Removing and installing oil pressure switch for reduced oil pressure F378 — AUDI

🧭 Before you start

• Renewed: oil pressure switch

Don't miss

• The oil pressure switch for reduced oil pressure F378 is located at the rear of the cylinder head above the turbocharger. Use a small hand mirror if necessary as it is difficult to reach.

🔧 Engine codes this applies to

📋 Procedure

1. Loosen charge air cooler (see the separate procedure).
2. On vehicles with bi-turbo, remove catalytic converter (see the separate procedure).
3. Detach rear coolant pipe and swing to side slightly. [Note: The oil pressure switch for reduced oil pressure F378 is located at the rear of the cylinder head above the turbocharger. Use a small hand mirror if necessary as it is difficult to reach.]
4. Open heat insulation sleeve.
5. Separate electrical connector (1).

6. Place a cloth underneath to catch escaping engine oil.
7. Unscrew oil pressure switch for reduced oil pressure F378(2).
8. Cover open parts of engine to prevent ingress of dirt in lubrication system.
9. Renew oil pressure switch after each removal.
10. Check oil level 20.1.

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