer.

All seats
1. Remove the front seat.
2. Remove the seat backrest.
3. Remove the head restraint.

Seat with manual lumbar
4. Remove the screw and the lumbar adjust handle.

All seats
5. Release the backrest trim cover lower J-clips.

6. CAUTION: Use care when separating the seat back trim cover from the hook-and-loop strip, or the hook-and-loop strip may be torn from the seat back foam.

Place a hand between the backrest trim cover and backrest foam pad and carefully separate the hook-and-loop strips, then carefully roll up the backrest trim cover in an inside out fashion to the first row of hog rings in the front.
- On passenger seats, pull the backrest fold-flat release strap through the trim cover bezel opening.

7. Remove the first row of hog rings.







8. Release the hook-and-loop strips and carefully roll up the backrest trim cover and remove the second row of hog rings in the front.







9. Release the J-clips at the back of the backrest trim cover.







10. Release the side air bag module backrest trim cover chute J-clip from around the side air bag module cover.







11. Feed the side air bag module backrest trim cover chute and J-clip retainer out through the side air bag module backrest foam pad opening.







12. Release the hook-and-loop strip, and carefully roll up the backrest trim cover and remove the third row of hog rings in front.
13. Release the hook-and-loop strips in front, roll the backrest trim cover up and remove the hog rings at the back.







14. NOTE: The head restraint guides are not interchangeable.

Release the tabs and remove the head restraint guides.

15. Remove the backrest trim cover.

16. NOTE: Vehicles with manual lumbar adjust shown.

Remove the hog rings attaching the lumbar basket (if equipped) or backrest support (if equipped) and backrest foam pad to the backrest frame.







17. Remove the backrest foam pad.

18. NOTE: Note the routing of the side air bag module wiring for installation.

Release the 3 side air bag harness pin-type retainers and remove the nuts and the side air bag module with wire harness.







Passenger seat and driver seat with manual lumbar
19. Remove the tie strap.

Seat with manual lumbar
20. Remove the 2 screws and separate the lumbar adjuster.
21. Release the lumbar basket at the bottom and top and remove the assembly.

Passenger seat
22. Separate the backrest latch cable pin-type retainer at the lower left corner of the backrest frame.
23. Remove the 4 bolts and remove the backrest latch assembly and cable.

Assembly

Passenger seat
1. Position the backrest latch with cable and install the 4 bolts.
- Tighten to 25 Nm (18 lb-ft).

2. Attach the backrest latch cable pin-type retainer at the lower left corner.

Seat with manual lumbar
3. Attach the lumbar basket to the backrest frame at the bottom and top.
4. Position the lumbar adjuster and install the 2 screws.

Passenger seat and driver seat with manual lumbar
5. Wrap the 3 tie straps around the backrest latch cable and lumbar cable at the top and sides of the seat backrest frame.

All seats

6. WARNING:
- Inspect the seat side air bag module cavity in the seat backrest foam pad for any foreign material. If any foreign material is found, remove it. Failure to follow these instructions may result in the seat side air bag module deploying incorrectly and increases the risk of serious personal injury or death in a crash.
- Before installing the seat side air bag module/deployment chute assembly:
- Inspect the side air bag module and mounting surfaces for any damage or foreign material.
- Remove any foreign material from the mounting surfaces of the deployment chute, the seat backrest frame mounting bracket and the air bag module cavity in the seat backrest foam pad.
- Install new parts if damaged.

Failure to follow these instructions may result in the seat side air bag deploying incorrectly, which increases the risk of serious personal injury or death in a crash.

- If the seat side air bag cover has been damaged or separated from its mounting, or if the air bag material has been exposed, install a new seat side air bag module. Never try to repair the seat side air bag module. Failure to follow these instructions may result in the seat side air bag deploying incorrectly, which increases the risk of serious personal injury or death in a crash.

CAUTION: Make sure the side air bag module wiring harness is not pinched between the side air bag module and the backrest frame. Failure to follow this instruction may result in component damage and/or system failure.

Position the side air bag module studs through the backrest frame and install the nuts.
- Tighten to 10 Nm (89 lb-in).







7. Route the side air bag module harness down the side of the backrest frame and install the pin-type retainers.
8. Position the backrest foam pad to the backrest frame.

9. NOTE: Vehicle with manual lumbar adjust shown.

Install the hog rings attaching the lumbar basket (if equipped) or backrest support (if equipped) and backrest foam pad to the backrest frame.







10. Position the backrest trim cover to the backrest foam pad and frame.
11. Roll the backrest trim cover down, attaching the hook-and-loop strips at the front and install the hog rings at the back.







12. Install the third row of hog rings in front and attach the hook-and-loop strips.
13. Roll down the backrest trim cover to the side air bag module.

14. WARNING:
- Check the seat side air bag deployment chute for damage. The deployment chute must not be repaired. If there is any damage to the deployment chute, a new seat back trim cover and deployment chute must be installed as a unit. Failure to follow these instructions may result in the seat side air bag module deploying incorrectly and increase the risk of serious personal injury or death in a crash.
- Before installing the seat side air bag module/deployment chute assembly:
- Inspect the side air bag module and mounting surfaces for any damage or foreign material.
- Remove any foreign material from the mounting surfaces of the deployment chute, the seat backrest frame mounting bracket and the air bag module cavity in the seat backrest foam pad.
- Install new parts if damaged.

Failure to follow these instructions may result in the seat side air bag deploying incorrectly, which increases the risk of serious personal injury or death in a crash.

Feed the side air bag module backrest trim cover chute and J-clip retainer back through the side air bag module backrest foam pad opening.







15. Install the side air bag module backrest trim cover chute and J-clips around the side air bag module and backrest frame. Attach the chute J-clips.







16. Attach the J-clips at the back of the backrest trim cover.







17. Attach the hook-and-loop strips, roll the backrest trim cover down and install the second row of hog rings in the front.







18. Attach the hook-and-loop strips, roll the backrest trim cover down and install the first row of hog rings in the front.







Passenger seat
19. Pull the backrest latch fold-flat release strap through the backrest trim cover bezel opening.

All seats
20. Attach the backrest trim cover lower J-clip.

Seats with manual lumbar
21. Install the lumbar adjust handle and screw.

All seats

22. NOTE: The head restraint guides are not interchangeable.

Install the head restraint guides.

23. Install the head restraint.
24. Install the seat backrest.
25. Install the seat.
26. Repower the SRS. Do not prove out the SRS at this time.

Passenger seat

27. WARNING:
- Make sure the front passenger seat repair is complete, the seat and all attached components (head restraint, seat side shield, etc.) are correctly assembled, and the seat is correctly installed to the vehicle before carrying out the System Reset. Failure to follow these instructions may result in incorrect operation of the occupant classification sensor (OCS) system and increases the risk of serious personal injury or death in a crash.
- Install a new occupant classification sensor (OCS) system service kit as a complete assembly. Never install only part of the kit components. Failure to follow this instruction may result in incorrect operation of the OCS system and increases the risk of serious personal injury or death in a crash.

CAUTION:
- To prevent system failure, it is necessary to carry out the occupant classification sensor (OCS) system reset when a front passenger seat cushion is disassembled, a new trim cover installed or an OCS system service kit is installed. A scan tool is used to carry out the OCS system reset command.
- To prevent system failure the following precautions must be taken before carrying out the occupant classification sensor (OCS) system reset:
- Make sure the voltage to the OCSM is above 8.0 volts and less than 18.0 volts.
- Make sure the OCS system is not at a temperature below 6°C (42°F) or above 36°C (97°F) when initiating the OCS system reset process. If the vehicle has been exposed to extreme cold or hot temperatures, the vehicle must be exposed and kept at a temperature within the limits, 6°C to 36°C (42°F to 97°F) for a minimum of 30 minutes.
- Make sure nothing is present on the passenger seat before carrying out the OCS system reset and nothing is placed on the seat during the process.
- Make sure a minimum 8-second time period has passed after cycling the ignition switch ON before the carrying out the OCS system reset process.

NOTE: If the first attempt to carry out the OCS system reset is unsuccessful, a second attempt must be made. If the second attempt to carry out the OCS system reset is unsuccessful, a new OCS system service kit must be installed.

Carry out the OCS system reset.

28. NOTE: The ignition switch must be cycled after the OCS system reset.

Cycle the ignition switch from ON to OFF.

All seats
29. Prove out the SRS as follows:

Turn the ignition key from ON to OFF. Wait 10 seconds, then turn the key back to ON and visually monitor the air bag warning indicator with the air bag modules installed. The air bag warning indicator will light continuously for approximately 6 seconds and then turn off. If an air bag SRS fault is present, the air bag warning indicator will:
- fail to light.
- remain lit continuously.
- flash.

The flashing might not occur until approximately 30 seconds after the ignition switch has been turned from the OFF to the ON position. This is the time required for the RCM to complete the testing of the SRS. If the air bag warning indicator is inoperative and a SRS fault exists, a chime will sound in a pattern of 5 sets of 5 beeps. If this occurs, the air bag warning indicator and any SRS fault discovered must be diagnosed and repaired.

Clear all continuous DTCs from the RCM and OCSM using a scan tool.
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