⚠️ Audi manufacturer position
Follow erWin fuel supply repair group; drain before tank drop.
Vehicle information
| Make | Audi |
|---|---|
| Model | Q5 |
| Market status | Sold new in the US 2009–present |
| Body styles | Compact luxury SUV |
| Generations | 8R, FY (2018–present), next gen 2025+ |
| Engine options | Gasoline: 2.0L TFSI, 3.0L V6 Diesel: 3.0L TDI (US years limited) Hybrid: Q5 PHEV (US) |
| Fuel tank capacity | 18.5–19.8 gal |
| Fuel system | Gasoline DI; TDI common-rail where equipped |
| Access method | Pump module access from cargo floor — erWin by model year |
| Anti-siphon | Yes |
| Service portal | Audi erWin / ELSA |
Misfuel risk High
Q5 TDI at passenger diesel pumps—gasoline nozzle mis-selection is a known US failure mode.
If the engine was not started
Tow; no ignition ON.
If the engine was started
TDI high-pressure hardware inspection mandatory.
Access procedure
- Disconnect battery ground strap; ignition OFF.
- Briefly open and close fuel door to relieve capless system pressure if equipped.
- Release fuel pressure per erWin/ELSA (relay or scan tool—avoid cranking with wrong fuel).
- Access fuel pump module (often under rear seat or cargo floor) per model erWin group.
- Drain tank using VW-approved fuel cart connected at module service ports.
- Replace fuel filter; inspect low-pressure and high-pressure components per contamination severity.
- Reinstall, reconnect battery, prime system, leak-check, and clear adaptations if required.
Frequently asked questions
What should I do if I put the wrong fuel in my Audi Q5?
Do not start the engine or cycle the ignition to RUN if the fuel pump may prime. Have the vehicle recovered to a USIFDA Certified Repair Facility and follow Audi service information for tank draining and fuel system inspection.
Does Audi warranty cover misfuel damage on a Q5?
No. Audi warranties exclude damage from improper or contaminated fuel. Repairs are typically customer-pay; document the OEM-prescribed remediation procedure.
Can fuel be removed from a Q5 through the filler neck?
Audi documents fuel recovery via the fuel pump module access and/or tank removal using approved equipment—not filler-neck siphoning. Follow ISTA/TIS or erWin procedures for your model year.
Need professional misfuel recovery?
Find a certified operator or read consumer guidance for your next steps.
Find an operator Consumer guidance