Audi A3 overheating problems

Filed Mar 9, 2026 · Engine, Transmission · CA

Blown turbo with propeller broken off lodged into the pre-catalytic converter, which caused damage to the catalytic converter/exhaust requiring a new turbo and a complete new catalytic converter and exhaust system. They also found major oil leaking from the upper timing cover gaskets, which I later found documented on the accounting service record as not repaired at that time few months from my purchase. These known engine damages were a major contributor to the engine failures that I’m faced with today. Oil starvation from known oil leaks, damaged gaskets, and failing parts caused oil starvation of the turbo, constant overheating with coolant and oil problems since purchasing the car and which ultimately froze the turbo and snapped the propeller. I’m still struggling without an operating vehicle for over a year, and trying to afford these expensive repairs, which should’ve been covered under the 15 year PZEV warranty and/or recalls of these known parts failures. It was at the dealership in plenty of time for the SMOG certification, which was the sole reason for the appointment and it being at AudiSD, which they refused to do. These are extremely expensive repairs, these are known issues with several class action lawsuits and recalls behind them, yet they simply refuse to take ownership, deny any support, and making excuses for their lack of responsibility. I asked several times for them to do the right thing, take the car back and refund my money or give me an equivalent car to what I was promised when I purchased it, they refused and no management has been involved. I deserve to be compensated for my time over the last several years dealing with these repeated issues, compensation for all the parts I have been forced to buy, refunded the amounts I’ve paid for technicians to truly diagnose the problem and for the repairs I’ve yet to be able to afford, as well as the towing and other charges I have incurred as a result of purchasing this vehicle from AudiSD

Filed Feb 20, 2026 · Fuel system · WA

While driving at highway speeds, a warning light appeared as well as an alert indicating the car was limited to no more than 4000rpm. After coming to a stop, a strong smell of gasoline was noticed in the passenger compartment. Continued driving home uneventfully but the strong smell of gas persisted. The next day I drove the car to a mechanic. Their inspection notes the following: The technician verified the customer concern of a fuel smell. He performed a fault scan, finding codes for low fuel pressure. He inspected the vehicle, finding a major fuel leak under the intake manifold, most likely from a cracked fuel rail. The system is supposed to operate at 125 bar of fuel pressure, but is currently at 9-11 bar. The high pressure fuel pump is operating at 100% duty cycle, which means it has overheated and been damaged. Metal shavings from the fuel pump then ends up inside of the injectors, ruining them. The low pressure fuel pump may be ok, but it is unclear at this time. **RECOMMEND REPLACING FUEL RAIL, HIGH PRESSURE FUEL PUMP, INJECTORS WITH SEALS, AND PRESSURE SENSOR **MAY NEED LOW PRESSURE FUEL PUMP They also noted that the leaking fuel could cause a fire hazard. The fact that this fuel leak happened at only 98,750 miles and that the car continued to be drivable with fuel spraying all over the engine compartment is extremely concerning.

Filed Aug 7, 2025 · Engine · 122,000 miles · NM

The contact owns a 2015 Audi A3. The contact stated while driving at an undisclosed speed, several unknown warning lights illuminated and the engine overheated. There was an abnormal sound coming from the transmission. Additionally, the vehicle was consuming abnormal amounts of coolant without signs of a coolant leak. The contact stated that the engine seized. The coolant reservoir was inspected and there was no coolant in the reservoir. While attempting to start the vehicle, the vehicle failed to start. The vehicle was towed to the residence. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The contact recently replaced the coolant pump, coolant control valve and the expansion tank. The manufacturer was made aware of the failure. The contact referenced the federal safety agency Campaign Number: 16V619000 (Engine and Engine Cooling); however, the VIN, nor the model were included. The contact was advised to contact the federal safety agency Hotline to report the failure. The failure mileage was approximately 122,000.

Filed May 16, 2022 · Engine · MD

Coolant leak from faulty water pump. This is a known issue from numerous models of Audis and has been the subject of recalls and extended warranty campaigns - but not on this particular model. I was forced to pay for the replacement of this known faulty part out of pocket.

Filed Mar 13, 2022 · Airbags, Engine · CA

I had purchased the car back in August 17th 2021 my power steering my brakes my airbag light and the fuel system fuel leak started happening all at once water was draining out of the middle of the engine . It overheating the engine speed ball down and I automatically I instantly pulled over and turned it off and towed it home 2 days after I bought it. these are also recalls my Audi 2009-a3 2.0 tfsi s tronic has been sitting in my friends driveway for 7 months now because I cannot take the car anywhere I cannot move the car anywhere I cannot start the car and I don't know what else to do so I do need your help I should be eligible it says my VIN number matches the eligible subject vehicle my VIN number is in your system but my car is not showing up it shows up but it's not showing up as a recall or included in the class action settlement if you have any questions please call me [XXX] at [XXX] if you have any input thank you. I do love my Audi I love it very much the day I got to drive it and the only day I got to drive it I was very happy I thought with it until I get it fixed I will not be happy again INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

Filed Jan 25, 2022 · Electrical · WI

The Auxiliary PTC Electric Cabin Heater fails and causes an overheat/fire condition. We own a 2015 Audi A3 TDI Premium Plus sedan. This vehicle has a diesel engine. Audi fitted A3 models that have a diesel engine with an auxiliary electric cabin air heater. This heater helps to warm the cabin and provide defrost capabilities on days when the temperature is below 7 degrees C. This heater in our vehicle failed due to melting at the wiring harness connection lugs. This melting caused an overheating condition to occur. On cold days we would notice a terrible burning plastic, rubber smell coming from the air vents inside the cabin. Once the car was warmed up and the electric heater was disabled by the cars ECU (computer) the smell gradually went away. The process was repeated the next day, but the smell was worse. We took the vehicle to Zimbrick European Audi in Madison, WI. They found the electrical issue with the Auxiliary Electric Cabin Air heater. In researching this issue we found there are MANY user reports of the same failure on Volkswagon Audi Group vehicles. Audi issued a safety recall for the SAME problem on Audi A4, A5 and Q5 vehicles under Audi Safety Recall Code : 80C5 with the federal safety agency document number being: RCRIT-17V622-6265.pdf This very same problem currently affects my Audi A3 TDI. I have found numerous other people reporting the same issue with VW Golf TDI models, VW Passat TDI models and Jetta TDI models. Examples are located here: https://forums.tdiclub.com/index.php?threads/burning-smell-from-heat.513304/ https://www.youtube.com/watch?v=_6tEwBzZIxs The problem is most likely the same materials defects that occurred with the Audi A4, A5 and Q5 models. The third party supplier of the Auxiliary Electric Cabin Air Heaters used TIN for some of the components. These substandard components lead to product failure and ultimately thermal overload, melting plastic/rubber and potentially a fire.

Filed Oct 21, 2020 · Airbags, Electrical · 80,000 miles · TX

Check engine light cuts on with overheating and eps error when starting car sometimes. When you shut off car it cuts off and returns to normal. It started last year and has continued, I was told it may be a sensor shortage.

Filed Feb 15, 2017 · Engine · 75,000 miles · MA

Coolant pump- audi action code-19l2-"the coolant pump may develop a small leak over time." my audi suffered a coolant leak and had to fix for $1100 in diagnosis/repairs. I repaired it on my own and later I learned that there was a recall from audi. I need to get my reimbursement for the money I put up to fix coolant leak.

Filed Jan 12, 2017 · Electrical, Lights · 72,000 miles · CA

After starting the car and moving a short distance, the dash display showed multiple warnings regarding the exterior lights. Approximately 12 exterior lights had all gone out at once. After some research on the issue I checked the fuse box in the engine bay and fuse f16 (30a) had melted with residue on the contact but not failed. The contact on the fuse box also had residue and the surrounding plastic was melted as well. The same exact issue occurred on my 2009-2011 vw tiguan and a recall was issued (the federal safety agency campaign number: 13v569000 and vw recall number: 97z9/2v). The part recalled in the tiguan is the same exact part used in the 2012 audi a3 (part #: 1k0937125d). Aoa should recall the part as was done by vw. There are multiple safety issues that are caused by this failure such as loss of exterior lighting while driving at night and possibility of fire caused by overheating. Attached are photos of the melted fuse and fuse box as well as the vw tiguan recall notice.

Filed Oct 8, 2015 · Electrical, Fuel system · 75,000 miles · VA · fire

Tl* the contact owns a 2011 audi a3. While driving at various speeds, the headlights suddenly shut off and the service vehicle sensor light illuminated. The vehicle was taken to an independent mechanic who discovered that a fuse panel had overheated and melted. The contact also indicated that the vehicle experienced fuel leaking within the engine compartment. The vehicle was not repaired. The manufacturer was notified. The failure mileage was 75,000.