Removing and installing fuel tank with its attachments (vehicles with four-wheel drive) — AUDI
Removing and installing fuel tank with its attachments (vehicles with four-wheel drive) on Audi: factory workshop procedure for engines ADR, AFY, APT.
Workshop procedure for AUDI — the factory write-up, straight from real workshop data.
📋 Procedure
ℹ️ Torque figures below come verbatim from workshop data — always cross-check against your vehicle's factory manual before final tightening.
AFY APT ARG AVV
Plastic nut - 2 Nm
Tighten loosely to hold securing straps in place on fuel tank
Do not tighten fully until securing strap mountings have been secured
Securing straps
Removing and installing
=>Page
20-22
Note different lengths
Note correct position
Banjo bolt M14 - 30 Nm
1.2 Nm
Fuel filter
Installation position: Arrow points in through-flow direction
Supply pipe
To fuel supply pipe on fuel manifold
Seal
Renew
Banjo bolt M12 - 20 Nm
Protective plate
For fuel filler neck
With earth connection
Before screwing in securing bolt -Item
10
-, ensure that earth connecting lug is properly seated (flanged edge)
25 Nm
Earth connection
Position => Fig.
1
Ensure connector is seated properly on metal ring of fuel filler neck (check flanged edge on protective plate -Item
9
-)
After installation, use an ohmmeter to check the electrical connection between the metal ring on the fuel filler neck and a bare metal part on the body
Specification: approx. 0 ω.
Filler cap
Seal
Renew if damaged
Retaining ring
Rubber cup
Overflow hose
Expansion tank
Secure pipes to expansion chamber with adhesive tape
Fuel tank
Removing and installing
=>Page
20-22
Heat shield
For fuel tank
Rear edge secured to fuel tank with adhesive tape
Plastic nut - 2 Nm
Carrier plate
Heat shield
For fuel filler neck
Securing clip
Check securely seated
Plastic nut - 2 Nm
25 Nm
Fig.1
Position of gravity valve, vent valve and earth connection
1 -
Earth connection
2 -
Gravity valve
3 -
Filler neck
4 -
Vent valve
Position the earth connection as illustrated.
Ensure that connector for earth connection is properly seated on metal ring of fuel filler neck.
Before screwing in securing bolt -1-, ensure earth connecting lug -2- is properly seated (flanged edge) on protective plate -3- for fuel filler neck.
After installation, use an ohmmeter to check the electrical connection between the metal ring of the fuel filler neck and a bare metal part on the body.
Specification: approx. 0 ω
Fig. 2
Checking vent valve
Lever in released position: valve closed
Lever pressed in direction of arrow: valve open
TorqFix answers live for your specific car — tell it the engine code and it serves the matching sequence, torque figures and wiring for that exact variant.
Ask about my car →Other AUDI procedures
- Dismantling fuel delivery unit - 4 and 6-cyl. engine (code letters AAH, ABC, ABK, ACK, ACZ, ADA, ADR, ADW, AEJ)
- Dismantling fuel delivery unit - 4, 5, 6 and 8-cyl. engine (code letters AAH, AAN, ABC, ABH, ABY, ACK, ACZ, ADR, AEC, AEJ)
- Adjusting throttle cable - 8-cyl. engine (code letters ABH, AEC)
- Testing fuel gauge sender -G
- Checking fuel pump (electrical test) - vehicles with 6-cylinder turbo engine
- Removing and installing toothed belt – Audi · 56 torque figures
- Removing engine – Audi A8 D3 · 41 torque figures
- Removing camshaft timing chain from camshafts – Audi A6/A7 C7 · 38 torque figures
- Installing engine – Audi A8 D4 · 36 torque figures
- Removing and installing camshaft timing chain · 29 torque figures
Who makes these pages, and how
TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.
The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.
Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.
Seen a figure that does not match your manual? Write to us — we correct it and note when. support@torqfix.com
The story behind TorqFix →Workshop data on this page last updated 20 Sep 2026.