BMW 2 Diesel: Stalling and Rough Running Issues Solved?

Hey there! I had a similar issue with my 2013 BMW 1 Series diesel. I've got some experience working on cars, but nothing too advanced, mostly basic maintenance stuff. Had almost identical symptoms to what you're describing. After dealing with the same frustration, I took it to my regular workshop. Turned out it was a loose connection in the wiring harness to the fuel pressure sensor. The mechanic found and fixed the faulty connection, which cost me 95 Euro in total. Car's been running smooth since then. Before jumping to conclusions about the ignition coil, could you share if you've had any other warning lights or if you've scanned for error codes? Also, when did these symptoms first start, was it sudden or gradual? This would help me better understand if your issue matches what I experienced with my BMW. Keep us posted!

Thanks for sharing your experience! I'm at 74493 KM and just had my service last month. The symptoms actually started pretty suddenly, just last week after a cold morning start. No other warning lights besides the check engine light. Haven't scanned for error codes yet since I don't have an OBD reader at hand. You might be onto something with the fuel pressure sensor connection. Now that you mention it, I did notice the symptoms seem worse when the engine is cold. The jerking and rough idle improve slightly after the engine warms up, but the poor acceleration is still there. Think I'll get it scanned first before assuming it's the ignition coil. Would rather know exactly what I'm dealing with before spending money on parts. Appreciate the heads up about checking the wiring connections, that's definitely a more affordable fix to hope for!

Hey again! Thanks for those extra details about your BMW, really helpful to know more about what's going on. when you mentioned the cold start issues and symptoms improving after warm-up, that sounds exactly like what I went through with my 1 Series! Just to share a bit more from my experience, before finding out it was the wiring connection to the fuel pressure sensor, I was also convinced it had to be something more serious (and expensive!). The symptoms on cold mornings were particularly annoying, that hesitation and rough running nearly made me late for work a couple of times. Getting it scanned is definitely the smart move here. When I got mine checked, the code pointed to fuel pressure irregularities, which led us to find that loose connection. Honestly, I was relieved it wasn't the ignition coil, would've been a much bigger hit to the wallet! Quick tip though, while you're waiting to get it scanned, maybe keep an eye on whether the symptoms change with the fuel level in your tank. In my case, I noticed the jerking was slightly worse when I was running on less than a quarter tank. Not sure if you're experiencing the same? Let us know what the scan shows. Really curious if you've got the same issue I had!

Thanks for all the feedback! You know what, I just checked and I've noticed the same thing about the fuel level, it does seem to act up more when I'm running low on fuel. That's another point matching your experience with the fuel pressure sensor theory. I managed to borrow an OBD reader from a so I'll scan it tonight and check those codes. Really hoping it turns out to be just a wiring issue like yours. The fact that both our cars show such similar symptoms, especially with the cold starts and fuel level correlation, makes me feel more optimistic that it might not be as serious as I first thought. I'll definitely update once I get those codes read. If it does turn out to be the fuel pressure sensor wiring, you've probably saved me from unnecessarily replacing the ignition coil. Thanks for taking the time to share your experience, it's been super helpful in narrowing down the possible causes!