M2 Oil Sensor Warning Signals: Owner Seeks Real Fix

I had a similar issue with my 2015 BMW M4 last year. The oil sensor symptoms were exactly what you're describing, multiple warnings and no oil level readings. Initially thought it was catastrophic, but turned out the main culprit was a faulty wiring harness connection to the oil level sensor. The connector had corroded and wasn't making proper contact. The mechanic found that moisture had gotten into the connection point, causing the corrosion. They had to replace the entire wiring harness assembly and the oil level sensor itself. The job took about 4 hours total. Not a serious mechanical issue, but definitely something that needed immediate attention since you can't properly monitor oil levels without it. I'd definitely get it checked soon, driving without accurate oil readings isn't worth the risk to the engine. Make sure they inspect both the sensor and the wiring harness thoroughly. Mine started with similar symptoms but would've gotten worse if left unchecked.

Thanks for sharing your experience! It sounds exactly like what I'm dealing with right now. Glad to hear it wasn't anything too major in your case. Do you remember roughly how much you ended up paying for the whole repair? Also, has everything been working properly since they fixed it? Been a bit nervous about potential recurring issues with these sensors.

Hey there! Just wanted to update you since I know you're dealing with a similar headache. After my previous post, I took it to a mechanic who diagnosed it as an "Oil level sensor signal faulty" issue. The good news is, it's all sorted now! Turned out to be way simpler (and cheaper!) than my previous repair experience I mentioned. They found a dodgy cable connection to the sensor, basically just needed to fix the plug connection that had gone bad. Only cost me 95 € which was a massive relief compared to what I initially feared. Everything's been working perfectly since the fix, no more warning lights, and the oil level readings are back to normal. Such a relief! My dashboard is finally back to looking normal instead of putting on a light show. Trust me, you won't regret getting it checked out. These sensor issues can seem scary at first, but they're often pretty straightforward fixes. Fingers crossed yours turns out to be something similarly simple!

Thanks for the follow-up! Just got back from the mechanic today actually. You were right, it wasn't as terrible as I feared. Had a different issue though, turned out my sensor was completely dead and needed replacing. The mechanic showed me how the old one was basically corroded through. Cost me more than your repair, around 400 bucks including labor, but honestly, I'm just relieved it's fixed. No more warning lights, and I can finally see my oil levels again! The mechanic I found was actually pretty great, took the time to explain everything and even showed me the old part. Funny thing is, I was so worried about going to a mechanic after my last bad experience, but this guy totally changed my perspective. Sometimes you just need to find the right mechanic for the job, I guess. Thanks again for sharing your story, really helped me take the plunge and get it sorted!