Removing and installing high-pressure pump (engine code letters BLP and BLF) — AUDI

🧭 Before you start

Fits: Audi A3 (8P, 2003–2012)

• Renewed: o-ring for high-pressure pump

Don't miss

• Fuel supply line is pressurised. Before loosening fuel connections always release fuel pressure prior to carrying out any work . — Disconnect fuel supply line (arrow).
• Use a cloth to catch escaping fuel.
• Counterhold connections on high-pressure pump and lower section of intake manifold with a spanner when loosening union nuts.
• Lubricate tappets of high-pressure pump with clean engine oil.Always renew O-ring for high-pressure pump.
• Counterhold connections on high-pressure pump and lower section of intake manifold with a spanner when tightening union nuts.

🔧 Engine codes this applies to

📐 22 workshop diagrams for BAG

Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.

📋 Procedure

1. Remove engine cover panel .
2. ⚠ Fuel supply line is pressurised. Before loosening fuel connections always release fuel pressure prior to carrying out any work . — Disconnect fuel supply line (arrow).
3. Detach connector and fuel supply line (arrows) from high-pressure pump. [Note: Use a cloth to catch escaping fuel.]
4. Remove duct (2) and detach clip (4) from high-pressure pipe. [Note: Counterhold connections on high-pressure pump and lower section of intake manifold with a spanner when loosening union nuts.]
5. Loosen union nuts (3) and (1) on high-pressure pipe.

6. Unscrew securing bolts (1), (2) and (3) evenly.
7. Detach high-pressure pump from camshaft housing. [Note: Lubricate tappets of high-pressure pump with clean engine oil.Always renew O-ring for high-pressure pump.]
8. Insert a new, oiled O-ring (2) into groove on high-pressure pump.
9. Fit high-pressure pump (3) on camshaft housing.
10. Tighten securing bolts (1), (2) and (3) evenly.
11. Hand-tighten union nuts (1) and (3) on high-pressure pipe.
12. Install duct (2) and press clip (4) onto high-pressure pipe. [Note: Counterhold connections on high-pressure pump and lower section of intake manifold with a spanner when tightening union nuts.]
13. Tighten union nuts (1) and (3).
14. Attach fuel supply line and connector (arrows) on high-pressure pump.
15. Connect fuel supply line (arrow).

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