BMW iX2 CCC System Dead, Control Unit Communication Fix

Hey there! I have some experience with car electronics from owning a 2022 BMW iX3 (and previously had an i4). That sounds really similar to what I dealt with last winter. My entire infotainment system went dark, no response from anything. The dealer initially suspected a CAN-BUS issue, but it turned out to be a faulty control module. Got it fixed for 235 Euro, they basically had to replace and reprogram the module. What's your mileage, and did this start happening suddenly or gradually? Also, have you noticed any other electrical quirks before this happened? This info would help narrow down if you're facing the same issue I had. I'd definitely recommend getting it checked at a certified workshop since these modern EVs are pretty complex with their electronics. Better safe than sorry!

Thanks for sharing your experience! I've got 41527 KM on mine, and this happened right after my latest service actually. In my case, it started out of nowhere while driving, complete system blackout. Seems like our issues are pretty similar. Did your dealer mention how long it took them to diagnose and fix the problem? I'm hoping to get this sorted quickly since it's my daily driver. I'll definitely take it to the certified workshop based on your advice.

Hey again! Yes, our issues do sound very similar, especially since yours happened suddenly too. In my case, the diagnosis took about 2-3 hours because they had to run through several system checks. The actual repair was pretty quick once they identified the faulty module, maybe another 2 hours for the replacement and reprogramming. The funny thing is, mine also acted up shortly after a service appointment, just like yours. Makes me wonder if there's some connection there. But honestly, these modern EVs can be quite sensitive sometimes. One thing I learned from my experience, make sure they check the software version after replacing the module. My first repair actually needed a follow-up visit because the system wasn't fully synchronized. Not a huge deal, but something to keep in mind. Quick tip: if you haven't already, try disconnecting your 12V battery for about 15 minutes. It didn't fix my issue permanently, but it temporarily got the system working again until I could get it to the workshop. Just remember to have your radio code handy if you try this! Let me know how it goes, I'm curious if it turns out to be the same module issue I had.

Thanks so much for all these details, especially about the repair timeline and that tip about the 12V battery! I actually tried the battery disconnect trick you mentioned, but no luck in my case. Guess I'll have to be patient with the full repair process. Really interesting that you had this happen after a service too, definitely seems like more than just a coincidence. I've already booked it in at the workshop for tomorrow morning, and I made sure to mention your experience with the module replacement and reprogramming. They seemed pretty familiar with the issue when I described it, so fingers crossed it'll be the same straightforward fix you had. I'll definitely make sure they check the software synchronization too, thanks for that heads up! Would've been really annoying to have to go back for a second visit. I'll update you once it's fixed and let you know if it was the same module issue. Really appreciate all your help with this!