Oil level not reading?? Help!

[domsgrave]

Hello guys i have a 2013 135i with the n55 and dct, recently i been having an issue with my car shown in this mhd diag, ive replaced the oil level sensor, oil pressure sensor, and the connectors for both (pigtails) the car will read very shortly and show low oil and then inactive shortly after, my car leaks or burns no oil to where i should be a qt low as displayed until it eventually reads inactive. Any help is much appreciated!!

[zx10guy]

I had the same thing happen to my 135i. The car would report the engine was a quart low when I'm sure it wasn't. I also looked for any leaks which there wasn't any. I replaced the oil level sensor in the oil pan and that fixed the problem.

The only thing I can think of is maybe the oil level sensor you got is defective or counterfeit (as I don't know where you sourced it). I would also check the wiring harness that connects to the sensor. Someone else here reported problems with their oil level sensor. He posted up pics which showed something happened which toasted both the connectors at the oil level sensor and the wiring harness.

[domsgrave]

Yea that other guy was me as well, i found my oil level sensor burned up and charred so i replaced both sensor and harness connector, still nothing after that install

[zx10guy]

Ouch. That sucks. You'll have to get a wiring diagram and check what each pin does for the sensor and what the expected voltage level is. My fear is with how the connections at the sensor and harness were cooked that whatever caused it may have cooked something upstream too.