Dismantling and assembling upper seat pan frame: Audi A5 Cabriolet

🧭 Before you start

Fits: Audi A5 Cabriolet (8F)

• Renewed: all self-locking bolts

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• If upper frame is renewed, wiring and electrical and electronic components indicated must be removed and installed in new upper frame.
• The bushes cannot be renewed with the equipment available to workshops.The relevant components must be renewed if the bushes are damaged. — Remove seat and steering column adjustment control unit with memory function .
• Make sure electrical connectors are fitted correctly (as far as stop) and engage audibly.
• If the airbag warning lamp K75 indicates a fault following installation, you must interrogate, erase and then re-interrogate the event memory .

📋 Procedure

1. ⚠ Move front seat to top position if possible. This will reduce the spring force when removing and installing the torsion bar and minimise the risk of damage to the bolt fittings between the seat pan upper and lower frame. — Remove front seat:
2. Remove backrest .
3. Detach padding from seat pan:
4. Unplug electrical connector at seat longitudinal adjustment motor.
5. Unplug electrical connector for belt buckle (front) .

6. Unbolt seat position sensor from lower frame .
7. Remove bolt (3).
8. ⚠ 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. — Remove bolts (2) (4x).
9. Lift upper frame (1) off lower frame (4).
10. When doing so, pay attention to bushes (1) in pivot points on lower seat pan frame (2). [Note: If upper frame is renewed, wiring and electrical and electronic components indicated must be removed and installed in new upper frame.]
11. ⚠ The bushes cannot be renewed with the equipment available to workshops.The relevant components must be renewed if the bushes are damaged. — Remove seat and steering column adjustment control unit with memory function .
12. Remove bracket with control unit .
13. Remove seat height adjustment motor .
14. Remove seat rake adjustment motor .
15. Detach wiring harnesses and individual wires from upper seat pan frame.
16. ⚠ Observe safety regulations for 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. — Always clean threaded holes for self-locking bolts using e.g. a thread tap.
17. Renew all self-locking bolts.
18. Install electrical and electronic components and wiring removed earlier in new upper frame. [Note: Make sure electrical connectors are fitted correctly (as far as stop) and engage audibly.]
19. ⚠ The battery must be connected with the ignition switched on. If pyrotechnic components (e.g. airbag or belt tensioner) are inexpertly repaired, this may result in unwanted triggering after connecting the battery. There must not be anyone in the vehicle while you are connecting the battery. — With ignition switched on, connect battery earth wire Electrical system27Battery; Disconnecting and connecting battery. [Note: If the airbag warning lamp K75 indicates a fault following installation, you must interrogate, erase and then re-interrogate the event memory .]

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