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.
2012 Audi A8 BaseFACTORY OEM SERVICE PROCEDURE
Fuel Supply System
- 20 Fuel Supply
- Fuel Tank
- Fuel Delivery Unit/Fuel Level Sensor
- Overview - Fuel Delivery Unit/Fuel Level Sensor
- Fuel Delivery Unit/Fuel Level Sensor, Removing And Installing
- Fuel Pressure Regulator, 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
- Fuel Level Sensor 3 -G237-, Checking
- Fuel Level Sensor 3 -G237-, Removing And Installing
- Fuel Filter
- EVAP System
- Connection Diagram - EVAP System
- Overview - EVAP System
- Evaporative Emission (EVAP) Canister, Removing And Installing
- Honeycomb Filter, Removing And Installing
- Fuel Tank Leak Detection
- Fuel Tank Leak Detection Control Module -J909-, Removing And Installing
- Fuel Tank Pressure Sensor -G400-, Removing And Installing
- Fuel Tank Pressure Sensor -G400- Air Filter, Removing And Installing
- Fuel Pump
- Accelerator Pedal Mechanism
- Special Tools
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
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