MSW’s Take: We’ve found a bad CCV system to be one of the most common issues causing poor engine performance. Cracks in the fittings can create massive vacuum leaks and increased oil consumption. This M54 CCV kit is the standard non-Cold Climate version, which we prefer for race cars due to easier installation and access. For street cars, the cold climate version is usually preferred.
A crankcase vent valve kit is designed to release pressurized gas from an engine in a controlled manner. The plastic components deteriorate over time, eventually cracking or breaking, which causes vacuum leaks or other issues that can cause engine damage or poor performance. Replace a broken breather system with a Febi Bilstein crankcase vent valve kit to maintain optimum engine performance.
BMW Part Number: 09 5448 010
Includes all needed hoses for replacing the entire CCV system.