So I was under my car this weekend and noticed some Oil had accumulated on the trans and was dripping off. I traced the leak back up to the turbo area, pulled the intercooler and heat shield and noticed that the center housing of the turbo seemed to have a thin coat of oil on it. Note that the oil was all the way around the housing which made me think that it had to be the top banjo bolt. I gave the banjo bolts on the top of the turbo and side of the turbo a quarter turn but no luck. What is the next step here? I am not familiar with banjo bolts, is there a gasket or washer that can be replaced ? Is it possible that its leaking from somewhere else?
No oil in the compressor housing or intercooler other than the normal very thin coating, Didn't pull the downpipe so can't be sure there.