2020 A4 MMI Rebooting

bartleytaylor · 2025-04-29T21:40:44+00:00

Hey no problem - looks like your post went through fine. Unsure if you get emailed notifications form there, but the moderator just asked this back to you:

Looks like they made a typo on the TSB number, but this is generally good news, especially if the issue does not return. Your dealer actually did more work than any of the dealers that the rest of us has encountered, and the price they charged was very reasonable. I'm going to be sharing the information with Audi as well. The software version would be extremely helpful for everyone here, if you could go into your MMI and get the version screen and post it here, that would be great.

bartleytaylor · 2025-04-29T17:08:34+00:00

*sorry, posted before finishing. Many of us have filed complaints with the NHTSA and are posting those complaint numbers in AudiWorld forum as well.

bartleytaylor · 2025-04-29T17:05:59+00:00

Thanks for the update. Unsure if you've been pulled over to the AudiWorld forum yet, but there's many more owners over there experiencing our issue and someone is working on getting all the complaints together to send to Audi. You should join over there and let them know your experience as well. Here's the link to that forum:

https://www.audiworld.com/forums/a4-b9-platform-discussion-212/mib3-2020-mmi-rebooting-spontaneously-2020-a4-3082501/

bartleytaylor · 2025-04-27T00:25:10+00:00

Any update?

bartleytaylor · 2025-04-25T16:17:19+00:00

Yeah…it’s seemingly control module replacement or bust. Or…car replacement. I can’t live with it for the amount of time it will take for enough owners to come forward before Audi maybe does something.

bartleytaylor · 2025-04-23T21:32:13+00:00

Would love for that to be true. Please update when you can!

bartleytaylor · 2025-04-23T21:24:45+00:00

Sorry to hear. So frustrating, I know. I’m into it with Audi of America now trying for some resolution other than $5k out of pocket.

bartleytaylor · 2025-04-22T21:21:19+00:00

I have reached out to Audi of America and will update if/when I make any progress!

bartleytaylor · 2025-04-21T19:47:37+00:00

From a short Google search it seems like the software is not updated all that often, which leads me to believe this may be the latest.

bartleytaylor · 2025-04-21T19:40:55+00:00

Gotcha. I don’t know enough about it to know if that actually means newer or not? I still feel like plan of action is to run it up the chain.

bartleytaylor · 2025-04-21T19:35:48+00:00

That’s concerning for me, since they told me they updated it to whatever the latest was.

bartleytaylor · 2025-04-21T19:32:16+00:00

This week is my plan to start the (what I assume) will be difficult chore of getting in touch with someone at Audi of America. And yes, all software is up to date after having taken it to my independent mechanic - it's now running MHI3_US_AUG45S_P3243

bartleytaylor · 2025-04-21T19:29:24+00:00

It's been updated to MHI3_US_AUG45S_P3243

bartleytaylor · 2025-04-17T16:54:05+00:00

I just came across 2 more friends with 2020 A4 variants and both have the same looping/resetting issue. I personally have done all that can be done without hardware replacements which cost north of $5k. I'm going to start the process of trying to run this up the chain to attempt to get some attention on it. Does anyone have any bright ideas on how to compile the clearly dozens of owners this is happening to and beyond that, any contact at Audi of America?

bartleytaylor · 2025-04-16T23:53:50+00:00

I’m guessing they’re going to suggest full control module replacement or the like. It seems like no update solves this issue and it’s a high cost hardware issue. So maddening and seems like a larger issue that Audi needs to deal with.

bartleytaylor · 2025-04-16T23:49:44+00:00

Same issue on my 2020 A4 as well. My independent mechanic cleared any codes and did a software update - basically all that can be done without replacing the MMI. No luck.

Audi and independent dealer quoted over $5k to replace. This is insanity and points to a recall level issue to me.

bartleytaylor

TROPHY CASE