BMW 7 Series Oil Sensor Nightmare, Fix Tips Inside

Hey there! I had a similar issue with my 2011 BMW 5 Series last year. The symptoms were nearly identical, oil sensor warnings, dashboard errors, and that annoying oil pressure light kept popping up. After troubleshooting, my mechanic found that the main oil level sensor connector had corroded, causing faulty readings. The wiring harness also had some damage where it connected to the sensor. It wasn't a super serious issue, but definitely needed fixing to prevent any potential engine damage from running with incorrect oil readings. The repair involved replacing the sensor unit and the damaged section of the wiring harness. While they were at it, they cleaned all the related connector points since these components are pretty sensitive to any interference. Quick tip: Before heading to a shop, check if your engine oil level is actually correct using the dipstick, sometimes it's just low oil triggering the warnings. But if the readings are inconsistent even with proper oil levels, it's likely an electrical issue with the sensor system. Hope this helps point you in the right direction!

Thanks so much for sharing your experience! That's really helpful info, especially about the corroded connector and wiring harness. Just curious, do you remember roughly how much you ended up paying for the whole repair? Also, has everything been working properly since then, or have you noticed any other quirks pop up? My dash is still going crazy with warnings, so I'm trying to get a sense of what I might be looking at cost-wise.

Hey again! Just wanted to give you a quick update on my repair costs since you asked. Turned out I was pretty lucky, it was just a bad cable connection to the sensor that was causing all that trouble. Got it sorted for 95 €, which wasn't as painful as I was expecting! The best part? Everything's been working like a charm since the fix. No more annoying warning lights, and the oil level readings are spot-on now. Such a relief not seeing those dashboard warnings anymore! The mechanic mentioned these sensor connections can get funky over time, but a proper repair should keep it running smoothly for quite a while. Honestly, based on what you're describing, it sounds pretty similar to what I dealt with. The multiple warnings and crazy dashboard behavior match up exactly. If you're still seeing those symptoms, I'd bet you're looking at something similar. It might not be exactly the same cost since prices can vary, but at least it gives you a ballpark figure to work with. Just glad I could help out another BMW owner, hope you get those warnings sorted soon!

Thanks for all the detailed info! I actually took your advice and went to get it checked out yesterday. You were right about the sensor connection being the culprit! The mechanic found the exact same issue, corroded connector and some damaged wiring. What a relief it wasn't something more serious. Ended up paying a bit more than you did, around 150 bucks, since they had to replace the entire sensor unit. But honestly, I'm just happy to have it fixed. The dashboard is finally back to normal, and I can actually trust my oil readings again. No more unusual warning lights giving me mini heart attacks! Funny how these BMWs can be so temperamental with their electronics, but when you find the right fix, they're solid. Really appreciate you sharing your experience, saved me a lot of worry and helped me know what to expect. Guess I'll be keeping an eye on those connections from now on!