NHTSA Complaint #11493272 — 2010 BMW 328I

The car is experiencing rough idles and an imbalance in the overall performance. The PCV valve is not allowing enough air to return to the combustion chamber, creating a rough idle as the levels are imbalanced. It’s also causing a lean air to fuel mixture, oil leaks and increased fuel consumption. The PCV valve hoses became blocked by built-up moisture causing high pressure to be built up in the engine crankcase. The only way for this high pressure to escape is up through the cylinders and out of the gaskets, thus causing the gaskets to lose their seals. Oil is now able to leak out of the gaskets because the seal has been ruptured. I’ve already spent thousands of dollars on services including gasket changes.