2012 Audi Q5: engine stalls while driving

Filed Aug 11, 2025 · Engine · 160,000 miles · CA

The contact owns a 2012 Audi Q5. The contact purchased the vehicle at an auction, and while leaving the auction site and driving 10 MPH, the vehicle stalled. The contact was able to coast to the side of the road. No warning lights were illuminated. The contact jumped-started the vehicle, and after entering the freeway, the vehicle vibrated and failed to accelerate as intended while depressing the accelerator pedal. The failure persisted until the contact arrived at the residence. The vehicle was taken to an independent mechanic; however, the vehicle was not diagnosed. The vehicle remained unrepaired for several days. The contact went to pick up the vehicle, and the independent mechanic stated that the vehicle had been repaired. The contact stated that a week later, while diving at an undisclosed speed, the failure recurred. The vehicle was taken back to the independent mechanic to be diagnosed, and the contact was informed that the spark plugs had failed and caused the engine to fail. The contact stated that the independent mechanic had replaced the spark plugs and that the vehicle had been repaired. The contact was unsure if the spark plugs had been replaced. The independent mechanic refused to repair the vehicle. The contact stated that the failure persisted. The manufacturer was not made aware of the failure. The failure mileage was approximately 160,000.

Filed Dec 3, 2024 · Engine · SC

• Excessive oil consumption • Engine knocking • Illumination of the check engine light, possibly for cylinder misfire • Engine stalling- • the pistons unexpectedly fail, drivers may also experience a sudden loss of engine power while operating their vehicles. This can pose a safety risk as it may become difficult for drivers to brake, accelerate or control the steering wheel. Drivers are believed to have experienced problems with the pistons well before they should, with some seeing engine failure before the 75,000- mile mark. Audi Vehicles Burning Too Much Oil A number of Audi drivers have posted complaints online that their Q5 vehicles are burning more oil than they should, an issue attorneys suspect could be related to a defect in the pistons. A sample of these complaints can be found below [sic throughout, emphasis ours]: My Audi Q5 2012, like all suffers from excessive mass oil consumption. A Dealer did the oil consumption test and said the piston and rings need to be replaced. I ve Already spent over $1K on crankshaft repairs etc. Will AoA to pay for new piston and rings? Its a $6K repair that I am unwilling to pay because it should not be going through this crap for such an expensive car.” This "benefit" likely won't me customers due to the age of the vehicles and they don’t seem to care. Not to mention owners will still be stuck with paying a percentage for repairs. I bought a 2012 Audi Q5 in in 2015…For the first 20,000 miles of owning this car, it was my dream car and was all I had hoped for. Then, the check engine and oil light game started. At first, adding oil meant that it would it go another 1500-2000 miles without issue. Then, around 75k, it went to 500 to 750 miles. Once it hit 95k, it dropped to every 400 to 600 miles that it needed oil. I am at 118k and desperately want to dump this lemon. Unfortunately, I have payments on this garbage car. I've spoken with a local mechanic about it and he says the fix is replacing the engine.

Filed Mar 7, 2023 · Engine, Fuel system · 104,000 miles · MD

The contact owns a 2012 Audi Q5. The contact stated that on several occasions while driving at various speeds, the vehicle stalled. The vehicle was taken to the dealer where it was diagnosed that the fuel injection intake valve needed to be replaced. The vehicle was repaired; however, the failure recurred. The oil warning light, the EPS warning light, TIPM warning, and the check engine warning light were illuminated. The vehicle was taken back to the independent mechanic where it was diagnosed that the fuel intake valve and the oil pan needed to be replaced. The vehicle was repaired. The dealer was not notified of the failure. The manufacturer was not notified of the failure. The failure mileage was approximately 104,000.

Filed Aug 17, 2019 · Transmission · OH

The car would not start when I went to pull out of garage. The car was stationary. On the 8th attempt it started and I drive it to work. It felt like it was going to stall out when I stopped or slowed down. I put the key in ignition it would go on but not start and turn off. The epc light went on. This is the first and only time this has happened however it still feels like it is going to stall out when I am in pro or stopped at a light or when I slow down under 10 MPH. I took it to the audi dealership and was told it was the timing chain which is a 2600.00 repair.

Filed Aug 17, 2019 · OH

The oil light comes on approximately every two weeks saying it's safe to drive but add oil. This has been going on for since 2 months after I purchased the car. I add a quart of oil each time and when I took it in to get checked I was told this car was checked for this issue previously. They said there are no leaks that the car is just burning oil. They gave no valid reason. The car has been checked twice for this oil problem and no results. When I was turning onto the highway a month ago the car light came on and said turn off vehicle now. No warning other than add oil car is still safe to drive. I pulled to the side of the highway and the car stalled out and turned off automatically before I was in park. Only going about 5-10 MPH. After a few minutes I tried to restart a few times and it finally started. I went home and added oil to it yet again. I need to add oil when're the light comes on as to not have it shut off on me.

Filed Aug 29, 2014 · Electrical · 12,000 miles · IA

Tl* the contact owns a 2012 audi q5. While the vehicle was idling at a traffic light, the "change key battery" warning indicator illuminated and the engine stalled. The vehicle would not restart while the key was in the ignition; however, it restarted when the key fob was pressed. The failure only occurred once. The dealer stated that this type of failure occurred when the battery inside the key fob was not charged. The key fob was repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 12,000.