BMW XM Fuel System Struggles: Owner Seeks Expertise

Hey there! I had similar issues with my 2020 BMW X6 M last year. The symptoms you're describing sound very familiar. When my car acted up like that, I initially thought it was the fuel pump too, but it turned out to be faulty wiring connections to the fuel pump control module. The connector had corroded and wasn't making proper contact. The check engine light kept coming on, and the car would stall out of nowhere at stops. I took it to my trusted mechanic, and they diagnosed it properly after running some tests. The fix involved replacing the wiring harness and the connector assembly. It wasn't a super expensive repair like a full fuel pump replacement would've been, but it did require specialized diagnostic equipment to pinpoint the exact issue. If you're experiencing these symptoms, I'd recommend getting it checked soon. Bad connections can cause intermittent problems that might leave you stranded, and continuous poor electrical connection could potentially damage your fuel pump in the long run.

Thanks for sharing your experience with the X6 M! That's really helpful to know about the wiring being the culprit rather than the pump itself. Been keeping an eye on mine since getting it fixed, and I'm curious, do you remember roughly what you ended up paying for the repair? Also, has everything been running smoothly since, or have you noticed any other quirks pop up? Just wanna make sure I'm prepared in case I'm dealing with the same thing.

Hey again! Yes, I'm glad I could help with my X6 M experience! I actually just got mine fixed last week, and I can tell you exactly what it cost, paid 95 € for the repair. The mechanic found it was indeed just a faulty cable connection to the fuel pump, just like I suspected from my previous experience. Since getting it sorted, my car's been running like a dream! No more stalling, no check engine light, and the fuel consumption is back to normal. It's such a relief when these things turn out to be relatively simple fixes rather than having to replace the entire fuel pump. Looking back, I was smart to get it checked quickly, these kinds of electrical issues can get worse if you leave them too long. Trust me, you'll notice the difference right away once it's fixed. My car feels just like new again, and I haven't had a single problem since the repair. If you're dealing with similar symptoms, sounds like you're on the right track!

Thanks for all that detailed info! Just wanted to update you on my situation, finally got my XM checked out and fixed yesterday. You wouldn't believe it, but my issue was actually pretty similar to what you described. The mechanic I went to this time was much better than my last one. Found some corroded wiring that was messing with the fuel system. The repair was surprisingly reasonable, came in at around half what I was expecting to pay for a fuel pump replacement. What a relief! The car's running beautifully now, no more rough idling or starting problems. That check engine light is finally off, and fuel consumption is back to normal. Really appreciate you sharing your experience, it helped me feel more confident about what to expect at the shop. Sometimes it's the simple things that cause the biggest headaches, right? Anyway, just wanted to close the loop and let you know how it turned out. Thanks again for the helpful advice!