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Home >> Mercury >> 2010 >> Grand Marquis V8-4.6L Flex Fuel >> Repair and Diagnosis >> Body and Frame >> Seats >> Seat Back >> Service and Repair >> Overhaul

Overhaul




Seat Backrest - Front

NOTE: Driver seat shown, passenger similar.

NOTE: Front 50 percent seat shown, 40 percent similar.











Disassembly

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.

WARNING: 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.

WARNING: 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.

NOTE: If a side air bag deployment took place the seat backrest foam pad, trim cover and side air bag module must be installed new. The backrest frame should be installed new if necessary.

NOTE: If a seat backrest heater mat is faulty, a new seat backrest foam pad must be installed with the heater mat. Do not reuse the original seat backrest foam pad.

All vehicles

1. Remove the front seat backrest. For additional information, refer to Seat Backrest - Front Seat Backrest - Front.

2. If police vehicle, remove the head restraint locking clip (outboard side - driver, inboard side - passenger).





3. Press the release button and remove the head restraint.





4. NOTE: If installing a new side air bag module, use new retaining nuts. If the same side air bag module is to be reused, then reuse the side air bag module nuts.

Remove the 2 side air bag retaining nuts and discard (if required).

5. Position the side air bag module and deployment chute away from the mounting bracket and seat backrest frame.





6. Position the backrest trim cover and backrest foam pad forward enough to access the side air bag module.

7. Remove the side air bag module from the deployment chute.
- Pull the side air bag module mounting studs back through the deployment chute openings and remove the side air bag module from the deployment chute.





8. Disconnect the electrical connector and remove the side air bag module.

9. From inside the seat backrest, pinch the headrest guide pin ends and remove the sleeves.





10. Remove the backrest foam pad and trim cover.
- Separate the trim cover from the backrest foam pad.

Vehicles with power lumbar

11. Detach the lumbar motor bracket clip.





12. Detach the 2 lumbar support bracket clips and slide the lumbar assembly up and off.





Assembly

Vehicles with power lumbar

1. Slide the lumbar support bracket and lumbar assembly onto the seat frame until seated on the 2 clips.





2. Install the lumbar motor and attach the lumbar motor bracket clip.





All vehicles

3. Position the backrest trim cover to the backrest foam pad.

1. With the backrest trim cover inside out, feed the side air bag module deployment chute through the backrest foam pad opening.

2. Make sure the deflector flap is positioned as shown.





4. Position the backrest trim cover around the backrest foam pad and attach the hook-and-loop strips.
- Make sure the side air bag deflector flap is positioned between the backrest trim cover and the backrest foam pad.

5. Align the backrest foam pad and trim cover to the backrest frame.

6. Install the head restraint sleeves.





7. If police vehicle, install the head restraint locking clip onto the head restraint sleeve.





8. Connect the side air bag module electrical connector.

9. WARNING: 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.

WARNING: Inspect the seat side air bag module and mounting surfaces for any damage or foreign material before installing the seat side air bag module. If any damage is found, install new components. 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 increase the risk of serious personal injury or death in a crash.

WARNING: 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.

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.

WARNING: If the seat side air bag module deployment chute is not correctly positioned and closed, the seat side air bag module may not deploy correctly. 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.

Position the side air bag module into the deployment chute.
- Position the side air bag module into the deployment chute with the alignment pin offset to the top and the electrical connector to the bottom of the seat backrest. This will position the alignment pin correctly when the side air bag module and deployment chute are mounted to the backrest frame mounting bracket.

- The side air bag module mounting studs and alignment pin must come through the deployment chute stud openings.





10. Install the side air bag.
- Install the side air bag module onto the front seat backrest frame mounting bracket.
- The deployment chute should not have any wrinkles or folds where it contacts the seat back frame mounting bracket.

- Install the 2 side air bag module nuts (new nuts, if required).
- Tighten to 7 Nm (62 lb-in).

11. Reposition the backrest foam pad and trim cover to the backrest frame.

12. NOTE: The backrest frame and side air bag module have been removed from view for clarity.

Make sure the deflector flap lays flat between the backrest trim cover and backrest foam pad.





13. Install the head restraint.

14. Install the front seat backrest. For additional information, refer to Seat Backrest - Front Seat Backrest - Front.

15. Repower the SRS. For additional information, refer to Supplemental Restraint System (SRS) Depowering and Repowering in the General Procedures portion of Restraint Systems.

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