Removing and installing fuel pump G23, vehicles with 3.0 ltr. (V6) or 4.2 ltr. (V8) engine up to 05.2010 — AUDI

🧭 Before you start

Remove the left second-row seat, cut the carpet along its perforation and remove the flange cover. Unplug the flange, undo the locking ring, lift the flange and disconnect its connectors and the fuel lines. Turn the delivery unit 15° anticlockwise and lift it out. Insert the new unit, lock it 15° clockwise, reconnect the lines until they engage audibly, fit a new dry flange seal, refit the cover, retaining frame and seat, and put at least 5 litres of fuel in the tank.

Fits: Audi Q7 (4L, 2005–2015)

• Opens: fuel
• Renewed: seal

Don't miss

• Wear gloves when cutting the carpet along the perforation.
• The delivery unit still contains fuel when lifted out; keep it upright.
• Every fuel line must engage audibly on refit.
• Renew the flange seal and fit it dry.
• Put at least 5 litres of fuel in the tank after installation.

Written for this job from the workshop steps below · TorqFix editorial.

🔧 Engine codes this applies to

📋 Procedure

1. Remove individual seat (left-side) or 2/3 section of seat bench (left-side) in 2nd row of seats 72.
2. ⚠ Injury risk!Wear protective gloves. — Use a commercially available carpet knife (1) to cut open floor covering (left-side) along perforation (arrows).
3. Fold back carpet flap to one side (arrow).
4. Unscrew nuts (1 … 4) and detach cover for flange (left-side).
5. Unplug electrical connector (arrow) at flange (left-side).

6. Unscrew locking ring using wrench T10202.
7. Pull flange (left-side) with seal slightly out of fuel tank.
8. Unplug electrical connectors (1) and (2) on underside of flange (left-side).
9. Working through fuel tank opening, press release tab and disconnect supply line (1).
10. Disconnect supply line for suction-jet pump (2). Disconnecting plug-in connectors
11. Disconnect fuel lines (3 and 4). Disconnecting plug-in connectors
12. Reach into opening in fuel tank and release fuel delivery unit (1) by turning 15° in anti-clockwise direction (arrow) (quick-release fastener). [Note: The fuel delivery unit is shown without fuel tank for illustration purposes.]
13. Lift out fuel delivery unit. [Note: Keep in mind that the fuel delivery unit still contains fuel.] [Note: Renew seal.]
14. Insert fuel delivery unit into fuel tank.
15. Lock fuel delivery unit (3) into position by turning 15° clockwise (arrow) (quick-release fastener).
16. Clip on fuel lines (3) and (4) so that they engage audibly.
17. Attach supply line (1) to fuel delivery unit so that it engages audibly.
18. Fit supply line (2) leading to suction-jet pump so that it engages audibly.
19. Connect electrical connectors (1) and (2) to underside of flange (left-side).
20. Install new seal for flange (left-side); seal must be dry.
21. Move flange (left-side) to installation position:
22. Install cover for flange (left-side) .
23. Insert retaining frame (Electronic parts catalogue) in floor covering 70.
24. Install individual seat (left-side) or 2/3 section of seat bench (left-side) in 2nd row of seats 72.
25. Put at least 5 litres of fuel into tank after installing fuel delivery unit.

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