Vehicles with 4-cylinder unit injector TDI engine — AUDI
Vehicles with 4-cylinder unit injector TDI engine on Audi: 10 steps. What to remove, in what order, and what to check after.
Workshop procedure for AUDI — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: Audi A6 C6 (4F, 2004–2011)
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- Secure brake disc with wheel bolt.
📋 Procedure
- With ignition switched off, disconnect earth cable at battery (see the separate procedure). [Note: Secure brake disc with wheel bolt.]
- Release fasteners (1, 2) and (arrow) (if fitted) to remove noise insulation.
- Unbolt heat shield (1) for drive shaft (right-side).
- Remove bolts (1) and (2).
- Detach starter and swivel aside.
- Unplug electrical connector (3).
- Unscrew nut (1) for clamp.
- Unscrew nut (2) and remove electrical wiring.
- Take out starter.
- Connect battery. Steps required (see the separate procedure).
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 cylinder head - engine codes AEB, AJL – Audi 1.8
- Removing cylinder head - engine codes ANB, APU, ARK, ATW
- Installing sump - engines with liquid gasket – Audi A4 B5 1.8 · 1 torque figures
- Installing sump (bottom section) - engines with moulded gasket · 2 torque figures
- Checking intake manifold pressure sender G71 – Audi A8 D2
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 → · How these pages are made →Workshop data on this page last updated 20 Sep 2026.