Checking fuel system pressurisation pump G6 (electrical test) - A5 up to model year 2011, A4 up to model year 2012 (vehicles with four-wheel drive) — AUDI

🧭 Before you start

Fits: Audi A5 (8T, 2007–2016), Audi A5 Cabriolet (8F), Audi A4 B8 (8K, 2007–2015)

• Special tools named: V.A.G 1348, V.A.G 1348/3
• Renewed: fuel delivery unit

Don't miss

• Disregard (items 2, 3).
• Disregard (items 1, 3).
• The fuel pump runs very quietly. Where possible, avoid noisy surroundings when testing the fuel pump.

🔧 Engine codes this applies to

📋 Procedure

1. Observe test conditions .
2. Remove rear seat bench General body repairs, interior72Rear seats; Removing and installing seat bench/individual seats.
3. Unscrew cover for flange (arrows).
4. Release retainer catch with assembly tool T10118 and unplug electrical connector (1) on flange. [Note: Disregard (items 2, 3).]
5. Connect remote controlV.A.G 1348/3A for V.A.G 1348 to contact (1) using adapter cable V.A.G 1348/3-3 and test lead from auxiliary measuring setV.A.G 1594C.

6. Tape off 2nd connector contact of adapter cable V.A.G 1348/3-3 with insulating tape (arrow) to prevent short circuits.
7. Connect contact (5) to vehicle body (earth) using a test lead from auxiliary measuring setV.A.G 1594C.
8. Move switch of remote controlV.A.G 1348/3A for V.A.G 1348 to front of engine compartment.
9. Remove seal (arrow).
10. Unclip entire plenum chamber cover (depending on equipment version) or single component (2) and detach. [Note: Disregard (items 1, 3).]
11. Release retainer (arrow A) and open cover (arrow B).
12. Connect crocodile clip to jump start socket U6(item A) in terminal 30 wiring junction 2TV22 located in plenum chamber.
13. Press remote control switch. [Note: The fuel pump runs very quietly. Where possible, avoid noisy surroundings when testing the fuel pump.]
14. If no noise can be heard from pump, remove fuel delivery unit .
15. Check that wiring between flange and fuel pump is connected and test for continuity.
16. Renew fuel delivery unit if no wiring fault is detected.
17. Install fuel delivery unit .

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