Removing and installing spray nozzle valve: Audi A8 D4 3.9 TDI (ASE, CDRA)

🧭 Before you start

Fits: Audi A8 D4 (4H, 2010–2017)

• Renewed: gaskets

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• Renew gaskets, seals and O-rings.Renew the bolts tightened with specified tightening angle.

🔧 Engine codes this applies to

📋 Procedure

1. Remove intake manifold .
2. Remove bolts (arrows).
3. ⚠ Risk of damage caused by particles of dirt.Observe rules for cleanliness when working on the fuel supply system . — Unscrew high-pressure pipe at connections (1) and (2) on fuel rail. To do so, counterhold at hexagon flats with an open-end spanner and slacken union nut.
4. Detach high-pressure pipe.
5. Remove bolts (arrows).

6. Detach cover with crankcase breather hose (1).
7. Detach gasket.
8. Pull out spray nozzle valve (arrow). [Note: Renew gaskets, seals and O-rings.Renew the bolts tightened with specified tightening angle.]
9. Install high-pressure pipe .
10. Install intake manifold .

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