What is this pipe for?

fah320

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Nov 5, 2010
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Bursa/Turkey
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2001 E320 CDI
There is a little oil leak on the pipe going into the turbo from the engine as attached photo. It is not sealed, I could easily take it off when the engine was running; only oil vapor comes out of the pipe like it is breather pipe, not oil with pressure. I assume this oil vapour is leaking but my question is is this normal; should there be no oil going through this pipe or is it just the pipe is faulty???
 

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fah320

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Bursa/Turkey
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2001 E320 CDI
I probably found the fault; the part on the attached photo is called oil separator. Its function is to separate the oil from the engine ventilation by the filter inside. It seems that the filter is filled and therefore it can no longer separate the oil. I hope that I am right and the problem will be solved after the part change....
 

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fah320

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Joined
Nov 5, 2010
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54
Location
Bursa/Turkey
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2001 E320 CDI
This morning I drove 10 min at 4000 rpm which is normally enough to see some oil leak and not even a sign of a leak.
Seems like the problem is solved...
progress.gif
 

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