Removing and installing fuel pressure regulating valve N276, version 1 — AUDI

🧭 Before you start

Fits: Audi A3 (8V, 2012–2020)

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• Loosen union nut (1) using open-end spanner insert, 30 mm T10553 (at the same time, counterhold at hexagon flats on housing). Then unscrew and remove by hand.
• Extract dirt from opening in high-pressure reservoir (thread and sealing surface) using a vacuum cleaner. Do not use metal tools, etc.
• Fuel pressure regulating valve N276 must always be renewed after it has been removed.The beginning of the thread and the deformable sealing lip of the fuel pressure regulating valve N276 must be coated with diesel fuel.
• Tighten union nut using open-end spanner insert, 30 mm T10553 (at the same time, counterhold at hexagon flats on housing).

🔧 Engine codes this applies to

📐 47 workshop diagrams for CLHA

Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.

📋 Procedure

1. Remove engine cover panel .
2. Move clear fuel return hose (1).
3. Open retaining clips (arrows), and unclip and detach wiring duct (2).
4. Before removal, clean area around thread for fuel pressure regulating valve N276 using e.g. commercial cleaning solution.
5. Dry off fuel pressure regulating valve N276.

6. Unplug electrical connector (2).
7. Loosen union nut (1) using open-end spanner insert, 30 mm T10553 (at the same time, counterhold at hexagon flats on housing). Then unscrew and remove by hand.
8. Extract dirt from opening in high-pressure reservoir (thread and sealing surface) using a vacuum cleaner. Do not use metal tools, etc.
9. Seal off open connection in high-pressure reservoir with clean plug. [Note: Fuel pressure regulating valve N276 must always be renewed after it has been removed.The beginning of the thread and the deformable sealing lip of the fuel pressure regulating valve N276 must be coated with diesel fuel.]
10. Screw on union nut by hand.
11. Align new regulating valve so that connecting wire is free of tension after connector is attached.
12. Hold regulating valve in this position by counterholding hexagon flats on housing of regulating valve with open-end spanner or pliers (water pump pliers or similar).
13. Tighten union nut using open-end spanner insert, 30 mm T10553 (at the same time, counterhold at hexagon flats on housing).
14. Check fuel system for leaks .
15. Install engine cover panel .

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