Removing and installing intake manifold with fuel rail, cylinder bank 1 (right-side) — AUDI

🧭 Before you start

Fits: Audi A8 D4 (4H, 2010–2017)

• Renewed: seals

Don't miss

• Do not attempt to bend high-pressure pipe to a different shape.Disregard (items 1, 4).
• Disregard (item 1).
• Renew seals and/or gaskets.Secure all hose connections with the correct type of hose clips (same as original equipment) Parts catalogue.

🔧 Engine codes this applies to

📋 Procedure

1. Disconnect vacuum hoses (arrows).
2. Unplug electrical connector at intake manifold flap valve N316(item 1).
3. Take intake manifold flap valve out of bracket and move electrical wiring clear at intake manifold (right-side) (2).
4. Unplug electrical connector (arrow) for fuel pressure sender G247.
5. Remove nuts (1, 2) and bolt (3), move wiring guide clear and push to one side.

6. Unscrew centre hex stud (arrow) and remove guard plate (1).
7. Remove nut (3), move retaining clip clear and remove centre hex stud.
8. Remove bolts (2 and 5).
9. ⚠ The fuel system is pressurised.Risk of injury as fuel may spray out.Wear safety goggles.Wear protective gloves.Release pressure (wrap clean cloth around connection and open connection carefully). — Wrap clean cloth around connection, remove union nuts (arrows) and press high-pressure pipe to one side. [Note: Do not attempt to bend high-pressure pipe to a different shape.Disregard (items 1, 4).]
10. Unplug electrical connector (2) for intake manifold flap potentiometer G336. [Note: Disregard (item 1).]
11. Detach noise insulation panels.
12. Remove bolts (arrows) and detach intake manifold with fuel rail. [Note: Renew seals and/or gaskets.Secure all hose connections with the correct type of hose clips (same as original equipment) Parts catalogue.]
13. ⚠ Risk of damage to intake manifold flaps.To prevent the intake manifold flaps from catching on the guide plates in the cylinder head, the flaps must be in the open position when the intake manifold is installed. — Connect hand vacuum pumpVAS 6213 to vacuum unit for actuating intake manifold flaps, as shown in illustration.
14. Use vacuum pump to generate a vacuum.
15. Press intake manifold with fuel rail evenly onto injectors.
16. Tighten bolts for intake manifold in diagonal sequence and in stages.
17. Disconnect hand vacuum pump from vacuum unit for actuating intake manifold flaps.
18. Install high-pressure pipe .
19. Install charge air cooler housing .

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