Here's a general outline. Specifics might vary slightly depending on the exact trim level and options on your car:
1. Disconnect the Battery: This is the most crucial safety step. Disconnect the negative (-) terminal first.
2. Remove the Seat Back Release Lever: Locate the lever (often on the side of the seat) that allows you to recline the seat back. You might need to remove a small trim piece to access it.
3. Recline the Seat Back: Fully recline the seat back. This provides better access to the seat mounting bolts.
4. Locate and Disconnect Electrical Connectors: Underneath the seat, you'll find several electrical connectors. These power the seat's functions (heaters, power adjustments, etc.). Carefully unplug each connector. Take pictures or make notes to ensure you reconnect them correctly later. Some connectors may have locking tabs; gently push them in to release the connector.
5. Locate and Remove the Seat Mounting Bolts: The seat is typically secured to the floor using four bolts, two on each side. These are usually 13mm or 15mm bolts. You'll need a socket wrench or a wrench of the appropriate size. They might be difficult to access due to the carpet and floor pan, so you might need extensions and/or a swivel socket.
6. Lift and Remove the Seat: Once the bolts are removed, carefully lift the seat straight up. It's relatively heavy, so get help if needed.
Important Considerations:
* Consult a Repair Manual: A factory repair manual for your 1998 Lincoln Mark VIII is highly recommended. It provides detailed diagrams, torque specifications (for reinstallation), and other crucial information that may not be covered here. These manuals can be found online or at auto parts stores.
* Tools Needed: You'll likely need a socket set (with extensions and a swivel socket), a wrench, screwdrivers (possibly Phillips and flathead), and possibly pliers.
* Take Pictures: Before disconnecting anything, take pictures of the electrical connectors and their positions. This will be invaluable during reinstallation.
* Careful Handling: The seat is heavy and potentially delicate. Avoid dropping it or damaging the upholstery.
This is a general guide; the exact procedure might slightly differ. Always refer to a repair manual for your specific vehicle model to ensure you follow the correct procedure. If you're uncomfortable performing this task yourself, it's best to consult a qualified mechanic.
