Warnings Problems of Audi A5

Audi A5 owners have reported 4 problems related to warnings (under the forward collision avoidance category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Audi A5 based on all problems reported for the A5.

1 Warnings problem of the 2020 Audi A5

Failure Date: 07/08/2025

Starting early 2025 with no changes or modifications or warning - the mmi system in my 2020 Audi A5 began spontanously rebooting. It appears to be rebooting regardless use or radio, carplay, or nothing - even after the recent factory reset. Reboots appear to occur at random - sometimes once in 40 mins, or every 3-4 mins. After some research, it appears other similar 2020 cars have recently started experiencing the similar symptoms something this year in 2025. Sudden loss of navigation aid, parking and warning collision, etc have almost resulted in crashes. It was inspected at a dealer, who did not note any other open issues. I suspect there must be a change in how Audi forces the car to call back to their service that resulted in software reboots.

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2 Warnings problem of the 2025 Audi A5

Failure Date: 06/13/2025

13 Jun 25 2100 hrs - auto went thru multiple of errors and transmission would not go into gear, electric door locks released all emergency pull handles and car was not able to move. Called Audi emergency service. Tried to get out of vehicle and door could not be opened from inside the vehicle. I had friend come and get me out of vehicle by me pushing on the inside and her pulling the emergency pull. Dangerous! emergency service could not come to tow vehicle for three days because of being on an air force base and no tow companies that Audi contracted with had a realid or a clean criminal record. 16 June, Audi finally finds company to tow vehicle, at that point vehicle had completely died and could not be jump started. Car towed to Audi service. Car in service for three weeks and I was told it was just a bad battery. I took vehicle with doubts of repair and for the next four months car would pop multiple software errors specifically on driver assist, no sound, dash going completely blank while driving, etc. The next major electrical failure was on 17 Nov, once again car would not start nor could it be jump started by tow company. Car once again towed to Audi on the same day. Car in service until 23 Dec and Audi said it was related to TSB 2079690/4 and they have stated that the kd2 should resolve electrical issue with driver door module constantly running and killing car. One day later, already popping driver assist errors. This car is dangerous and Audi knows that this kd2 is a band-aid on a software system that is unreliable and still has no permanent fix. I fear being stranded on a highway and either being stuck in my vehicle and can't get out or not being able to get in car if I get out to try and open hood to check vehicle, I might not be able to get back in because of electric locks.

3 Warnings problem of the 2018 Audi A5

Failure Date: 11/15/2023

The Audi pre-sense system will not stop malfunctioning. The specific message "Audi pre sense: malfunction! please contact service it is not related to any specific event that I can tell but appears to happen mostly when there is another vehicle in front of me. I have spent over $400 in Audi dealership costs to solve the problem and they have been unable to solve it. The last time, they did a software update in September 2024 and after that, the malfunctions became more frequent. It now happens every time I drive the car. I have tried turning it off and resetting it, but it still does not reset or stop being a problem. There are numerous issues with this reported in Audi forums and on the internet with no one seeming to have solved their specific problem. There was a class action lawsuit on this, but I was dealing with a death in the family and was unable to file the claim in time. And the lawsuit did not provide a remedy to fix it. I need help on this. Audi doesn't seem to know how to fix it.

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4 Warnings problem of the 2019 Audi A5

Failure Date: 08/03/2021

On three different occasions, I have experienced automatic emergency braking of the car which, rather than keeping me safe, placed me in a very dangerous situation. Each time, I was in a controlled intersection on a green light and in the left turn lane, with oncoming traffic also having a green light. When it was amply safe to make the left turn, with oncoming traffic at a safe distance from the intersection, I began my left turn. Just as my car was turning in front of that oncoming traffic, and just as I needed to proceed safely and promptly through the intersection, the pre-sense system jammed on the brakes, stopping my car in the path of oncoming traffic. In the time it took to get over the shock of that happening and finish the turn, and if the oncoming traffic had not been paying attention, serious accidents could have resulted. Please note that all three of these incidents occurred with the pre-sense system set at its least sensitive position. I have since turned the system off completely. I have not contacted the dealer or the manufacturer.

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Other Common Forward Collision Avoidance related problems of Audi A5

Problem Category Number of Problems
Warnings problems
4
Automatic Emergency Braking problems
4
Adaptive Cruise Control problems
1
Sensing System Radar problems
1


A5 Service Bulletins