Installing wiring harness repair set for airbags on the backrest — AUDI
Installing wiring harness repair set for airbags on the backrest on Audi: 10 steps, 1 torque figure. What to remove, what to tighten and to how many Nm.
Workshop procedure for AUDI — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: Audi A3 (8P, 2003–2012)
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- Remove backrest . Make sure that none of the wires become damaged.
- Remaining installation is performed in reverse order of removal.
🔩 Torque settings
Values can differ between engine variants — check the code stamped on your block.
| Torque | Fastener / step |
|---|---|
| 10 Nm (7.4 lb-ft) | Secure earth wire (9) to bolt (5 |
ℹ️ Always cross-check the exact figure against your vehicle's factory manual before final tightening — a wrong torque can damage the engine. These values are extracted from workshop data and may not cover every variant or revision.
📋 Procedure
- ⚠ Observe safety regulations for pyrotechnic components .Before handling pyrotechnic components (e.g. unplugging the electrical connector) the mechanic must discharge static electricity by briefly touching the door striker plate, or similar. — Remove backrest cover panel .
- Remove side trim on left and right of seat .
- Remove backrest . Make sure that none of the wires become damaged.
- Secure wiring guide (1) to seat frame using a strip of felt.
- Secure wiring harness repair set for airbags in wiring guide openings on backrest frame.
- Remove electrical connector for wiring harness fitted by factory.
- Plug electrical connector of wiring harness repair set for airbags into airbag unit.
- Carefully detach wire.
- Secure earth wire (9) to bolt (5) (tightening torque: 10 Nm). — 10 Nm (7.4 lb-ft)
- Secure electrical connectors to seat frame using cable ties. [Note: Remaining installation is performed in reverse order of removal.]
Other AUDI procedures
- Removing and installing toothed belt – Audi · 56 torque figures
- Removing engine – Audi A8 D3 · 41 torque figures
- Removing camshaft timing chain from camshafts – Audi A6/A7 C7 · 38 torque figures
- Installing engine – Audi A8 D4 · 36 torque figures
- Removing and installing camshaft timing chain · 29 torque figures
- Removing and installing headlight range control motor V48/V49 - halogen headlights
- Removing and installing headlight range control motor V48/V49 - LED headlights up to model year 2014
- Removing and installing fog light bulb L22/L23 – Audi A8 D4
- Removing and installing tail light cluster on rear lid - Avant
- Removing and installing switches in dash panel – Audi TT Mk1
Who makes these pages, and how
TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.
The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.
Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.
Seen a figure that does not match your manual? Write to us — we correct it and note when. support@torqfix.com
The story behind TorqFix →Workshop data on this page last updated 20 Sep 2026.