Removing and installing high-pressure pump - vehicles up to 09.2005 — AUDI

🧭 Before you start

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

• Renewed: gaskets

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• Remove central nut (1) for high-pressure pump shaft (use counterhold tool3036).
• Renew gaskets and seals.
• 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 — Install toothed belt for high-pressure pump.

🔧 Engine codes this applies to

📋 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 intake manifold (top section) .
2. Remove bottom section of intake manifold (left-side) .
3. Remove toothed belt for high-pressure pump .
4. Remove central nut (1) for high-pressure pump shaft (use counterhold tool3036).
5. Use puller T40064 to pull off belt sprocket for high-pressure pump.

6. Remove bolts (arrows) and detach toothed belt cover (rear).
7. Remove bolts (arrow) and take off connecting pipe for exhaust gas recirculation.
8. Disconnect fuel supply line (2) and fuel return line (1) from high-pressure pump and move lines clear to the side.
9. Unplug electrical connector (1).
10. Remove bolts (arrows).
11. Take off high-pressure pump together with front bracket.
12. Remove bolts (arrows).
13. Detach front bracket from high-pressure pump. [Note: Renew gaskets and seals.]
14. ⚠ 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 — Install toothed belt for high-pressure pump.
15. Install bottom section of intake manifold (left-side) .
16. Install intake manifold (top section) .
17. Bleed fuel system and check for leaks .

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