In the previous engine teardown video, I removed the oil pan and oil pump to investigate why this BMW n55 engine had such a horrible knock. After seeing the spun bearing and the destruction it had caused, I decided to continue with the engine disassembly and take off the cylinder head off. There are quite a few steps to do this, such as removing the valve cover, the injectors, the fuel lines and all of the wiring. I also had to get a timing tool to hold the VANOS system in place to remove the timing chain. After all of this work was done, I was finally able to remove the cylinder head and inspect the valves and the mating surfaces.