2015 Audi Q5

The contact owns a 2015 Audi Q5. The contact stated that the rear subframe was extremely rusted and could not pass a safety inspection. The vehicle was driven to the dealer, but the vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 82,351.

Engine consumed a quarter of oil every 300 miles. The EPC light and engine light illuminated. The vehicle went into limp mode. I had the vehicle towed to a certified mechanic.Vehicle was inspected by a certified mechanic and will need a new engine. Engine only has 85,000 miles and oil was changed every 5000 miles.

The cooling system failed without warning! As I’m driving on the highway my vehicle began smoking! I smelled a burnt smell! Upon getting off the highway , I noticed my coolant had leaked almost completely out! I check my vehicle every morning before work as I drive through three counties to get to work and my coolant was full as I had just topped it off that morning! Upon inspection it was found from a local mechanic to be the water pump! My truck was fine last month upon getting a n inspection.

The contact owns a 2015 Audi Q5 equipped with Firestone Tires, Tire Line: Firehawk A/S, Tire Size: P235/55/R19, DOT Number: 1RBE793E9. The tires were purchased in 2022. While the contact’s wife was driving at an undisclosed speed, there was an abnormal sound coming from the vehicle, and the rear driver’s side tire had a blowout. The contact's wife was able to pull over to the side of the road. The contact was unsure if the tire was replaced or if the vehicle was driven to the residence nearby with the blowout tire still on the vehicle. The vehicle was taken to a tire specialty shop, where the rear driver’s side tire was replaced. On another occasion, while the contact's wife was driving at an undisclosed speed, the driver heard an abnormal sound before rear passenger’s side tire had a blowout. No warning lights were illuminated. A passerby assisted the contact's wife in changing the tire. On another occasion, while the contact’s wife was driving at an undisclosed speed, the driver’s side front tire had a blowout. The contact changed the flat tire once the vehicle was driven back to the residence. Upon inspection, the contact noticed that the inside of the tire, where the bead of the tire meets the rim, was cracked. The contact noticed tire crazing all over the tire, and that the inside of the tires showed deep cracks. The contact stated that the other two tires showed the same failure. The tire manufacturer was made aware of the failure. The tire failure mileage was approximately 130,000. The vehicle failure mileage was unknown.

i have had necessary service checks; however, the spark plugs keep getting burned out. the car is barley 10 yrs old i have replaced the spark plugs 4 times this year alone. Its like every 2 months for the last year. this is abnormal

1.What component or system failed or malfunctioned, and is it available for inspection upon request? EPC light is on, car stalled on highway towed in Audi Dealership Jan/2023, On August 18, 2025 The vehicle experience catastrophic engine failure, electrical issues, coolant system defects,and currently inoperable and safety risk. 2.How was your safety or safety of others put at risk? vehicle stalled on street potentially public safety risk. 3.Has the problem been reproduced or confirmed by a dealer or independent service center? Yes, Audi dealership service center recommendation buy $22,000 for brand new engine . 4.Has the vehicle or component been inspected by manufacturer, police, insurance representatives or others? Inspected by Audi Dealership Service Center, and State Farm claims representative. 5.Were there any warning lamps, message or other systems of the problem prior to the failure, and when they first appear? When did first appeared a problem EPC light goes off and on January 17, 2023, loss of engine power, oil/coolant leaks, and etc.

Rear subframe rusted out at only 85,000 miles

2015 Audi Q5 Quattro (all wheel drive). During recent inspection the vehicle was found to have extreme corrosion, cracking, and structural failure of the rear subframe and subframe crossmember. The rear steel subframe is manufactured as an assembly. The rear subframe assembly supports all of the rear suspension components and rear drivetrain and drivetrain components. My vehicle is always garaged and no other corrosion was found during inspection of the entire vehicle. The finding is a manufacturing defect that is only isolated to the rear subframe assembly of the vehicle. Due to the extreme nature of corrosion and cracking found on the subframe assembly this should be considered a high priority warning for Audi Q5 owners. A total failure of all rear suspension and drivetrain components may result.

System does no longer work. Audi Montgomery inspected the vehicle and deamed that both side blind spot warning components have failed. People come to trust the system and when it fails they would lane change, not be warned and cause an accident. Dealer comfirmed failed components. Opened a concern with Audi USA and was told I am responsible for repairing the failed system. 6/19/2025.

To Whom It May Concern, I am writing to formally report a serious safety issue involving my 2015 Audi Q5 TDI (VIN # [XXX] ), which has developed severe corrosion on the rear subframe. I am the original owner of this vehicle, which has 92,700 miles and has been garage-kept and exclusively serviced by authorized Audi dealerships since purchase. On [XXX], following a failed Virginia State safety inspection, the vehicle was inspected by Audi of Chantilly, VA. Their service department confirmed that the rear subframe is cracked due to extensive rust and recommended immediate repair. I have attached both the inspection report and supporting photographs. This is not an isolated case. Numerous Audi Q5 owners have documented similar corrosion on the rear subframe, often attributed to a plastic cover that traps moisture and accelerates rusting. This appears to be a design defect with potentially dangerous implications. As it stands, the vehicle is not drivable. The compromised subframe poses a serious risk of structural failure while in motion, increasing the potential for loss of control, a crash, or injury. The dealership has estimated repairs at over $9,000, which I am currently seeking coverage for through Audi Customer Service. However, Audi has indicated that their corrosion warranty covers only body panels—not subframe components—despite the fact that the defect stems from their design. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2015 Audi Q5. The contact stated that there was an abnormal leak underneath the vehicle. In addition, the contact stated that the vehicle failed to start up as intended. The contact stated that the coolant reservoir was refilled; however, the failure persisted. The vehicle was diagnosed on the scene by an independent mechanic, who determined that water pump had failed. The independent mechanic related the failure to NHTSA Campaign Number: 18V229000 (Engine and Engine Cooling); however, the VIN was not included. The local dealer was not contacted. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 140,000.

Common problem with engine cooling systems and oil systems failing. Failing emissions because of this and overheating with risk of fire. Common problem with the Q5s. Which some of them are recalled but not my 2015 q5 premium for some reason.

My words: An overheated electrical connection near the fuel tank overheated, thus cutting off the fuel pump system. This is similar to other fuel pump recalls with Audi A3 vehicles. BEGINNING OF MECHANIC REPORT: Concern? = Customer states he was on a trip driving on the highway, parked it and it wouldnt restart. Vehicle is cranking and not starting. Codes were pulled from the vehicle is there are fuel pump related codes. Cause = Confirmed concern vehicle does not start. fault codes P0087, p3073, p3043, removed rear seat and checked pump control module. found power supplied to control module but no power to pump. also found connector to control module melted. advise replacement of control module, in tank pump, and control module connector to start." END OF MECHANIC REPORT The markings on the fuel pump control module are as follows, line by line: "VW emblem" "Audi emblem" Germany 1j0 973 726 >PBI< FEP 1/3 3699

Recently purchased a used vehicle from this dealership that there is a major issue with the drive train including the cv axel and also an issue with the tires that are on the vehicle. One of the tires had gone flat so I took it to the local Les Schwab to have it inspected and was told that I could not repaired it and that they could not sell me and put on the one tire because the vehicle manufacturer size was not met and that it can cause a danger on my 2015 Audi Q5 premium plus. The tire size that was on the vehicle that was purchased is 255/35ZR19, the manufacturers size is 235/55R19 per the les Schwab it can damage the vehicle and decrease the performance of the function of the vehicle which also impacts the speedometer reading and also the mileage tracking adding additional strain on the vehicle as well as decreasing its value faster. The vehicle is an all-wheel drive car and have the incorrect size is a safety concern as well as increasing the amount of mile that are driven that are artificial, also messing with the speedometer reading to have to go 10 mile over the limit to make it go the correct speed, this makes the computer think the vehicle is driving more mile than it is. I have informed the dealer of the issues, and they have refused to help and state that there is nothing to be concerned about. This information was not disclosed to me when purchasing the vehicle.

Level sensor on left rear suspension failed, causing headlights to be pointed downward and not safely lighting the road ahead. The sensor failed due to poor design, metal-to-metal ball and socket linkage in a corrosion-assured location under the car. When the metal-to-metal ball and socket corroded and froze, resulting load caused the sensor linkage to break. A search of Audi forums indicates that this problem is not uncommon, and this same sensor design is used in other Audi models and variants.

The contact owns a 2015 Audi Q5. The contact stated when the vehicle was driven to the independent mechanic for an inspection for a possible oil leak, the mechanic observed that there was a significant amount of corrosion on the rear sub frame of the vehicle. The contact was advised by the mechanic that the vehicle was unsafe to drive due to the extreme corrosion of the rear sub frame. The vehicle was not taken to a dealer to be diagnosed or repaired. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 110,000.

The Audi Q5 was new in 2015 and I am the original owner. The vehicle has 135,600 miles on it. During an oil change visit to my repair shop, they informed me of significant rust corrosion to the subframe. My Audi dealer in Chantilly acknowledged that subframe rust was a design flaw on model years 2014, 2015, and 2016. Audi will not cover this under their 12 Year Rust Corrosion Perforation warranty. I believe this to be a significant safety hazard to the owners and their families who are still driving their Q5 without knowledge of the impending disaster. Impending disaster could be a subframe collapse at highway speed.

Audi Dealer inspection report said severe rear sub frame rust is a safety issue and requires replacement

Sub frame is rusted out. Major safety issue. Confirmed by 3 independent auto repair shops. Removing and replacing the rear sub frames. $ 1800.00

I was driving down the road when the steering stop working and I could not control the direction that the tires moved. The direction of steering would not respond to my movements and I was unable to control the car. I was able to break and bring the car to a stop, however, if I were moving at a much faster speed this would have been extremely dangerous. I brought the car to our mechanic and we were informed that the tie rods were broken, the threading on the attachment pieces was completely rusted out and the threads were bare. The piece simply came apart and was malfunctioning. No warning signs or service lights came on in the vehicle before this happened and we had no indication that there would be an issue with the steering when operating the vehicle. Our mechanic told us this was one of the most dangerous things he's ever seen happen in a car and that our life was at risk. We regularly have our car inspected and serviced and there was no indication that this would happen. Our car had a major engine problem in August 2023 and was at the Valenti Audi Dealership in Waterbury, CT, during that time the car was inspected and we were not told the tie-rods had any problems.