BMW X6 Power Loss and Rough Running, Diagnosis Help?

Hey there! I have some experience working on BMWs. Actually, I had a similar issue with my 2021 X4 last year. The symptoms you're describing sound exactly like what I went through, the power loss and jerking were super annoying. Turned out one of my fuel injectors was faulty. Had to take it to my trusted workshop and they diagnosed it pretty quickly. The repair, including parts and labor, set me back about 515 Euro, but it fixed the problem completely. The car's been running smooth as silk since then. Before I can be more specific, could you share some extra details about your X6? What's the engine size, mileage, and have you noticed any other warning lights or unusual sounds? Also, when did these symptoms first start showing up? My case might be similar to yours, but these details would help confirm it. Quick tip, don't wait too long to get it checked. Driving with a bad injector can cause more expensive problems down the road.

Thanks for sharing your experience! My X6 is still pretty new with 161991 KM on the clock, and I just had it serviced recently. I'll definitely get it checked ASAP, don't want to risk any additional damage. The symptoms started about a week ago, and they seem to be getting worse, especially during cold starts in the morning. No unusual sounds, just that annoying jerking and power loss you mentioned. The check engine light is the only warning showing up on the dash. Good to know about the injector issue, I'll mention that when I take it in. Hopefully, it's something similarly straightforward and won't break the bank too much!

Hey again! Thanks for those extra details about your X6. Yeah, those symptoms getting worse during cold starts really rings a bell, that's exactly what happened with my X4 before I got it fixed. The injector issue usually shows up more when the engine's cold. After fixing my injector, I learned that these problems are actually pretty common in newer BMWs. The injectors are quite sensitive, and sometimes they can act up even with regular maintenance. Mine started playing up around 150000 KM, so we're in the same ballpark mileage-wise. Quick heads up, when I first noticed the symptoms in my X4, I tried to push through it for a couple of weeks (big mistake!). The jerking got way worse, and I was lucky it didn't cause any damage to the catalytic converter. Since your symptoms are similar and getting worse, definitely don't wait around. The good news is that if it is an injector, it's a pretty straightforward fix. My mechanic had my car back to me the same day. Keep me posted on what you find out, I'm curious if it turns out to be the same issue. These newer models can be tricky sometimes, but once you sort out these little problems, they're fantastic cars.

Thanks so much for all the detailed advice! You've definitely helped ease my mind about this. I've actually just booked the car in for tomorrow morning, figured better safe than sorry, especially after hearing about your experience with waiting. Really appreciate the heads up about potential catalytic converter damage too, that would've been a nasty surprise! I'm hoping you're right about it being the injectors. The similarities between our situations are pretty striking, especially with the cold start issues and the mileage being so close. It's good to know it might be a same-day fix too. I was worried I'd be without the car for ages! I'll definitely update you once I get the diagnosis. If it turns out to be the same injector problem, at least I know roughly what I'm in for cost-wise. Thanks again for taking the time to share your experience, it's been super helpful having someone who's been through the same thing!