BMW X2 ECU Problems Causing Multiple System Failures?

Hey there! I had a really similar issue with my 2019 BMW X1 (had it before switching to an X3). I have some experience working on cars, but this one needed professional help. Turned out it was just a defective main relay, it caused all those weird electrical gremlins you're describing. Got it sorted at my regular workshop for around 120 Euro. The symptoms were exactly what you're experiencing, sluggish start, power issues, unusual system failures. Could you share more details about when these problems started and if you notice any pattern? Like does it happen more when the engine's hot or cold? This info would help confirm if we're dealing with the same issue. Best of luck getting it fixed!

Thanks for sharing your experience! That's really helpful. Mine started acting up about two weeks ago, and it seems to happen more when the engine is cold, especially in the morning. I just had my service at 77069 KM and everything was fine then, so this came as a surprise. I'll definitely get the main relay checked out based on what you mentioned. Did your BMW give you any warning lights on the dash before the complete system shutdowns started happening? Just trying to figure out if I should drive it to the workshop or get it towed to avoid any risks.

Hey again! Yeah, I totally get your concern about the warning lights. In my case, I first got the "Check Engine" light, and then it progressed to unusual warning messages on the dash about system malfunctions. The weird thing was, they'd come and go, super annoying! Since you mentioned cold starts being worse, that's exactly how mine behaved too. I actually risked driving it to the workshop because the issues weren't constant, but honestly, looking back, I should've just gotten it towed. You never know when these electrical gremlins might cause something more serious. One thing I remembered, before the complete shutdowns started, my car would sometimes have this slight hesitation when pressing the start button, like it needed to "think" for a second before starting up. Did you notice anything like that? Just to be on the safe side, I'd recommend getting it towed. My mechanic later told me I was lucky nothing major happened during my drive to the workshop. Better safe than sorry with these electronic issues, especially in a newer BMW. The main relay is pretty crucial for all the electrical systems to work properly. Let me know what you find out, really curious if it turns out to be the same issue!

Thanks a lot for the detailed follow-up! And yes, I've noticed exactly that hesitation with the start button you mentioned, it's like the car needs a moment to gather itself before starting. After hearing about your experience, I'm definitely going to play it safe and get it towed. Not worth risking any further damage or getting stranded somewhere. I've already called my workshop and booked it in for tomorrow morning. They'll check the main relay first based on your experience. Really hope it turns out to be something as straightforward and relatively inexpensive as that! I'll miss my car for a day or two, but better to get it sorted properly. Thanks again for all your help, it's been super reassuring to hear from someone who's dealt with the same issue. I'll update the thread once I know what the actual problem was, might help others with similar symptoms in the future!