Removing and installing oil pressure switch F22: Audi A3 (BDX, BPU, BTR, BYT, …)
Step-by-step removing and installing oil pressure switch F22 for the Audi A3: 15 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 A3 (8P, 2003–2012)
- Opens: engine oil
- Renewed: seal/o-ring
Don't miss
- Place a cloth underneath to catch escaping engine oil.
- Renew seal/O-ring.
🔧 Engine codes this applies to
📐 30 workshop diagrams for BDX
Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.
📋 Procedure
- Drain oil filter housing 808.
- Remove front coolant pipes .
- Move electrical connector (1) clear and cut open cable ties (if fitted) (arrows).
- Detach electrical connectors (2) and (3) from bracket.
- Unplug electrical connector (1) on oil pressure switch (2).
- Unplug electrical connector (2).
- Unscrew bolt (1) and move continued coolant circulation pump V51 to one side (coolant hoses (3) remain connected).
- Unplug electrical connector (1).
- Unscrew bolts (arrows) and move solenoid valve for coolant circuit N492 to one side (coolant hoses (2) remain connected).
- Unscrew bolts (arrows) and detach bracket (1). [Note: Place a cloth underneath to catch escaping engine oil.]
- Unplug electrical connector (arrow).
- Unscrew oil pressure switch F22. [Note: Renew seal/O-ring.]
- Install continued coolant circuit pump V51 and solenoid valve for coolant circuit N492.
- Install coolant pipe (left-side) .
- Install coolant pipes (front) .
Ask TorqFix about your Audi BDX — 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 BDX — 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.