BMW X5 Stalling and Smoking: Fuel Injection Drama

Hey! I had very similar issues with my 2007 BMW X3 last year. The symptoms you're describing match exactly what I experienced, especially the jerking, power loss, and that annoying stalling at idle. In my case, it turned out to be faulty fuel injector connectors and damaged wiring harness in the injection system. The insulation had worn out, causing intermittent connection issues. The smoke during acceleration was a dead giveaway, it's typically a sign of improper fuel delivery. The repair involved replacing two injectors and rewiring the entire connection assembly. It wasn't a quick fix, took the garage about two days to complete the work. While it was a serious issue that needed immediate attention, the good news is that catching it early prevented damage to other engine components. The car's been running smoothly since then, no more jerking, stalling, or excessive fuel consumption. I'd strongly suggest getting it checked soon though, as these symptoms usually get worse if left unattended.

Thanks so much for sharing your experience, it's really reassuring to hear someone had the same problem and got it sorted. You're absolutely right about the fuel injector connectors, those symptoms line up perfectly with what I'm dealing with. Just curious, do you remember roughly how much you ended up paying for the whole repair? Also, has everything stayed running smoothly since, or have you noticed any other issues pop up? Really appreciate your help with this! Cheers

Hey! Great to hear back from you! Actually, I just got my X3 back from the mechanic last week after dealing with that injection system issue I mentioned. The total bill came to 95 € for fixing a faulty cable connection in one of the injector plugs, way less scary than I initially thought it might be! I'm happy to report the car's running like a dream now. No more jerking, stalling, or any of those worrying symptoms I described before. Fuel consumption is back to normal too, which is a relief for my wallet! Since the repair, I haven't noticed any other issues popping up, honestly, it feels like I'm driving a different car. If you're still looking for a mechanic, I'd say don't wait too long. Getting it fixed early really saved me from bigger problems down the line. Quick heads up though, make sure they thoroughly check all the connections, not just the obvious ones. That's what made the difference in my case. Let me know how it goes once you get it sorted!

I actually took your advice and got my X5 checked out yesterday! You were spot on about the fuel injector issue. The mechanic found two damaged connectors and some worn-out wiring, pretty much exactly what you described. They charged me 120 € for the complete fix, including parts and labor. Not too bad considering how worried I was about potential costs! The difference is like night and day. No more jerking, the engine's purring smoothly, and that awful smoke during acceleration is completely gone. The technician even showed me the old parts and explained how the damaged wiring was causing all those problems. Really glad I didn't wait any longer to get it fixed. Thanks again for sharing your experience, it gave me the push I needed to get this sorted before it turned into something bigger. The car's running better than it has in months! Cheers