Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1999 Audi A8 BaseFACTORY OEM SERVICE PROCEDURE
Seats Frames
- Contact corrosion!
- Front seats
- Special tools and equipment
- Front seat, removing and installing
- Seat frame trim, removing and installing
- Inner seat frame trim, removing and installing
- Rear seatback, removing and installing
- Rear seatback (sport seat), removing and installing
- Frame trim (sport seat), removing and installing
- Guide rail, removing and installing
- Guide rail (sport seat), removing and installing
- Lateral support and mounting for headrest, removing and installing
- Headrest and guides, removing and installing
- Headrests with monitor, removing and installing
- Seatback mechanical folding table, removing and installing
- Folding table, aligning to backrest
- Power adjustable sport seats
- Notes
- General Notes:
- Mechanical seat, moving forward and back
- Seatback electrical components, removing and installing
- Power components in seat frame, removing and installing
- Headrest adjustment motor and sensor, removing and installing
- End switch for headrest adjustment, removing and installing
- Pump, pressure switch and valve block for lumbar adjustment, removing and installing
- Motor and sensor for seatback, adjustment and installing
- Motors and sensor for height and length adjuster, removing and installing
- Current supply relay for seat adjustment, removing and installing
- Control module for seat adjustment with memory, removing and installing
- Seat switch, removing and installing
- Seat heating connectors, installed position
- Rear seats
- Special tools and equipment
- Rear seat bench, removing and installing
- Rear seatback, removing and installing
- Rear seatback armrest, removing and installing
- Headrest, removing and installing
- Armrest for rear seatback with third headrest, removing and installing
- Electric headrest adjustment, removing and installing
- Electric lumbar adjustment, removing and installing
- Motors for lumbar adjustment, removing and installing
- Wire routing for electric lumbar adjustment and electric headrest, adjustment
- Power adjustable individual seats, rear
- Notes
- Power seat, moving forward and back
- Power motors, assembly overview
- Electrical connectors and relay in support for center cushion
- Electrically adjustable individual seats, removing and installing
- Power adjusted individual seats, separate seatback and seat part
- Armrest for rear seatback, removing and installing
- Power seatback adjustment motor, removing and installing
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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