Oil Level Sensor O-ring, Elring - N20, N55, B46/B48, B58, S55

An oil leak around the sensor in the oil pan is a common BMW problem. This o-ring can harden and shrink over time causing oil to leak around the seal. This is easy to replace when doing an oil change. It's important to replace the o-ring so leaked oil stays out of the sensor connector.

This is an OEM Oil Level Sensor O-ring for N20, N55, B46/B48, B58, S55 engines manufactured by Elring Klinger - an original supplier to BMW for many gaskets and seals. As an OEM it meets all of BMW's original design, fitment, and performance requirements and is TUV approved. OEM parts are the best alternative to more expensive Original BMW parts because they are virtually identical without the inflated price tag. This part has a two year warranty.