Removing and installing lower seat pan frame: Audi A8 D4

🧭 Before you start

Fits: Audi A8 D4 (4H, 2010–2017)

📋 Procedure

1. ⚠ Observe safety precautions when working on pyrotechnic components .Before handling pyrotechnic components (e.g. unplugging the electrical connector) the mechanic must discharge any static electricity. This can be done by briefly touching the door striker plate, or similar. — If possible, move the front seat to the highest position to minimize the pre-tension of the torsion bar.
2. Remove front seat .
3. Remove bolt (3).
4. Disengage hook (arrow) of seat position sensor (2) from lower seat pan frame (1).
5. Unclip electrical wiring from lower seat pan frame and move to one side.

6. Unplug electrical connector at seat longitudinal adjustment motor.
7. Unclip bracket for modular wire routing at lower seat pan frame.
8. Remove bolts (4).
9. Disengage the retaining plate (3) at the lower seat pan frame (arrow) and detach.
10. ⚠ Risk of damage to threaded holes or bushes in pivot points (bolted connection between upper and lower frame).A second mechanic is required to take hold of the backrest and press the seat downwards slightly when removing the bolts listed below.Risk of damage to thread of bolt (6).Bolt for adjustment spindle has left-hand thread. — Unscrew bolt (6) at adjustment spindle of seat height adjustment motor.
11. Remove bolts (1, 5) and detach upper seat pan frame (2) from lower frame (7).
12. ⚠ Observe safety precautions when working on pyrotechnic components .Before handling pyrotechnic components (e.g. plugging in the electrical connector) the mechanic must discharge any static electricity. This can be done by briefly touching the door striker plate, or similar.Check inertia safety latch for freedom of movement .Observe all measures to be taken when installing the front seat . — Fit all electrical/electronic components and wires in the new lower frame.

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