Removing and installing active steering control unit J792 — AUDI
Removing and installing active steering control unit J792 on Audi: 20 steps, 3 torque figures. What to remove, what to tighten and to how many Nm, what to.
Workshop procedure for AUDI — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: Audi A6/A7 C7 (4G, 2011–2018); platform code 4X
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- Basic setting must be performed on the system if active steering control unit J792 has been renewed .
🔩 Torque settings
Values can differ between engine variants — check the code stamped on your block.
| Torque | Fastener / step |
|---|---|
| 6 Nm (4.4 lb-ft) | Attach earth connection (2) to stud and tighten nuts (1) |
| 6 Nm (4.4 lb-ft) | Tighten nuts (7) |
| 8 Nm (5.9 lb-ft) | Fit bracket (4) onto control unit (8) and tighten bolts (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
- When renewing control unit, select "“Replace”" function for relevant control unit using in Guided Functions mode.
- Unbolt driver's seat and move to rear with wiring connected General body repairs, interior72Front seats; Removing and installing front seat.
- Remove floor mat.
- Remove sill panel trim General body repairs, interior70Passenger compartment trim panels; Removing and installing sill panel trim.
- Remove foot rest General body repairs, interior70Passenger compartment trim panels; Removing and installing foot rest.
- Unhook floor covering and press to one side.
- If fitted, detach electronics box for control unit for night vision system J853 from studs and move clear.
- Remove nuts (6).
- Remove nuts (1) and detach earth connection (2) from stud.
- Carefully unfasten clip attachment of wiring harness (3) from bracket (4).
- Remove bolts (5) from control unit (7) and detach bracket (4).
- Unplug connectors of wiring harness (3) from control unit (7).
- Fit bracket (4) onto control unit (7) and tighten bolts (5).
- Plug connectors of wiring harness (3) into control unit (7).
- Clip wiring harness (3) into bracket (4).
- Install control unit with bracket.
- Attach earth connection (2) to stud and tighten nuts (1).
- Tighten nuts (6).
- If originally fitted, insert two pins on electronics box for control unit for night vision system J853 in seat cross member and fit front mounting onto studs.
- Basic setting must be performed on the system if active steering control unit J792 has been renewed .
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
- Servicing front brakes
- Removing and installing pedal cluster, LHD
- Checking electrolyte level
- Servicing drive shaft with triple roller joint
- Removing and installing power-assisted steering box for LHD vehicles with V6 TDI engine
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.