dealer said that I was due an oil change and changed it again.That is how they discoverd it. It was not by mileage or time. But heck they did it for free.
I think I am going to get an oil cock valve so I can do it myself easily.
2012 Tasman green metallic with oyster/ black interior. premium pkg, power tailgate, homelink, and park distance control. Premium sound: premium hi fi system and satellite radio,technology package:
Rear view camera and navigation,Comfort Access,heated front seats, BMW apps