AUDI Complaints

The sunroof leaked during rain causing both known and unknown damage to electrical components in the overhead panel. Lights came on and went off intermittently.

While driving on the freeway at approximately 65–70 mph, the engine suddenly stopped responding to all accelerator pedal inputs. The vehicle experienced an immediate, dangerous loss of motive power in active traffic. The dashboard displayed an amber check engine light alongside the central master warning light (an amber triangle with an exclamation point inside). I was forced to coast across active lanes of highway traffic to reach the right-hand shoulder. A State Trooper was on the shoulder and approached me, but there was no formal report. After turning the vehicle completely off and waiting, the system temporarily reset, and throttle response returned. The following day, the exact same sudden loss of accelerator response occurred while driving in local traffic, again creating a severe risk of a rear-end collision. The vehicle has been taken to an authorized Audi dealership for a diagnostic evaluation. No diagnostic trouble codes (DTCs) have been provided by the dealer yet. There was no crash or injury, but the sudden, repetitive loss of propulsion on a high-speed roadway constitutes an extreme safety hazard. I am the original owner and have maintained all scheduled maintenance intervals.

While driving my 2026 Audi Q5, the instrument cluster display went completely black twice while the vehicle was in motion, eliminating my speedometer and all warning indicators. Separately, during another drive, the vehicle displayed "Suspension: malfunction! Safely stop vehicle" on two occasions within minutes of each other, at approximately 15 mph and 17 mph, each accompanied by illuminated ABS and BRAKE warning lights. Immediately after, the odometer failed, displaying dashes instead of mileage, and the display spontaneously switched from miles to kilometers. This was followed by approximately 15 additional system warnings disabling adaptive cruise assist, lane departure warning, exit warning, active front assist/distance warning, parking systems, fatigue warning, traffic sign recognition, distraction warning, rear cross-traffic assist, and emergency assist. The vehicle was taken to an authorized Audi dealer for diagnosis. The technician was unable to duplicate or identify the cause of the failure. I have photographic documentation, with timestamps, of every warning message described above. This appears to be an intermittent failure of a central vehicle module or communication bus affecting braking, stability, and driver-assist systems simultaneously, creating a safety risk while driving.

My Q5 has a defective subframe. The system is defective because plastic coverings on the subframes of Audi Q5s and SQ5s trap moisture and other elements, causing the subframe to rust, rot, and corrode undetected, which creates a dangerous safety hazard, the existence and extent of which is concealed by the plastic coverings. This results in a myriad of negative consequences for the Class Vehicles and their safe and reliable operation. The defect, which can only be discovered after removing the plastic covering on the vehicles’ steel subframe, leaves an affected Audi vulnerable to “structural instability.”

2024 Audi Q8 e-tron, VIN [XXX], [XXX]. Vehicle has had four documented electrical/drive system malfunctions in 12 months, all tied to high heat. We regularly drive our [XXX] child in this vehicle and no longer feel safe doing so. XXX: Electrical system malfunction warning while driving. Taken to Audi dealer. XXX: Same malfunction recurred, taken to Audi dealer again. Both times dealer advised waiting for cooler temps rather than repairing the vehicle. Mid-XXX: Charging began degrading in extreme heat. Day before report: Charging stopped completely, leaving vehicle unusable. Day of report: Drive system malfunction error, vehicle would not shift into drive, had to be towed. A dealer service advisor confirmed Q8 e-tron batteries commonly degrade and fail in Arizona heat and described it as a known regional issue. Safety concern: this vehicle repeatedly loses drive function and charging capability without warning in extreme heat, creating a real risk of being stranded on the road, including with a young child in the car. This is not a comfort or convenience issue, it is a recurring safety failure that Audi has been made aware of multiple times without resolution. Documentation available: text correspondence with Audi, dealer service records, tow record. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

On XXX, I was driving northbound on US-101 from [XXX] to [XXX] to pick up a family member for an appointment. The vehicle had been operating normally at freeway speed. As traffic slowed for a construction zone near Summerland, I intentionally reduced speed to approximately 20 mph. At that point, I heard a sudden abnormal rotational mechanical noise from the engine compartment, best described as a flapping or rubbing sound. The noise had not been present earlier during the drive. Within moments, the engine lost power and shut down. The vehicle lost propulsion while in traffic, and power steering assist was lost after the engine stopped. I was able to safely maneuver the vehicle off the roadway. The engine would not restart. Before this incident, I did not observe any meaningful warning of an impending catastrophic engine failure. I did not observe an engine overheating warning, an oil-pressure warning, or any other dashboard warning indicating an imminent engine seizure. Before purchasing the vehicle, and during my ownership, I used Ross-Tech VCDS (Audi/VW-specific diagnostic software) as part of proactive maintenance and monitoring. Nothing identified an impending catastrophic engine failure. The vehicle was transported to an independent European repair facility for inspection. The shop determined that the engine is mechanically seized and advised that the precise initiating cause cannot be determined without engine disassembly. An Audi dealership likewise indicated that additional manufacturer-level diagnostic procedures would be required. A case was created, and Audi declined assistance. I am submitting this complaint because the engine failed suddenly during normal operation without a meaningful advance warning, resulting in an immediate loss of propulsion in traffic. I believe this type of unexpected catastrophic engine failure presents a potential safety concern if it occurs while the vehicle is being operated on a public roadway. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5

My 2017 Audi Q7 with the 3.0T engine has experienced repeated engine/ignition system failures. The vehicle displays a "System Malfunction" warning light accompanied by shaking and stalling. This same malfunction has occurred at least 3 separate times over the past few years. Each time, a repair shop diagnosed and replaced faulty ignition coils, and the vehicle ran normally for a period of time before the identical malfunction returned. The vehicle is currently inoperable due to the most recent occurrence. This creates a safety risk because the stalling and shaking can occur while driving, with no clear warning beyond the malfunction light appearing at the same time as the symptoms begin. A stall or loss of power while in motion, especially in traffic or on a highway, could lead to a collision. The problem has been confirmed and repaired multiple times by an independent European auto repair specialist, who stated this is a known, recurring issue with this engine/model. The vehicle has not yet been inspected by the manufacturer directly. Separately, the vehicle has also developed excessive oil consumption, requiring approximately 2 gallons of oil added roughly every 6 weeks, with the frequency increasing over the last 2 months. I am uncertain whether the oil consumption and the recurring coil/ignition failures share a common root cause, but both issues are ongoing and unresolved. The vehicle and its components are available for inspection upon request.

My 2022 Audi Q7 experienced an internal water pump seal failure that allowed engine coolant to migrate into the vehicle’s vacuum system, contaminating the vacuum reservoir, valve, and connected lines. This is a known failure pattern affecting Audi/Volkswagen vehicles equipped with the 2.9T/3.0T EA839 engine family, where the water pump’s internal design allows coolant to be drawn into the vacuum circuit undetected, since the leak is internal and not visible externally. This can affect brake booster vacuum assist and turbo/drivetrain systems depending on severity. The failure occurred outside of any accident or misuse, is a documented design issue in ongoing class action litigation against Audi/Volkswagen, and required extensive repair (water pump, vacuum reservoir, valve, and related lines) once diagnosed. I am filing this complaint to document the pattern of this defect.

vehicle was put into gear and lost propulsion . Then all adas warning lights illuminated. This is the second time this has happened

4/30/26 I came home, parked in my driveway, got out of the car and opened the left back door to get my handicapped son out of the car. He wanted his talker from his backpack(he is nonverbal), so I sat next to him on the back seat and gave him the talker. Then I got out of the car and helped him to get out, closed the left rear door and turned towards my house holding his hand. At that point my mother who got out of the house because she saw us coming started yelling that the car is moving. I jumped, opened the driver door put my right leg inside trying to stop it but by then the car had already hit my fence right where we have a gate. The gate unlatched and opened and the car got then stuck in the opening pinning my left leg which was still On the ground against the door and the car as the car itself was pinned inside the fence opening. Eventually the gate completely gave in and the car continued to slowly move forward into my backyard, I got my right leg out while I saw the car rolling and taking down a shed and stopping in my tree. My leg was hurting very badly so I called 911. I still have some minor discomfort but had a large hematoma and significant pain for 2 weeks. Then the car had a failure to start several times on two different days on one day needing 15 attempts to start. I took the car to the dealer after the first incident and they said no codes and car is fine. I took it again after the car didn’t start and they mocked me. There was 15000 in body damage. I am a doctor and discussed with 5 different patients that are mechanics and they all said this car has clearly a defect and I should Not be driving it.