BMW is one of the world's most popular and renowned automobile manufacturers. Known for their luxurious design and powerful performance, BMWs are popular cars worldwide. However, like all cars, they can experience issues that affect their performance and reliability. One common problem that many BMW owners face is a malfunctioning crankcase ventilation valve. What is a Crankcase Ventilation Valve? Before diving into the specifics of the issue, it's important to understand what a crankcase ventilation valve is and what it does. The crankcase ventilation system is responsible for removing harmful gasses, such as hydrocarbons, from the engine's crankcase. It does so by drawing them out and routing them back into the engine's intake system, where they can be burned off safely. The crankcase ventilation valve plays a critical role in this pr ... read more