Removing and installing high-pressure pump - vehicles from 09.2005 onwards — AUDI

🧭 Before you start

Fits: Audi A4 Cabriolet B6/B7 (8H), Audi A4 B6/B7 (8E)

• Renewed: seals

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• Always read rules for cleanliness and instructions for working on fuel system .Follow these instructions and rules for cleanliness before starting work and while working on the fuel system. — Remove engine cover panel .
• Loosen central nut (1) for high-pressure pump shaft using counterhold tool3036.
• Renew seals and gaskets.Hose connections and hoses for charge air system must be free of oil and grease before assembly.Secure all hose connections with the correct type of hose clips (same as original equipment) Parts catalogue.

🔧 Engine codes this applies to

📐 20 workshop diagrams for ASB

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

📋 Procedure

1. ⚠ Always read rules for cleanliness and instructions for working on fuel system .Follow these instructions and rules for cleanliness before starting work and while working on the fuel system. — Remove engine cover panel (see the separate procedure).
2. Unscrew union nuts (1 ... 4) and detach high-pressure pipes.
3. Remove intake manifold (top section) (see the separate procedure).
4. Remove toothed belt for high-pressure pump (see the separate procedure).
5. Loosen central nut (1) for high-pressure pump shaft using counterhold tool 3036.

6. Remove damper weight.
7. Use puller T40064 to pull off belt sprocket for high-pressure pump.
8. Disconnect fuel supply line (2) and fuel return line (1) from high-pressure pump and move lines clear to the side.
9. Remove bolts (1 ... 4).
10. Remove bolts (1) and (3).
11. Unplug electrical connector (2).
12. Carefully pull toothed belt cover in direction of (arrow) and lift out high-pressure pump. [Note: Renew seals and gaskets. Hose connections and hoses for charge air system must be free of oil and grease before assembly. Secure all hose connections with the correct type of hose clips (same as original equipment) Parts catalogue.]
13. ⚠ A new high-pressure pump must first be filled with fuel before the engine is started. The high-pressure pump must not be allowed to run while still empty. Bleeding fuel system — Hand-tighten union nuts on high-pressure pipes. Make sure that connections are not under tension.
14. To tighten unions of high-pressure pipes at rail elements, use torque wrench V.A.G 1331 with tool insert, AF 19V.A.G 1331/5.
15. To tighten union of high-pressure pipe at high-pressure pump, use torque wrench V.A.G 1331 with ratchet V.A.G 1331/1 and socket T40055, 17 mm.
16. Install toothed belt for high-pressure pump (see the separate procedure).
17. Install intake manifold (top section) (see the separate procedure).
18. Bleed high-pressure pump (see the separate procedure).
19. Bleed fuel system and check for leaks (see the separate procedure).

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