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Old 01-20-2013, 01:08 PM
Supercourse Supercourse is offline
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Mein Auto: 2004 X3 2.5i
Originally Posted by shendrick View Post
...... they also replaced the valvetronic gasket. Seems to me that if you plan to do it yourself, you should consider doing both as long as you're in there.
awdrev lucks out on that - no valvetronic on the 2004's M54 engine.

OFHG leaks I don't think will provide any clues to the nose.
The drips just accumulate on the plastic underbody shield until they reach a point where they find a hole in the plastic to drip on the ground.

If VCG leaks start at the rear half-moons it might be quite a time before any accumulation reaches where it can drip onto the exhaust manifold.
But being so close to the cabin air intake I would think the smell of (unburnt) oil might be noticeable before then.

For the Oil Separator I would just rely on how the underside of the oil filler cap looks, and checking the hoses for it when doing a OFHG - or anything involving serious removal of lower intake components.
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