Quote:
Originally Posted by amacman
the crank vent system on your car could be different to what I previously described
a sure way to test for damage is to remove the air intake pipe from throttle where you should see a small pipe opening through which the crankcase gasses are drawn .
if you see engine oil from the small pipe that indicates a burst diaphragm .
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On a 2004-2006 X5 4.4L First of all Engine oil is designed to enter the Intake Manifold, this is to lubricate all the moving components. And second of all, the crank case vent valves are on the cylinder head covers, even a microcrack will cause the check engine lamp to illuminate(for NA vehicles). A completely torn diaphram will not have the same issues with the 3.0L or the older 4.4L.
To the OP, you will need to replace the intermediate levers and the most importantly the shafts as well. Each shaft is close to $1,000 in parts, that is why BMW wants to make sure thats the cause of the misfires.