Audi
Q8

1. Failed/Malfunctioned Component: March 2025 - Air Conditioning (A/C) control valve, May 2025 - A/C line and seals. 2. Safety Risk: I heard an explosion underneath the vehicle shortly after parking the vehicle in a shopping center. Upon quick inspection, I did not initially observe any obvious broken parts, components, nor any warning lamps, messages or symptoms. The following day while charging the vehicle in my garage, I noticed a fluid leak emitting from under the vehicle. The fluid was identified as R1234YF refrigerant, which is flammable. The risk of that fluid igniting is even greater while the vehicle is charging. 3. The problem was reproduced by the dealer under both incidents (A/C control valve failure & A/C lines and seals explosion) and confirmed as a manufacturer defect. 4. The vehicle was inspected, serviced, and repaired at an authorized dealership on two occasions. 5. Warning lamps, messages, or other symptoms? Symptom in first instance was failure to blow cold air. Symptoms in second incident - fluid leak was detected, shortly after turning on the vehicle A/C failed to blow old air.

Front passenger door doesn’t always open when using the inside door handle. When you pull the door handle the door partially unlatches not allowing the door to open. You must then release the door handle and then repull the handle for the door totally unlatch and open. I was told by the dealership that these electric door latch’s are poorly designed. Cars been in the dealership 6 times for this in the past 2 months and it’s still not fixed.

I have experienced a persistent brake vibration issue since I first acquired my 2024 Audi Q8 e-tron in December 2023. The vehicle has required two full brake rotor and pad replacements within 12,000 miles, which is highly abnormal and suggests a fundamental defect in the braking system. Audi North Miami acknowledged the issue and replaced the rotors and pads under warranty in October 2024. However, just four months later (February 2025), the exact same issue reoccurred, and now Audi is refusing to cover the repairs, claiming it is normal wear and tear. Brakes are a critical safety component, and the fact that a luxury SUV requires two full brake replacements in such a short period raises serious concerns about engineering defects or improper installation. This defect increases stopping distances and affects braking performance, putting the driver, passengers, and others at risk. I urge NHTSA to investigate whether the Audi Q8 e-tron braking system is defective and if other consumers have reported similar failures. This is a serious safety issue that should not be ignored."

I was approaching an intersection with my left hand turn signal on and there were no cars oncoming and none behind me. As I went to turn the car slammed to a stop and I couldn't turn. I thought someone slammed into the back of me. The cars that were on the sides of the car at the traffic lights were alarmed as well. I had to back up and wait at the light. It was so dangerous, if the other cars weren't paying attention someone would have t-boned me and who knows what would have happened. My back and neck especially hurt for a few days. I immediately called the dealer and they said they never heard of that happening. I went through the car system and was able to turn off the pre sense, assuming that is what it is. It then happened AGAIN to my husband driving the car in the middle of an intersection making a left hand turn a week later. Someone almost hit him. This is a terribly unsafe program in the car. It is going to cause a bad accident. I don't know if there is a malfunction in my car or what but I don't feel safe driving this new car and I just signed a lease.

Complaint Regarding Brake Safety Issue – 2024 Audi e-tron Q8 Launch Edition Under Warranty While driving my 2024 Audi e-tron Q8 Launch Edition, I encountered an accident ahead and had to brake hard. As I applied the brakes, the entire car began to shake violently, nearly causing me to lose control. Prior to this incident, I had already experienced pulsating braking at lower speeds, which made the vehicle feel unsafe. After the incident, I noticed that the car no longer brakes evenly, even at low speeds. I brought the vehicle to Rusnak Audi Service Department, where Service Advisor Jorge Canul initially stated that the issue was "normal" and attributed it to the front motor. When I expressed concerns about safety and requested further investigation, I was later informed that the issue was related to the rotors. Despite the fact that my vehicle is under the Audi factory warranty and Audi-paid maintenance program, I was told that Audi does not cover rotor replacements, even though the rotors show minimal wear and the original brake pads still have 95% remaining life. Additionally, my own research online revealed that numerous other owners of the 2024 Audi e-tron Q8 Launch Edition have reported similar braking issues, raising further concerns about a potential widespread defect. I am submitting this complaint because I believe the braking issue poses a serious safety risk and should be addressed under warranty, as it affects the vehicle's ability to operate safely under emergency braking conditions. Thank you for your attention to this critical matter.

On 3 separate occasions the vehicle has abruptly stopped while making a left turn endangering our lives. The pre-sense automatic braking malfunctions and stops the vehicle as we begin a left turn. The turn signal is engaged and the car incorrectly determines it needs to perform an emergency braking action. The only oncoming traffic is 200 yards or more away. In addition the lane keeping assistance on the vehicle in many cases also malfunctions abruptly steering the car into a left hand turn lane. We reported the issues to Audi service and they took no action other than informing us of some update coming in 2025.

Our Audiu Q8 has had a host of safety issues since purchased in December 2023 and we have been denied or delayed on a buyback twice. The vehicle has been unable to be moved 3 times due to battery (12V and relay) issues that left my wife and [XXX] stranded at home. On one occasion the vehicle could not be moved by the tow service whatsoever. The charging system cable (known to cause fire hazard by Audi with open safety bulletins) created a fire in our 240 outlet box and also melted the plug and connected cable. The vehicle also continues to read road signs on exit ramps and hard brake check almost causing accidents while driving on the highway with cruise control. The feature for traffic sign recognition is tuned off but the vehicle continues to do this hard and sudden brake checking. Audi continues to drag their feet on repairs and still has not reimbursed us for electrical expenses from the fire damage over 6 weeks later. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Driving at 70 mph car lost power to wheels and coasted to stop. No response from accelerator. Battery was charged about 60%