BMW iX1 Stalls and Jerks: EV System Warning Signs

I had almost identical issues with my 2019 BMW iX3 last season. The symptoms you're describing match my experience perfectly, the irregular pump operation and jerking were quite concerning. Turned out the connection hose from the pump to the valve was defective, causing air leaks and incorrect pressure readings. The rubber had deteriorated and created tiny cracks. This affected the entire electric drive system's performance and triggered the check engine light. It was actually a serious issue that needed immediate attention since it could potentially damage other components if left unchecked. The repair involved replacing the entire hose assembly and recalibrating the system. My advice would be to get it checked right away. These symptoms shouldn't be ignored, especially in an electric vehicle where proper cooling system operation is crucial. Look for a certified BMW EV technician, they'll have the right diagnostic tools and experience with these specific models.

Thanks so much for sharing your experience! That's really helpful information about the hose assembly. Got mine fixed last week and it does sound like the same problem. Curious though, do you remember roughly how much you ended up paying for the repair? Also, has everything been running smoothly since they fixed it, or have you noticed any other quirks?

Hey there! Thanks for asking about the follow-up. I'm happy to tell you that since getting that hose connection fixed on my iX3, it's been running like a dream, absolutely no issues whatsoever. The jerking and stalling completely disappeared, and the check engine light hasn't shown its face again. I paid around 175 € for the repair, which included fixing that pesky connection between the pump and valve. Honestly, considering how smoothly everything's running now, I'd say it was money well spent. Those tiny cracks in the rubber were causing way more trouble than you'd expect! The technician did a fantastic job, and the car feels like new again. It's been about 6 months now, and I haven't noticed any quirks or weird behavior. The air pump is working perfectly normal now, no more irregular running or strange noises. Just the quiet, smooth performance you'd expect from a BMW. Just goes to show how something relatively simple like a faulty hose connection can cause such annoying problems in these high-tech EVs. But once it's properly fixed, you're good to go!

Thanks for the detailed response! Just wanted to update everyone on what happened with my BMW. Finally took it to a certified BMW service center last week. The mechanic found exactly what you described, those sneaky little cracks in the hose were causing all the drama. Got the whole thing replaced and had them do a system recalibration. Cost me about 200 for the entire job, which honestly wasn't as bad as I'd feared. The best part? My car's running perfectly now! No more jerking or stalling, and that annoying check engine light is finally off. The air pump's working normally too, no more weird sounds or irregular operation. Got to say, I'm relieved I didn't wait any longer to get it fixed. The mechanic mentioned it could have caused bigger problems if left unchecked. Really appreciate everyone's input, helped me avoid what could have been a much more expensive repair down the line!