Removing and installing convenience system central control unit — AUDI
Removing and installing convenience system central control unit on Audi: 9 steps, 2 torque figures. 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)
🔩 Torque settings
Values can differ between engine variants — check the code stamped on your block.
| Torque | Fastener / step |
|---|---|
| 3 Nm (2.2 lb-ft) | Tighten securing bolts of convenience system control unit |
| 4.5 Nm (3.3 lb-ft) | When installing, tighten nuts |
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
- Fitting location at rear right of luggage compartment beneath side trim.
- Rear right luggage compartment trim removed.
- Unplug electrical connectors (1) and (2).
- Unscrew nuts (arrows) and remove retaining plate from control unit.
- When installing, tighten nuts to 4.5 Nm. — 4.5 Nm (3.3 lb-ft)
- Move wiring harness clear at retaining plate using removal lever 80-200.
- Unplug electrical connectors (1) to (3).
- Press retaining clip (arrow) to side and remove control unit from retaining plate.
- Re-attach all cable ties at the same locations when re-installing.
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 subframe, Crafter 4MOTION with Achleitner four-wheel drive
- Dismantling and assembling selector mechanism · 1 torque figures
- Removing and installing battery – Audi A5 · 1 torque figures
- Renewing valve stem oil seals with cylinder head installed
- Installing windscreen – Audi A8 D4
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.