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Old 01-21-2011, 10:01 AM
HPIA4v2 HPIA4v2 is offline
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Location: washington
 
Join Date: Mar 2006
Posts: 2,128
Mein Auto: E60, E71, E92
The second picture shows very clean oil separator, the funnel shape plastic part, at least the port that conect to driver valve cover. The hose looks in good condition but plugged with sludge badly.
I wonder if dealer replace the back cover of intake manifold? there is a rubber diagphram that can fail due to sludge and old age. Unfortunately hard to get to since the intake and fuel rail may have to come out, so I doubt they'll do this under CPO.

Also do you:
-use BMW oil, full syntetic 0-30W.
-drive on open freeway from time to time at 60-70MPH, for oh.. 15-20 miles.

I don't drive my X5 that much, but @70kmiles, the sludge problem on those hoses are less than yours.
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