I am trying to locate the root cause from where this engine is leaking oil so that I can buy all the right gaskets.
What confuses me is that highest spot where the oil traces are visible is around engine oil cap. Can oil seep upwards and defy gravity giving a wrong impression about the origin? Or is there a need to replace cap as well?
Also, there are some oil traces around what presumably is valvetronic motor. Could it be again seepage from a lower point somewhere else? Can oil vaporize and condense giving these traces?
This is 2008 BMW X3 30.si (n52 engine)