Najdurham

I think, like I did, you probably have a faulty battery. If the stop start stops working again get them to replace the battery

No. With this particular cut out the ignition stays on I have to switch off the ignition then then manually restart. If I ever do stall the car from a standstill dipping the clutch does restart the engine. I did wonder if it’s linked the the fuel saving feature when the car shuts down 2 cylinders. It’s as though all 4 shut down

Interesting thought but mine has just had a new battery fitted to fix the stop start which still seems to be working suggesting battery is fine. Also my A3 has cut out when just approaching traffic lights without any steering. Perhaps my driving style is not compatible with this particular engine. Wish I could figure out how to reproduce the fault. Seem to happen when I approach a junction at a slightly higher speed.

As requested by Newcastle Audi. I drove the car with the stop start turned off. Yesterday the engine cut out while slowing to turn left and with stop start turned off. Really must find a fix for this issue.

My battery has the exact same issue. They asked I left the car overnight so they could charge it but next day after a second test drive found the battery was back to 60%.l After another 2 days off the road and more tests Audi approved a replacement battery under warranty. Car is just one year old and 10000 miles. re the radio. I rejected my first Car because of radio issues and had it replaced with the current car.

My car cut out again yesterday during a right turn. Fortunately the road was quiet. Rang Newcastle Audi and they advised me to drive with the stop start turned off and see if that prevents the engine cut out issue . I asked if I was on the most up to date version of engine management software and was told I was. Someone is eventually going to be involved in an accident, then they may eventually take it seriously and get it fixed.

Have you just accepted nothing can be done? It’s really going to be a waste of time taking it back up to Newcastle Audi as it is impossible to reproduce the fault and Audi seem to be of no help. They seem to be in denial.

Quick update. As advised by the dealer. Switching the Drive select from Automatic to Dynamic has not worked around the engine cut-out issue. My A3 still occasionally cuts out went slowing to junctions and lights. The stop/start is still working after the battery was changed

My stop start hadn’t worked for several months too. I wasn’t too bothered about it until they asked me to turn it off to see if the engine cut off issues were linked to stop start. The car always started despite them telling me the battery was only 60% charged. Newcastle Audi had the car 5 days over 3 60 mile round trips to Newcastle before they fully diagnosed a faulty battery and got authorisation from Audi to replace the battery. Rather annoying they didn’t identify a battery issue when the car had its first service in September and they were supposed to be investigating the cut out issue. Makes me wonder if they had actually ran any diagnostic testing. I like the car but I’m seriously thinking to replace it in the spring. This one is my third A3 from new and the only one to give me problems. I actually rejected the car I took delivery of in September 2024 because of problems with the MMI and my current car is the replacement. Interestingly the first car also had the cut out issue.

Hello Cliff. Newcastle Audi replaced the battery under warranty and the stop start now works. I’m more concerned about the engine intermittently cutting out when slowing to junctions or roundabouts. Sometimes it’s dangerous when I have entered the roundabout only to find the engine has stopped. Embarrassing at lights when I’ve not noticed the engine has cut out and I have to manually turn off the ignition and restart the engine. I’m now running the car in Dynamic mode rather than Automatic to see if that works around the engine cut out issue.

I have suffered this exact same issue since I bought my A3 new in October 2024. I was told it was a stall and this issue was not known about by any other of Newcastle Audi customers. I was told to turn off the stop start and I advised the dealer that had not worked for a while. A replacement battery sorted the stop start. I was also informed that they had suddenly found a technical bulletin and I was advised not to use automatic in Drive Select. I have selected Dynamic for the last 2 weeks and so far I’m not yet sure if this has worked around the issue. Pleased to find others are aware of this issue too. It would be good to read this technical bulletin for myself. The way Audi has dealt with my concerns and the time it took to authorise a replacement battery. 3 trips to Newcastle and the car left overnight, has really made me question if I’d buy another Audi

Thanks Greg, Mine is Manual. At least the MMI is working well on this one

Thanks Greg, I asked the dealer and they are not aware of it either. Never happened to me on any other car I drive but perhaps its just me. Is your manual?

Sorry if this is also off topic. I am now finding my replacement A3 has the same issue as the one I rejected. The engine intermittently cuts out when approaching a standstill at junctions or slow traffic. Before I approach the dealer just wondered if anyone else had this on a 24/25 model year A3 It’s not the stop start as the car is still in gear and moving, clutch depressed. I have to restart by turning off the ignition then restarting

My replacement A3 with udated software still going OK Regarding Alexa, I was unable to use my phone hotspot for data, car said it was not compatible or something like that. However, I went to the cubic site to buy some data just to have a play. I was surprised to find there was a free 1 year data package. I bought that for free and Alexa worked

Hello Ted I tested mine yestersay and the VC does return to the date and time after being left at Nav and restarted. My replacement A3 has software version 4318 and only arrived at Tyne Dock just over a week ago. All radio settings are being retained

Gordon, Newcastle Audi kept wanting to involve Audi but I insisted my contract was with them and not Audi plus I wanted the car rejected withing the 30 days. The way they replaced the car meant I had to buy the replacement and they bought the faulty one as a trade in. Don’t know how they manipulate the figures but has cost me nothing. I am just waiting for the cash back now as I had paid off, the PCP in the 14 day cooling off period but had to take it back out in order to claim the discount again. Ted, I will check the VC to see if it retains settings At the moment I am unable to sign it to Alexa because No Network. Not sure what network it needs as the rejected car did not have this issue

After rejecting the original A3, I collected my replacement A3 from Newcastle Audi on Saturday. The faulty car had software version 4143, the replacement has 4318. So far MMI is working as expected. The engine cutout issue when slowing for lights and junctions has not occurred either. I will wait a few more days before I am sure all is OK

Just thought it worth a try as the Factory reset done by the dealer hadn’t worked. I paid off my PCP in the 14-day cooling off period so no £700 for me, however I am getting a replacement car and the refund of the car tax plus a 2-year service plan. If the new car has the issue, and I am sure it will, I'll try the factory reset myself. Another reason I wanted to replace the car, at least a couple of time each week, when slowing for lights, a junction or in slow traffic I have found the engine cuts out. To restart I have to turn off the ignition by pressing the stop button then starting again as normal. The car is a manual. At first, I put it down to not being familiar with the car but I have never had this sort of issue on my previous two A3s. Anyone any suggestions? It’s not the stop/start as the car is still in gear, the clutch is depressed and the car is still rolling.

I tried this; it didn't work for me. The previous two attempts by the dealer didn't work either. They have now agreed to replace the car, just waiting a date to collect it. Hopefully the Audi workaround will work on the replacement

Thanks Gordon & Mick. There appears to be no reason it should not work on mine too

Newcastle Audi have now advised me that the temporary fix applied to my car is now the permanent fix and there will be no December update. They have had 2 attempts at mine without success. Before I have a go myself and revert to factory settings, could someone let me know the version of the MMI software that seems to be working. Mine is currently 3A.22-233200.. Thanks

Hello Greg I'm on 4143 too. Is the fix you got from Audi Customer Service still working for you? If so I'll try giving them a call

Perhaps Newcastle Audi and not applying this temporary fix correctly, they had two attempts with mine, the first one had made things worse

Update. I collected my A3 from Newcastle Audi on Friday PM after leaving it with them overnight. I reset the MMI and my phone and set off home. The phone no longer had my call history which had worked OK before the reset at the dealers. All was fine for 3 or 4 restarts over the next few hours. Later that evening I went to put the car in the garage and there was the longer boot up and no favourites. Emailed Newcaste Audi and asked for a replacement car. Sales manager says he will call me today with my options. MMI is showning version 4143. The loan Q2 I has was 4142 and that seemed to be OK