Removing and installing fuel gauge sender 3G237 (from model year 2014 onwards) — AUDI

🧭 Before you start

Fits: Audi A8 D4 (4H, 2010–2017)

• Renewed: seal

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• When removing, make sure you do not bend float arm of fuel gauge sender.
• Plug in electrical connector and make sure it is correctly engaged.
• Install new seal (1) for flange (seal must be installed dry).
• Leakage riskThe seal must not be pinched or damaged when installing the flange. — Connect breather line so it engages audibly.

🔧 Engine codes this applies to

📋 Procedure

1. Observe safety precautions .
2. Observe rules for cleanliness .
3. Remove fuel tank .
4. Remove bolts (2), open retainer and take out breather line (1).
5. Press release tab and detach connection piece (3) from flange.

6. Remove locking ring using wrench T10202.
7. Pull flange (3) out of opening in fuel tank.
8. Take seal (1) out of opening in fuel tank.
9. Press release tab and disconnect breather line (2).
10. Release retainer catch and unplug electrical connector on fuel gauge sender 3G237.
11. Carefully remove flange with fuel gauge sender 3G237 through opening in fuel tank. [Note: When removing, make sure you do not bend float arm of fuel gauge sender.] [Note: Renew seal.When installing, make sure you do not bend float arm of fuel gauge sender.]
12. Carefully insert flange with fuel gauge sender 3G237 into fuel tank.
13. Plug in electrical connector and make sure it is correctly engaged.
14. Connect breather line (2) so it engages audibly.
15. Install new seal (1) for flange (seal must be installed dry).
16. Fit flange (3) into fuel tank.
17. Fit flange in correct installation position.
18. ⚠ Leakage riskThe seal must not be pinched or damaged when installing the flange. — Connect breather line so it engages audibly.
19. Install fuel tank .

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