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2006 BMW 530i Idle Shaking/Vibrating

Old 02-21-2013, 02:28 PM
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Originally Posted by kushane View Post
If you open your oil filler cap, you should a very slight amount of vaccuum. Any airflow out of it or very strong suction would most likely point to a bad ccv (oil seperator). There's a thread on here somewhere on how to diagnose ccv issues.
You want this done with the engine running i'm assuming? I'll give it a whirl!
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Old 02-23-2013, 07:23 PM
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Originally Posted by code37 View Post
You know what, something's cracked in the engine baby, i'll show you a photo E60 - Imgur , there isn't any loss in oil level or oil readings, but there sure is oil in the engine bay.

The location of the oil is leading me to the oil filter housing gasket, which isn't uncommon. The leak would cause oil to splatter on the belts making a mess (much like what you have there).

I would also check out the valve cover gasket bolt. They tend to snap and cause oil to seep through the valve cover. You can check by looking for leaks on the red gasket and checking the tightness of the bolts. I had 2 that I pulled out by hand (magnesium bolts) and had to extract the remaining part from the cylinder head. Wasn't really that hard.

Some general advice: when taking the engine cover off (plastic) leave the back screw off. This way you don't have to keep taking the cabin filter assemblies off when you wanna peak underneath.
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Old 02-25-2013, 01:22 PM
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You better hope it's not an Accentric Shaft Sensor...But only way you're going to know is to diagnose it with BMW equipment. That is a $300 sensor and is a labor intensive process.
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