Quote:
Originally Posted by drummerman15
Also, there was a ton of oil and dirt between the intercooler and engine block - the electrics were coated. I suspect the vanos may have been slowly (or maybe not so slowly) leaking.
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That dirt and oil residue on passenger side is there simply because whoever changed the oil spilled it all over when aiming to the filler hole. It drains down behind the intercooler and those wires.
That residue can be found in every N63 engine after few regular oil changes at dealer. Yes, they are too busy to care where they throw the new oil. Just aiming somewhere under the hood and hoping part of it ends up inside the engine.