Removing and installing fuel rail with intake manifold flaps — VW

🧭 Before you start

Fits: VW Touran I (1T, 2003–2015), VW Golf V / Jetta (1K, 2003–2009); platform code 5M1

• Renewed: o-rings between injector

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• If an injector was pulled out of the cylinder head when the fuel rail was removed, the Teflon seal must be renewed .

🔧 Engine codes this applies to

🔩 Torque settings

Values can differ between engine variants — check the code stamped on your block.

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

1. Remove intake manifold .
2. ⚠ Fuel supply line is pressurised. Wear eye protection and protective clothing to avoid possible injury and skin contact. Before loosening hose connections, wrap a cloth around the connection. Then release pressure by carefully pulling hose off connection. — Remove fuel supply line (2) (engine code AXW also fuel return line).
3. Separate electrical connectors on fuel rail (arrow).
4. Remove crankcase breather pipe (A) and pull dipstick with guide tube (B) off engine.
5. ⚠ Observe the safety precautions when releasing pressure in the high-pressure section . — Unscrew bolts (1…3) and remove fuel pipes.

6. If fitted, pull protective sleeve off high-pressure pump.
7. Unscrew bolts (1…5) and remove fuel pipes.
8. Loosen securing bolts for fuel rail (arrows).
9. Pull fuel rail with intake manifold flaps off injectors. [Note: If an injector was pulled out of the cylinder head when the fuel rail was removed, the Teflon seal must be renewed .]
10. Renew O-rings between injector and fuel rail and moisten slightly with clean engine oil.
11. Position fuel rail evenly on cylinder head and press it onto injectors.
12. Tighten securing bolts for fuel rail (arrows) to 10 Nm. — 10 Nm (7.4 lb-ft)
13. Install fuel pipes. Tighten all bolts finger-tight only.
14. Now tighten bolts as follows:

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