Audi S5 Complaints

158 consumer complaints on file.

#11669373June 26, 2025
ELECTRICAL SYSTEM
The mmi system reboots randomly throughout nearly every drive. This has happened when backing up causing a loss of access to backup cameras and sensors making me stop in the middle of the road.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11669481June 26, 2025
ELECTRICAL SYSTEM, BACK OVER PREVENTION: REARVIEW SYSTEM BRAKING, BACK OVER PREVENTION: WARNINGS
The MMI restarts constantly every day sometimes multiple times within minutes of each other. There is no correlation with other vehicle feature or functions that cause these restarts to happen and they are not in any specific pattern . When the MMI system reboots, the rearview camera and parking sensor display go dark, making parking and reversing unsafe, which directly impacts the functionality of the Parking Collision Warning and Rear Cross Traffic Warning systems.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11668397June 22, 2025
UNKNOWN OR OTHER
The MMI entertainment system completely reboots several times on a 10-15 minute drives this causes me to lose all visibility into my clusters, maps, GPS, and much more. This problem has been replicated by my local dealership with no solution to the issues. There are many others online with the same exact problem, and have yet to be given a solution. There is no warning to this issue happening as it's very random.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11668318June 21, 2025
UNKNOWN OR OTHER
MMI keeps rebooting while driving, even during reverse. Happens randomly every 20 minutes.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11667855June 18, 2025
ELECTRICAL SYSTEM
The MMI system will turn off, and reset, while driving. this occurs constantly, starting about two months ago. This causes the screen to go blank, and today I almost ran over a pedestrian as the system stopped while backing up. Luckily, I stopped, but was in cross traffic, and was not an ideal situation. This occurs, and I've tried using as a guest, instead of the user, and the same result occurs with the screen going blank while driving and the MMI system reboots.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11665115June 5, 2025
ELECTRICAL SYSTEM, BACK OVER PREVENTION: REARVIEW SYSTEM BRAKING, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
Regularly my MMI will restart, screen goes blank, comes back and says I'm not the registered user. Then bluetooth won't work and I get park aid errors and no rear cross traffic or anything. Happens at least 2 times each way to and from work ( 45min ). I usually have to hard reset it twice to get things normal and an ignition cycle to get park aid back.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11662743May 23, 2025
ELECTRICAL SYSTEM
My 2020 S5 started randomly rebooting the MMI computer that controls all vehicle safety control features. The dealer claimed it was a software glitch caused by an update. They provided a software patch as a solution, but it continues to fail. The dealer says it's on Audi and there's nothing they can do, as the update/fix is corrupt. Audi is not being responsive, and this is an issue impacting many Audi vehicles.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11661076May 14, 2025
UNKNOWN OR OTHER, LANE DEPARTURE: BLIND SPOT DETECTION, BACK OVER PREVENTION: WARNINGS
Audi completed an over the air update and now the mmi screen reboots randomly, making it very dangerous when reversing using the backup camera and relying on parking sensors. Following navigation and it rebooting and having to utilize my cell phone making it difficult to also pay attention to the road.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11658506May 2, 2025
FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
I was turning west (left-hand turn) from a turn lane in the median, across three southbound lanes. I initiated the turn from a stop, after waiting through a traffic light. No nearby oncoming traffic. One car behind me in the turn lane. Halfway through the turn, the car suddenly and aggressively applied the breaks. Nearly caused the car behind me to collide with my rear. No evident reason for the car to stop. This is the second time something like this has happened with the "pre-sense" breaking system.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11655629April 19, 2025
ELECTRICAL SYSTEM, ENGINE
The car stalled while driving on [XXX] while approaching Express EZpass toll on [XXX]. The car stayed in the middle of the fast lane until the tow truck driver came and started the car. I cannot recall the yellow message on the dashboard that appeared as soon as the engine stopped. A yellow triangle with exclamation point and a car with exclamation point appeared on the dashboard. We called 911 and then AAA. AAA on the phone instructed us to turn on and off the engine several times. The engine did not start until the tow truck driver came, opened the door and replaced me in the driver’s seat. He stepped on the brakes and pushed the start button as I did several times before but this time the car started as if nothing happened. We drove the car home. The Audi service checked the car on their first available appointment date, 4/14/25. Their report stated “scanned vehicle and found faults starter performance performed test plan and starter is working in good condition, inspected battery terminal and found then not tight enough, performed cleaning of both battery terminal and reinstalling them and after service was performed now vehicle is working as it designed to” The car had its 40K maintenance service on 9/4/2024. Mileage then was 32,869. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11647150March 8, 2025
ENGINE
While driving, my Audi overheated randomly, started smoking, had to be towed. Had 72,800 miles, was serviced by Audi at 70k miles and all prior recommended services. Towed to Audi dealership, quoted 29k in engine repairs, Audi could never tell me why engine overheated. Would not cover any expense because “i didn’t buy it there”. Insurance denied two claims because Audi reported it as engine failure although they couldn’t prove what happened to cause the heating, said it was one of the worst engine overheating they had seen. Prior to overheating, service driver system popped up for the first time. Temperature gauges were normal. Will not start or run since. No accountability taken by Audi at all, even through corporate. I believe my safety was at risk because the engine would have caught on fire had I not of noticed or pulled over. A Good Samaritan even pulled behind me to check on me because they saw it smoking in passing. I have a video of Audi inspection. Date is estimate of event, I would have to research. Vehicle was purchased by prior owner as cpo from Audi at 30k miles and serviced since at same Audi dealer every recommended service and prior if issue arose, I have all service records.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11646068March 3, 2025
POWER TRAIN
I had a very pricey service performed on my vehicle and during that service they said there was a service bulletin or recall that required a software upgrade for the transmission (Audi of El Paso, TX). Once that occurred, my transmission would shift very hard especially going from 1st to 2nd gear or downshifting from 2nd to 1st gear. My service advisor told me that my vehicle had to learn again and that it would smooth out in time. It never has. My vehicle with only 79,000 miles on it should certainly not be having any transmission issues, especially since they were non-existent until the software upgrade was applied. I have researched the issue and have found that it is a common and widely known issue in Audis with similar electronic transmissions. I was able to find well over a hundred Audi owners who documented the same issues. Due to this update my vehicle showed simultaneous warning for a TPMS failure and gearbox failure.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11638456January 25, 2025
ENGINE
Water pump failure due to coolant migration.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11621297October 22, 2024
FUEL/PROPULSION SYSTEM
Our gas tank fuel level sensor is faulty so we can no longer tell how much gas is in our car. The check engine and fuel light are permanently on. This fuel sensor malfunction caused me to run out of gas in the middle of the road. The only way to fix it is to replace the entire gas tank at great expense. We were quoted $3500-$4000. We only have 44K miles on the vehicle.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11621015October 21, 2024
FUEL/PROPULSION SYSTEM, AIR BAGS, PARKING BRAKE
•Parking Brake Issue: The parking brake failed to disengage after stopping, leading to an accident. •Intoxalock Device Malfunction: The Intoxalock device malfunctioned with incessant beeping and intermittent error messages, causing distractions. •Previous Complaints and Lack of Resolution: Previous complaints about the parking brake and Intoxalock device were dismissed without proper investigation or resolution. •Parking Brake Failure: The parking brake failed to hold the car, leading to uncontrollable movement and collision with an obstacle. •Intoxalock Device Malfunction: The Intoxalock device malfunctioned, causing distractions and contributing to the accident. •Financial Burden and Lack of Refund: Intoxalock placed the account in collections despite timely payments and failed to refund lockout fees. •Safety Concerns: Parking brake malfunction and faulty Intoxalock device. •Installation Issues: Unprofessional installation and lack of functionality. •Customer Impact: Dangerous situations and potential vehicle damage. Intoxalock’s faulty installation and negligent response to previous complaints led to a parking brake failure and subsequent accident. The incident resulted in significant damage to the vehicle and highlighted the company’s lack of accountability for customer safety. Legal action is being considered due to the ongoing safety risks and unresolved issues.
Crash:
No
Fire:
No
Injuries:
1
Deaths:
0
#11603536July 20, 2024
STEERING
Steering Defective - Do Not Drive Vehicle warning on cluster. Almost impossible to turn steering wheel. Thank goodness did not happen at highway speed. Only 50k miles. YMM not one in the extended warranty that was offered by Audi with this issue. Needed $4k whole new steering rack assembly which was on its 8th revision. Other mult posts with same issue. Audi should expand their help with this issue. Dealership that fixed it was top notch.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11600570July 9, 2024
ENGINE
After driving for 7 to 8 minutes less that 45 mph, a yellow warning lamp and an audible warning indicating unsafe coolant temperature displayed on the dash. An overheating engine is unsafe for me and drivers near me. I immediately pulled over and turned off the A/C. I then turned on the heater, and after 15 minutes slowly drove 5 minutes to a repair shop (Import Autohaus, Hull Street). The repair shop diagnosed a defective water pump. The pump has not been inspected by anyone other than the mechanics at the repair shop.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11579095March 23, 2024
POWER TRAIN, ENGINE
I received a coolant overheating message, pulled to side of road. Let vehicle cool off although it just showed coolant warning and actual engine temperature showed normal along with oil temperature. Started car back up and it was ok, drove about a mile, engine started steaming, white smoke out of exhaust, system failure had to pull off and be towed. Engine is destroyed at 72,833 miles.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11558380December 4, 2023
ENGINE
I was returning home from visiting family. My drive was approx 140 miles home. The car was running/driving normally when I stopped at a gas station to get a snack. When I came back to my car and attempted to start it, it would not start and had camshaft and crankshaft sensor DTC's. I had to tow the car to my repair shop who determined that the issue was the rocker arms. Despite performing regular maintenance above and beyond what the manufacturer recommends, two rocker arms fell apart inside the engine (needle bearings came out) and sent metal through the engine, causing it to need to be replaced. It was later determined that this was a known issue by Audi, and that they redesigned the rocker arms at a later date. The did not issue a recall or any extended warranty for the effected models. This cost me $16,349 out of pocket to repair. I contacted Audi several times and they refused to rectify the issue. I have came across several others who have experienced the same issue. I have supporting documentation as well as part numbers and dates that I can provide upon request. This type of issue is a saftey concern because this can leave a driver stranded. When this issue happend I was over 75 miles away from home. Luckily I was able to find a tow truck and had the funds to cover the expense of having the car towed back to my home town. However, this issue could leave someone stranded in the middle of nowhere if they werent as lucky as I was.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11545179September 18, 2023
AIR BAGS, FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL, LANE DEPARTURE: ASSIST
The system warning keeps coming on, I’ve tried to schedule appointments with Audi since 2022 and they have zero appointments available
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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