BMW X2 Stalling: Secondary Air Pump or Valve Problem?

Hi there! I have some experience working on BMWs, and I actually faced something very similar with my 2016 BMW X1 last year. Those symptoms sound really familiar, my car was doing the same thing, and it was super frustrating. Took it to my regular workshop, and they found a damaged hose connection between the secondary air pump and valve. Fixed it for about 175 Euro and the problem hasn't come back since. The whole thing took about a day to sort out. Could you tell me if you're getting any specific error codes? Also, does the jerking happen more when the engine is cold or warm? This info would help confirm if we're dealing with the same issue. The X1 and X2 share quite a few components, so I might be able to give you more specific advice.

Thanks for sharing your experience! I've got 51377 KM on my X2, and it just started acting up last month after my regular service. The jerking mostly happens when the engine is warm, especially during acceleration. Getting error code P0411. Really hoping it's just the hose connection like in your case and not something more serious. Did you notice any particular smell or noise before getting it fixed? The service center's fully booked until next week, so trying to gather as much info as possible before taking it in.

Hey again! Yeah, I totally remember dealing with this on my X1. When you mentioned the P0411 code and the jerking during warm acceleration, it's exactly what I experienced. Mine was at around 48000 KM when these issues started popping up. Actually, now that you ask about smells and sounds, yes! Before getting it fixed, I noticed a slight rubber-burning smell, especially after driving for a while. There was also this weird whirring noise that lasted longer than usual after turning off the engine. These were definite red flags. In my case, it turned out there was a small crack in the hose that got worse over time. The timing of your issues starting after a service is interesting, sometimes these problems can show up if something wasn't reconnected properly during maintenance. Don't stress too much while waiting for your service appointment. The jerking is annoying, but I drove mine carefully for about two weeks before getting it fixed and it was manageable. Just try to avoid heavy acceleration when the engine's warm since that's when the symptoms are worst. Quick tip though, make sure they check all the connections thoroughly, not just the obvious ones. My mechanic found that the original issue had caused some wear on a nearby connector too, so we replaced both to prevent future problems. Let me know how it goes when you get it checked out. I'm curious if it's the same issue as mine!

Thanks so much for all the detailed info! You've actually made me feel a lot better about this situation. I've noticed that same rubber smell you mentioned, which pretty much confirms we're dealing with the same issue. The whirring noise is there too, though I hadn't connected the dots until you mentioned it. I'll definitely tell the mechanic about the worn connector issue you experienced, really helpful tip there. I've been babying the car since the problems started, avoiding hard acceleration just like you suggested. Good to know it's probably not causing any major damage in the meantime. Appreciate you taking the time to share your experience. I'll update you once it's fixed, but I'm feeling much more confident now that it's likely just a hose connection problem rather than something more serious with the engine. Thanks again for all the help!