Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSAUDI2009A6 BASEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 8 (FUEL SUPPLY SYSTEM)
2009 Audi A6 Base
Section 8 (Fuel Supply System)
2009 Audi A6 BaseSECTION Section 8 (Fuel Supply System)
WARNING: This page does not describe the selected car, but rather 15 other vehicles, including the 2008 Audi S4, 2008 Audi RS 4, 2008 Audi A4, 2007 Audi S4, and 2007 Audi RS 4. However, it is still accessible from the selected car via links, so may be relevant.
- 20 - Fuel supply system
- Notes for performing work on fuel supply system
- Fuel tank, vehicles with front wheel drive up to 06.03
- Fuel tank with attachments, assembly overview
- Fuel tank, draining
- Fuel tank with attachments, removing and installing
- Fuel delivery unit and fuel level sensor, assembly overview
- Fuel pump electrical, checking
- Delivery rate of fuel pump, checking (vehicles with 1.8L turbo engine)
- Delivery rate of fuel pump, checking (vehicles with 6-cyl. MPI-engine)
- Fuel delivery unit, removing and installing
- Fuel Level Sensor G , checking
- Fuel Level Sensor G , removing and installing
- Fuel Tank Lock Switch F314 , checking
- Fuel tank, vehicles with front wheel drive from 07.03 to 10.04
- Fuel tank with attachments, assembly overview
- Fuel tank, draining
- Fuel tank with attachments, removing and installing
- Fuel delivery unit and Fuel level sensor, assembly overview
- Fuel pump electrical, checking
- Delivery rate of fuel pump, checking (vehicles with 1.8L Turbo engine and 6-cyl. MPI-engine)
- Fuel delivery unit, removing and installing
- Fuel Level Sensor G , testing
- Fuel Level Sensor G , removing and installing
- Fuel Tank Lock Switch F314 , checking
- Fuel tank, vehicles with front wheel drive as of 11.04
- Fuel tank with attachments, assembly overview
- Fuel tank, draining
- Fuel tank with attachments, removing and installing
- Fuel delivery unit and Fuel level sensor, assembly overview
- Fuel pump electrical, checking
- Fuel Pump (FP) Control Module J538 , checking (vehicles with FSI engine)
- Delivery rate of fuel pump, checking (vehicles with 4-cyl. TFSI-engine)
- Delivery rate of fuel pump, checking (vehicles with 6-cyl. MPI-engine)
- Delivery rate of fuel pump, checking (vehicles with 6-cyl. FSI-engine)
- Fuel delivery unit, removing and installing
- Fuel pump adaptation after replacing fuel delivery unit, (vehicles with 4-cyl. TFSI engine)
- Fuel level sensor G , checking
- Fuel level sensor G , removing and installing
- Fuel tank, vehicles with all wheel drive up to 06.03
- Fuel tank with attachments, assembly overview
- Fuel tank, draining
- Fuel tank with attachments, removing and installing
- Fuel delivery unit and Fuel level sensor, assembly overview
- Fuel pump electrical, checking
- Fuel pump delivery quantity, checking (vehicles with 1.8L Turbo engine)
- Delivery rate of fuel pump, checking (vehicles with 6-cyl. MPI-engine)
- Fuel delivery unit, removing and installing
- Fuel Level Sensor G , checking
- Fuel Level Sensor G , removing and installing
- Fuel Level Sensor 2 G169 , checking
- Fuel Level Sensor 2 G169 , removing and installing
- Suction jet pump, function
- Suction jet pump in left fuel tank chamber, removing and installing
- Fuel Tank Lock Switch F314 , checking
- Fuel supply system, vehicles with all wheel drive from 07.03 to 10.04
- Fuel tank with attachments, component overview
- Fuel tank, draining
- Fuel tank with attachments, removing and installing
- Fuel delivery unit and fuel level sensor, assembly overview
- Fuel pump electrical, checking
- Fuel Pump (FP) delivery quantity, checking
- Fuel delivery unit, removing and installing
- Fuel Level Sensor G , checking
- Fuel Level Sensor G , removing and installing
- Fuel Level Sensor 2 G169 , checking
- Fuel Level Sensor 2 G169 , removing and installing
- Suction jet pump, function
- Suction jet pump in left fuel tank chamber, removing and installing
- Fuel Tank Lock Switch F314 , checking
- Fuel supply system, vehicles with all wheel drive as of 11.04
- Fuel tank with attachments, assembly overview
- Fuel tank, draining
- Fuel tank with attachments, removing and installing
- Fuel delivery unit and fuel level sensor, assembly overview
- Fuel pump electrical, checking
- Fuel Pump (FP) Control Module J538 , checking (vehicles with 4-cyl. TFSI engine)
- Fuel Pump (FP) Control Module J538 , checking (vehicles with 6-cyl. and 8-cyl. FSI engine)
- Fuel Pump (FP) Control Module J538 , removing and installing
- Fuel pump delivery quantity, checking (vehicles with 4-cyl. TFSI-engine)
- Fuel pump delivery quantity, checking (vehicles with 6-cyl. FSI-engine)
- Fuel pump delivery quantity, checking (vehicles with 8-cyl. MPI-engine)
- Fuel pump delivery quantity, checking (vehicles with 8-cyl. FSI-engine (Audi RS4))
- Fuel delivery unit, removing and installing
- Fuel pump adaptation after replacing fuel delivery unit, (vehicles with 4-cyl. TFSI engine)
- Fuel Level Sensor G , checking
- Fuel Level Sensor G , removing and installing
- Fuel Level Sensor 2 G169 , checking
- Fuel Level Sensor 2 G169 , removing and installing
- Suction jet pump
- Suction jet pump, removing and installing
- Fuel filter, servicing
- Fuel system, bleeding (1.8L Turbo engine)
- EVAP canister/leak detection system, servicing (Front and all wheel drive vehicles)
- EVAP canister/leak detection system, assembly overview
- Evaporative emissions (EVAP) canister, removing and installing
- EVAP canister/leak detection system, 8-cyl. FSI engine (Audi RS4), component overview
- EVAP canister, removing and installing (8-cyl. FSI engine (Audi RS4))
- Hose routing, EVAP canister/leak detection system - 1.8L Turbo engine
- Hose routing, EVAP canister/leak detection system 6-cyl. (MPI-engine)
- Hose routing, EVAP canister/leak detection system (6-cyl. FSI-engine)
- Hose routing, EVAP canister/leak detection system (8-cyl. MPI-engine)
- Hose routing, EVAP canister/leak detection system (8-cyl. FSI engine (Audi RS4))
- Leak detection system
- Diagnostic leak test, performing
- Fuel supply and tank ventilation systems, checking for leaks
- EVAP system, checking using tester KLI 9210
- Leak Detection Pump (LDP) V144 , checking (vehicles with MPI-engine)
- Leak Detection Pump (LDP) V144 , checking (vehicles with FSI and TFSI-engine)
- Leak Detection Pump (LDP) V144 , removing and installing
- Accelerator linkage, servicing
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.