2017 Audi Q7 fuel system problems

Filed May 17, 2026 · Engine, Fuel system · MD

Front right Marker light defect alert keeps pooping up and sounding an audible alarm while I am driving even through the marker light is working perfectly. Drive train alert comes on after I add oil and the vehicle starts hesitating while I accelerate.I just got a tune up which included new spark plus and a new coils. Problem came back even after the tune up within 3000 miles. Excessive oil loss. I constantly have to add a quart of oil even after I just got an oil change and tune up. Seeing oil in the cover shield that covers the entire engine. Seems like the oil is blowing out of the cap area where you add in oil. These problems are very costly for a vehicle that I ordinary love. Please advise what can be done because I can not pay for any more repairs out of pocket. There is only 80,100 mile on the vehicle.

Filed Oct 13, 2025 · Engine, Fuel system · NY

I am submitting this complaint regarding a serious safety issue I experienced with my vehicle. Shortly after starting to drive, about 2 miles from my home, while traveling at approximately 25 mph, the vehicle suddenly began to shake violently and came to a complete stop at the intersection of Crescent Street and Astoria Boulevard. At that moment, I lost all control over the steering wheel—it completely locked up. The dashboard displayed the message: “Drive System Malfunction – Contact Service.” These diagnostic trouble codes (DTCs) appeared: •P2179 •P025C •P0087 •P0306 This incident posed a major safety risk, as I was unable to steer or move the vehicle in a high-traffic area. I am very concerned that this could happen again or to other drivers under more dangerous conditions. Please investigate this matter as it may indicate a serious defect that could affect others.

Filed Sep 9, 2025 · Engine, Fuel system · TN

My 2017 Audi Q7 Prestige 3.0T 6Cyl GAS CREC Supercharged has experienced repeated, serious failures involving the engine, powertrain, and fuel system. - At 72,000 miles, the vehicle developed coolant leaks under the supercharger, a failed water pump, and soaked drive belts. Repairs included multiple hoses, gaskets, and thermostat replacement. -Shortly after, repeated PCV/Oil system failures caused oil leaks, warning lights, and engine shaking. Repairs included PCV system, oil separator, valve cover gasket, breather pipes, and new spark plugs. - at 111,000 miles, the low-pressure fuel pump and relay failed, causing the vehicle to stall and lose all power while driving- a major safety risk. -Most recently, the engine developed a severe misfire in cylinder #4. Compression testing confirmed abnormally low compression (15 psi) due to a suspected cracked valve seat. The vehicle cannot be repaired without a complete engine replacement, quoted at ~$20,000. Safety Impact: - Vehicle has stalled suddenly in traffic due to fuel and engine failures, risking crash or injury. - Coolant and oil leaks present a potential fire hazard. - Loss of power and shaking while driving put my family and others at risk. Inspection/Confirmation: -All problems have been repeatedly confirmed and repaired by an independent Audi specialty service center (S&S Auto Repair). - Numerous invoices document coolant, oil, fuel, and engine failures. Warning Signs: - Multiple dashboard warning lights appeared either right before or during failure, including engine malfunction, coolant loss, and auto start/stop malfunction. These repeated failures at relatively low mileage suggest a design/manufacturing defect with the Audi 3.0T engine platform that compromises both safety and reliability. The issue seems to be widespread amongst other Audi owners with the same 3.0T engine- Per AudiWorld Forums.

Filed May 22, 2025 · Engine, Fuel system · TX

The gasket seals and the seals on the cylinder are not sealed causing fuel to peak from fuel injectors

Filed Mar 27, 2025 · Engine, Fuel system · GA

I am reporting a serious issue with the 2017 Audi Q7 involving excessive oil consumption. The vehicle burns 1 quart of oil every 1,000 miles or less, requiring me to constantly add oil between regular oil changes to avoid engine damage. This is not normal and poses a serious safety risk if the engine runs dry during operation. Audi denied my buyback request without inspecting the vehicle or reviewing service records. Instead, their solution has been to provide free oil top-offs, which proves they are aware of the problem but are avoiding a permanent fix or recall. Other Audi Q7 owners, even with newer models and low mileage, report the same defect. This is a manufacturing defect that makes the vehicle unreliable and unsafe for normal driving. This can cause the vehicle to stall or stop suddenly while driving, especially at high speeds or in traffic. That’s a major safety risk. If the oil burns too quickly, the warning may come too late. The need to constantly monitor and add oil makes the car unreliable for everyday use. Regular oil changes are meant to keep the car safe and working smoothly. But if oil is burning quickly between changes, the car can’t be safely operated on a normal maintenance schedule, which defeats the purpose of service intervals and puts extra responsibility and risk on the driver. Audi’s refusal to issue a recall or perform proper repairs is deceptive and dangerous. I request the federal safety agency to investigate this issue and determine whether a recall is necessary for this known defect. It also breaches Implied Warranty of Merchantability (UCC § 2-314)

Filed Dec 28, 2024 · Fuel system · PA

Every week the vehicle is saying add 1 quart of oil to continue driving

Filed Apr 4, 2024 · Airbags, Fuel system · 100,000 miles · FL

The contact owns a 2017 Audi Q7. The contact stated that upon a quick acceleration, the vehicle would hesitate upon depression of the accelerator pedal as an unknown warning light would appear on the instrument panel. The contact stated that the warning light would disappear upon restart of the vehicle. The contact also stated that the air bag warning light had also appeared on the instrument panel. In addition, the contact stated that the third-row seats would fail to adjust as needed. Upon investigation, the contact discovered the federal safety agency Campaign Numbers: 19V035000 (Fuel System, Gasoline), 16V955000 (Air Bags), and 16V641000 (Seats) which the contact linked to failures. The dealer was initially notified of the failure and the contact was informed that there were no recalls on the vehicle. The manufacturer was then notified of the failure and informed that contact that each of the recalls that were referred to was already serviced prior to the recent failures. The vehicle was not repaired. The failure mileage was approximately 100,000.

Filed Jan 23, 2024 · Electrical, Engine · WA

I was driving on the freeway at 60 MPH when pushing on the gas pedal, the Audi Q7 2017 started to de-accelerate from 60 - 30 and then went lower. The gas pedal then locked while still on a lane on the freeway and luckily I was able to quickly move to the shoulder of the freeway. From there my car proceeded to not start and kept flashing low battery, telling me to put it into drive. I could not put it into drive to start the car. There were NO WARNINGS as the car lost speed on the freeway and a mechanic has determined it is the fuel pump. This was a very scary incident as my two young children and dog were in the car and if I hadn't been able to move to the side quickly, we would have been stopped in the middle of a busy city freeway. Additionally, it took a tow truck two hours to reach us. I keep my car well maintained with service.

Filed Nov 1, 2023 · Engine, Fuel system · VA

Start/Stop system malfunction. The vehicle gave me this warning and the vehicle almost stopped completely in the interstate while doing 65mph. The warning disappeared after couple of times of turning the car back on, but it appeared once again. It looks that their are many complaints and a class act lawsuit on Audi about this problem but no recalls. It's dangerous and really mind blowing that nothing has been done on this issue.

Filed May 23, 2023 · Fuel system · NY

On my way to drop my child off at school, I stopped to refuel my Audi Q7. Upon inserting the nozzle to refuel the car, gasoline immediately began jetting out of the fuel door before the auto-shutoff kicked in, covering myself as well as my vehicle. Thankfully, the hot exhaust did not ignite the liquid or fuel vapor potentially causing a deadly fire. Despite having no fuel remaining, I was able to take the vehicle to our local mechanic where they discovered a TSB denoting this specific issue. The TSB was initially released 04/28/2016 for Model Year 2017 Audi Q7s. It was subsequently updated to include Model Year 2018 Q7s as well. This is a documented factory safety defect that denotes if this issue is to occur, to replace the whole fuel tank. Further research shows that a valve inside the non-wear, non-serviceable fuel filler neck can become dislodged and nearly completely block the filler neck from accepting fuel. This can cause a potential safety issue as the result of this blockage, the vehicle as well as driver can become doused in gasoline before a pump's auto-shutoff can kick in due to the shallow depth of the fault. The problem is known and documented as being an issue nearly immediately after the Model Year 2017 Q7 line was released. There was no prior warning or indication that this could occur at any time filling the vehicle.