Removing and installing oil spray jets/valves: Audi 4.2 (CAUA, CFSA)
Step-by-step removing and installing oil spray jets/valves for the Audi 4.2 (CAUA/CFSA): 13 steps. What to remove, in what order, and what to check after.
Workshop procedure for AUDI — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: Audi A5 Cabriolet (8F), Audi A5 (8T, 2007–2016), Audi A4 B8 (8K, 2007–2015)
- Renewed: gaskets
Don't miss
- Renew gaskets and O-rings.Renew the bolts tightened with specified tightening angle.
📐 1 workshop diagram for CAUA
Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.
📋 Procedure
- Remove intake manifold (top section) .
- Disconnect vacuum hose (2) and (3) and take change-over valve (1) out of bracket.
- Remove bolts (arrows) and detach vacuum reservoir.
- Unscrew bolts (left and right) (arrows) and detach bracket (1) for vacuum reservoir.
- Remove bolt (1).
- ⚠ Risk of damage caused by particles of dirt.Observe rules for cleanliness when working on the fuel supply system . — Detach high-pressure pipes (left and right) from connections (arrows) on fuel rail. To do so, counterhold at hexagon flats with an open-end spanner and loosen union nut.
- Detach high-pressure pipe.
- Unscrew bolts (arrows) and move bracket with change-over valve to one side.
- Remove bolts (arrows).
- Detach cover with crankcase breather hose (1).
- Detach gasket.
- Pull out spray nozzle valve (arrow). [Note: Renew gaskets and O-rings.Renew the bolts tightened with specified tightening angle.]
- Install high-pressure line and intake manifold (top section) .
Ask TorqFix about your Audi CAUA — it answers with the exact sequence for that engine and the workshop drawing for each step. First question is free after a 20-second sign-up, no card.
Ask about your Audi CAUA — free → or sign up free to see the drawingsOther AUDI procedures
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Who makes these pages, and how
TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.
The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.
Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.
Seen a figure that does not match your manual? Write to us — we correct it and note when. support@torqfix.com
The story behind TorqFix →Workshop data on this page last updated 20 Sep 2026.