Removing and installing bottom section of intake manifold (right-side) — AUDI

🧭 Before you start

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

• Renewed: seals

Don't miss

• 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 .
• Disregard items (1) and (4).
• Disregard (item 1).Block off intake ports in cylinder head with clean rags.
• Ensure that high-pressure pipes are not under tension.

🔧 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 engine cover panel .
2. Unscrew union nuts (arrows) and detach high-pressure pipes.
3. Unscrew union nuts (1 ... 4) and detach high-pressure pipes.
4. Remove intake manifold (top section) .
5. Pull crankcase breather hose off air pipe (arrow).

6. Remove bolts (2) and (3).
7. Release hose clip (1) and detach air pipe at air mass meter G70 and at turbocharger.
8. Take electrical connector (arrow) for exhaust gas temperature sender 1G235 out of bracket.
9. Detach electrical connector (3) at intake manifold flap motor V157.
10. Remove bolt (2). [Note: Disregard items (1) and (4).]
11. Detach electrical connectors at glow plugs on cylinder bank (right-side).
12. Remove bolts (arrows) and detach bottom section of intake manifold (right-side). [Note: Disregard (item 1).Block off intake ports in cylinder head with clean rags.] [Note: Renew seals and gaskets.]
13. Install intake manifold (top section) . [Note: Note identification marks for cylinder allocation when re-installing high-pressure pipes.The high-pressure pipes can be re-used after performing the following checks:Check taper seats of high-pressure pipes for deformation and cracks.The bore of the pipe must not be distorted, restricted or otherwise damaged.Corroded pipes must not be used again.]
14. Lubricate threads of union nuts with fuel.
15. Tighten union nuts on high-pressure pipes hand-tight initially.
16. Ensure that high-pressure pipes are not under tension.
17. To tighten union of high-pressure pipe at high-pressure pump, use torque wrenchV.A.G 1331 with socket insert AF 14, flared ring spannerV.A.G 1331/8.
18. To tighten unions of high-pressure pipes at rail elements, use torque wrenchV.A.G 1331 with ratchetV.A.G 1331/1 and socket, 14 mm3150.
19. To tighten union of high-pressure pipe at high-pressure pump, use torque wrenchV.A.G 1331 with ratchetV.A.G 1331/1 and socket T40055, 17 mm.
20. To tighten unions of high-pressure pipes at rail elements, use torque wrenchV.A.G 1331 with tool insert, AF 19V.A.G 1331/5.
21. Check fuel system for leaks .

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