2015 Audi Q5 problems

UNKNOWN OR OTHER

Bernardi Audi’s technician confirmed the rear subframe is rotted through (Repair Order #XXX/ Diagnostic Video: [XXX]), making the vehicle unsafe to drive.Given that this structural perforation falls within the window of Audi’s 12-Year Limited Warranty Against Corrosion Perforation, have requested assistance to cover cost from Audi. No responses received to Audi USA from 5 emails sent since XXX. Class Action lawsuit for rotten subframe and danger it creates in process but totally disregarded by Audi. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11757818 — an unverified report by a vehicle owner.

STRUCTURE:BODY

Vehicle failed inspection due to premature rust perforation damage of rear subframe caused by a plastic cover trapping water against the metal. Vehicle otherwise passed inspection.

NHTSA complaint #11739494 — an unverified report by a vehicle owner.

STRUCTURE:FRAME AND MEMBERS

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.

NHTSA complaint #11713660 — an unverified report by a vehicle owner.

TIRES

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.

NHTSA complaint #11711288 — an unverified report by a vehicle owner.

POWER TRAIN

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.

NHTSA complaint #11705718 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

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.

NHTSA complaint #11705718 — an unverified report by a vehicle owner.

ENGINE

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.

NHTSA complaint #11705718 — an unverified report by a vehicle owner.

ENGINE

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.

NHTSA complaint #11702822 — an unverified report by a vehicle owner.

FUEL/PROPULSION SYSTEM

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.

NHTSA complaint #11701580 — an unverified report by a vehicle owner.

ENGINE

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

NHTSA complaint #11683204 — an unverified report by a vehicle owner.

SUSPENSION

Rear subframe rusted out at only 85,000 miles

NHTSA complaint #11682386 — an unverified report by a vehicle owner.

SUSPENSION

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.

NHTSA complaint #11681486 — an unverified report by a vehicle owner.

ENGINE

Vehicle: 2015 Audi Q5 2.0T VIN: [XXX] At around 70,000 miles, my vehicle began consuming engine oil abnormally. I received a low-oil warning and had to add 1 quart every 1,000 miles. I first approached an authorized Audi dealer at 75,000 miles, who inspected the vehicle and stated this was “normal for older vehicles” and found no issues. However, the problem worsened rapidly. By 79,000 miles, I visited a second Audi dealer who acknowledged that this was a common problem in this engine type. They quoted me $16,000–$20,000 for a full engine replacement, stating they could not replace pistons alone. At 80,000 miles, my car now consumes 1 quart of oil every 200 miles. The oil warning light comes on frequently. I am forced to carry oil and top off multiple times per week. This is not normal wear for a luxury vehicle with regular maintenance. This condition creates multiple safety risks: •Sudden engine seizure or power loss if oil runs too low, especially while driving at highway speeds. •Loss of steering/brake assist due to oil pressure failure. •Increased fire risk from leaks or overheating. •Frequent roadside stops to add oil, risking exposure to traffic. •Distraction while driving due to monitoring oil levels. •Environmental hazard from oil spills. The engine remains available for inspection. The vehicle has only been inspected by Audi dealerships. Audi should be held accountable for a defect that compromises safety and reliability at relatively low mileage. I urge NHTSA to investigate and take appropriate action. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11669364 — an unverified report by a vehicle owner.

FUEL/PROPULSION SYSTEM

Vehicle: 2015 Audi Q5 2.0T VIN: [XXX] At around 70,000 miles, my vehicle began consuming engine oil abnormally. I received a low-oil warning and had to add 1 quart every 1,000 miles. I first approached an authorized Audi dealer at 75,000 miles, who inspected the vehicle and stated this was “normal for older vehicles” and found no issues. However, the problem worsened rapidly. By 79,000 miles, I visited a second Audi dealer who acknowledged that this was a common problem in this engine type. They quoted me $16,000–$20,000 for a full engine replacement, stating they could not replace pistons alone. At 80,000 miles, my car now consumes 1 quart of oil every 200 miles. The oil warning light comes on frequently. I am forced to carry oil and top off multiple times per week. This is not normal wear for a luxury vehicle with regular maintenance. This condition creates multiple safety risks: •Sudden engine seizure or power loss if oil runs too low, especially while driving at highway speeds. •Loss of steering/brake assist due to oil pressure failure. •Increased fire risk from leaks or overheating. •Frequent roadside stops to add oil, risking exposure to traffic. •Distraction while driving due to monitoring oil levels. •Environmental hazard from oil spills. The engine remains available for inspection. The vehicle has only been inspected by Audi dealerships. Audi should be held accountable for a defect that compromises safety and reliability at relatively low mileage. I urge NHTSA to investigate and take appropriate action. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11669364 — an unverified report by a vehicle owner.

LANE DEPARTURE: BLIND SPOT DETECTION

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.

NHTSA complaint #11668160 — an unverified report by a vehicle owner.

SUSPENSION

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)

NHTSA complaint #11667941 — an unverified report by a vehicle owner.

ENGINE AND ENGINE COOLING

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.

NHTSA complaint #11663041 — an unverified report by a vehicle owner.

ENGINE

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.

NHTSA complaint #11654919 — an unverified report by a vehicle owner.

SUSPENSION

I've reported multiple times to my dealer about the oil comsumption back in 2022 and work was performed on the vehicle in the prior year to fix leak and brake noise issue since approx 2021 on my 2015 Q5 that currently only has 65,000 miles. No warning indicator presents regarding the brakes. However oil indicator and engine light icons display. I'm constantly checking the oil indicator level to see how much is still in the and then add add once it shows thats its extremly low. I have to do this everytime I am about to use the car. This can be dangerous at times since there's no indication that its very low and its not seen unless you go into the "car" section that shows the level, it has no alert display for the level. All required diagnostic and maintenance services have been performed with the dealer. When inspecting the brake issue they always come back with no findings say that no issue could be found, howeve when I'm driving it, it sqeeks and makes a grinding sound all the time. This has been going on for quite a few years. As for the oil consumption issue, this isssue has been in recent years and both times this has been looked into by the dealer I was informed that its not covered under any manufacturers warranty and would cost me approx. $10,000.00 for them to repair it or I could trade it in. This is a very expensive luxury car and at this low milage shouldn't have these types of issue. I've seen on various car sites that both the oil comsumption and piston issue is a known issue with this model Audi and that issue occurs aournd 60,000 miles but was rectified for the models that came after 2015. I wish I had know this before making this purchase. Now the driver seat adjusting panel is broken, this came out of no where about four weeks ago with no warning. I haven't received any recall notifications since my Audi Care coverage expired, not sure why this would stop because I didn't continue this service.

NHTSA complaint #11628463 — an unverified report by a vehicle owner.

ENGINE

I've reported multiple times to my dealer about the oil comsumption back in 2022 and work was performed on the vehicle in the prior year to fix leak and brake noise issue since approx 2021 on my 2015 Q5 that currently only has 65,000 miles. No warning indicator presents regarding the brakes. However oil indicator and engine light icons display. I'm constantly checking the oil indicator level to see how much is still in the and then add add once it shows thats its extremly low. I have to do this everytime I am about to use the car. This can be dangerous at times since there's no indication that its very low and its not seen unless you go into the "car" section that shows the level, it has no alert display for the level. All required diagnostic and maintenance services have been performed with the dealer. When inspecting the brake issue they always come back with no findings say that no issue could be found, howeve when I'm driving it, it sqeeks and makes a grinding sound all the time. This has been going on for quite a few years. As for the oil consumption issue, this isssue has been in recent years and both times this has been looked into by the dealer I was informed that its not covered under any manufacturers warranty and would cost me approx. $10,000.00 for them to repair it or I could trade it in. This is a very expensive luxury car and at this low milage shouldn't have these types of issue. I've seen on various car sites that both the oil comsumption and piston issue is a known issue with this model Audi and that issue occurs aournd 60,000 miles but was rectified for the models that came after 2015. I wish I had know this before making this purchase. Now the driver seat adjusting panel is broken, this came out of no where about four weeks ago with no warning. I haven't received any recall notifications since my Audi Care coverage expired, not sure why this would stop because I didn't continue this service.

NHTSA complaint #11628463 — an unverified report by a vehicle owner.

SERVICE BRAKES

I've reported multiple times to my dealer about the oil comsumption back in 2022 and work was performed on the vehicle in the prior year to fix leak and brake noise issue since approx 2021 on my 2015 Q5 that currently only has 65,000 miles. No warning indicator presents regarding the brakes. However oil indicator and engine light icons display. I'm constantly checking the oil indicator level to see how much is still in the and then add add once it shows thats its extremly low. I have to do this everytime I am about to use the car. This can be dangerous at times since there's no indication that its very low and its not seen unless you go into the "car" section that shows the level, it has no alert display for the level. All required diagnostic and maintenance services have been performed with the dealer. When inspecting the brake issue they always come back with no findings say that no issue could be found, howeve when I'm driving it, it sqeeks and makes a grinding sound all the time. This has been going on for quite a few years. As for the oil consumption issue, this isssue has been in recent years and both times this has been looked into by the dealer I was informed that its not covered under any manufacturers warranty and would cost me approx. $10,000.00 for them to repair it or I could trade it in. This is a very expensive luxury car and at this low milage shouldn't have these types of issue. I've seen on various car sites that both the oil comsumption and piston issue is a known issue with this model Audi and that issue occurs aournd 60,000 miles but was rectified for the models that came after 2015. I wish I had know this before making this purchase. Now the driver seat adjusting panel is broken, this came out of no where about four weeks ago with no warning. I haven't received any recall notifications since my Audi Care coverage expired, not sure why this would stop because I didn't continue this service.

NHTSA complaint #11628463 — an unverified report by a vehicle owner.

FUEL/PROPULSION SYSTEM

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

NHTSA complaint #11628449 — an unverified report by a vehicle owner.

ENGINE

After paying to run an inspection test recommended by Audi USA, it was confirmed that the issue of the excess oil consumption was with the piston, and they also recommended changing the engine. It puts me at risk every time I drive the car because I am not sure how much oil my car has at this point. I have been reporting to the dealer my observation of excessive oil consumption. They kept telling me that it was because my car was old. I have an Audi Q5 2015 with 85,600 miles. I have done all my manufacturing maintenance at the dealer, so they have records that I do take care of my car. I paid to run a diagnostic test suggested by Audi USA. I was told that I have to pay about $30,000 to fix the engine ($13,000 + for the piston and $17,000 + for the engine). The car started warning me that it needed oil soon. I reported it to Audi USA and told them that this issue was one of the recalls done in 2017. I was told that I did not qualify for any coverage because it was only for cars that had an issue in 2017. Now, at 85,600 miles, I am using almost two-quarters of an ounce for every 1,000 miles. I called Audi USA over a month ago, and they asked me to take my car to the dealer so that they could run the test. I had to pay for the test only to confirm that I needed to change the engine and piston. This is a costly luxury car, and nobody should be going through this issue. Audi is responsible for this manufacturing defect.

NHTSA complaint #11624091 — an unverified report by a vehicle owner.

POWER TRAIN

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.

NHTSA complaint #11620729 — an unverified report by a vehicle owner.

WHEELS

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.

NHTSA complaint #11620729 — an unverified report by a vehicle owner.