BMW i4 Window Failure Strikes, Owners Seek Solutions

Hey there! I actually had a similar issue with my 2019 BMW iX3 last month. Windows completely died, got the same error message and everything. The problem wasn't the window regulator, turned out the battery was failing to provide consistent power to the electrical systems. Took it to the garage and they did a full diagnostic. What they found was interesting, the original battery had degraded faster than normal, which is somewhat common in electric vehicles due to the complex power management systems. They had to replace the battery and recalibrate the window controls. The fix wasn't particularly complicated, but it did require specialized diagnostic equipment for BMWs. The whole thing took about half a day at the shop. It's definitely something you want a certified technician to handle, especially with these newer electric models. Since you're still within the typical warranty period for a 2022 model, I'd suggest contacting a BMW dealer directly. They should be able to properly diagnose and fix this under warranty. Hope this helps.

Thanks for sharing your experience! That's really helpful to know about the battery being the culprit rather than the window regulator. I'm planning to take mine in next week. Do you remember roughly how much you ended up paying for the fix? Also, has everything been working properly since the battery replacement, or have you noticed any other electrical quirks?

Hey again! Happy to give you an update! The repair cost me 290 € for the battery replacement, which wasn't too bad considering it fixed everything. And yes, since getting it sorted, all the electrical systems including the windows have been working perfectly, no more "Window regulator initialization unsuccessful" messages or any other quirks. You know what's funny? I was initially worried it would be some complicated mechanical issue with the windows themselves, but the battery replacement really did solve it all. The technician explained that these modern EVs are super sensitive to battery performance, and even a slightly degraded battery can cause all sorts of weird electrical gremlins. It's been about three months now since the fix, and I haven't had a single problem. The windows go up and down smoothly, and all the other electrical systems are working like a charm. Honestly, the car feels as good as new. Just make sure you get it done by someone who really knows BMWs, these electric models can be tricky if you don't have the right diagnostic equipment. Money well spent in my opinion!

Thanks for all that detail! Really relieved to hear it wasn't as complicated or expensive as I feared. Just got back from the mechanic actually, and you were spot on about the battery being the issue. Had a much better experience this time with a different shop. The mechanic was super knowledgeable about EVs and found the problem right away. Mine ended up costing a bit more because they had to update some software too, but at least it's all sorted now. Funny thing is, while I was there, I noticed three other electric vehicles getting similar fixes. Guess it's more common than I thought! The windows are working perfectly now, and they even fixed a small glitch in the infotainment system I hadn't even mentioned. Really appreciate everyone's help with this. Sometimes it's just about finding the right mechanic who knows what they're doing with these high-tech cars. Case closed on this one!