Good day: I bought a 2000 Jetta with a blown turbo for my son. Car is very well maintained and is also in due for a new timing belt. I already removed the turbo and yes the blades are damaged and they move all over. I already cleaned the intake manifold as well as the EGR valve. When I removed the exhaust manifold, I encountered lots of oil down the exhaust pipe as well as inside of the intercooler. I am replacing the intake oil line, plus the turbo as well as timing belt as I already mentioned. My question is, is it necessary to clean the intercooler and the pipes of oil? What happens if I dont? Wont the oil be simply burnt out? If I do have to clean it, what products should be used since I am working out of my garage. Am I missing something that should also be replaced, cleaned? Thanks for reading.