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