Removing and installing fuel delivery unit, front-wheel drive, engine codes CAYD, CAYE, CFHC, CFHE, CFHF, CLCA, CFJA — AUDI
Removing and installing fuel delivery unit, front-wheel drive, engine codes CAYD, CAYE, CFHC, CFHE, CFHF, CLCA, CFJA on Audi: 16 steps, engines BDJ, BJB.
Workshop procedure for AUDI — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: VW Caddy III (2K, 2004–2015); platform code 2C0
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- If fuel delivery unit is to be renewed, old delivery unit must be drained before disposal.
- After installing fuel delivery unit, check that supply and return lines are still clipped onto fuel tank.
📋 Procedure
- Observe safety precautions .
- Observe rules for cleanliness .
- Check whether a coded radio is fitted. If so, obtain anti-theft coding:
- Disconnect earth cable at battery with ignition switched off 27Disconnecting and connecting battery.
- Remove fuel tank .
- ⚠ The fuel and the fuel lines in the fuel system can become very hot (danger of scalding)!The fuel system is also under pressure! Before opening the system, place cloths around the connections. Then carefully loosen connection to release the pressure!Wear eye and hand protection when performing any type of repair work on the fuel system! — Release connector (1) and pull it off flange.
- Remove fuel lines (2) and (3). To do this, press release buttons.
- On vehicles with auxiliary heater, open clamp (arrow) and separate fuel line.
- Unscrew union nut with union nut tool3217.
- Pull fuel delivery unit and seal out of the opening in fuel tank. [Note: The lint-free cloth can be ordered from the ServiceNet; Workshop Equipment; Techno equipment catalogue; BMK consumables.Always work carefully and ensure cleanliness when working on the fuel system. The fuel system reacts sensitively to the ingress of dirt.]
- If the fuel delivery unit needs to be exchanged, check the inside of the fuel tank for contaminants/soiling and, if necessary, clean with a lint-free cloth.
- If fuel delivery unit is to be renewed, old delivery unit must be drained before disposal.
- Push sealing flange downwards against spring force and bring sealing flange into installation position.
- Tighten union nut.
- After installing fuel delivery unit, check that supply and return lines are still clipped onto fuel tank.
- Observe installation position of fuel feed line to auxiliary heater 82Fuel supply; Fuel feed.
Other AUDI procedures
- Removing and installing prewiring for unit injectors
- Removing and installing fuel tank, four-wheel drive, engine codes BJB, BLS, BSU
- Removing and installing fuel hoses in engine compartment, 6.0 bar low pressure fuel system
- Checking delivery pressure of fuel system pressurisation pump G6, engine codes CAYD, CAYE, CFHC, CFHE, CFHF, CLCA, CFJA
- Golf5 1.9 TDi (BXE,BXF,BRU,BJB,BKC,BLS) & Caddy 1.9 Tdi/2.0 SDi
- 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
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.