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Old 06-09-2015, 10:25 AM
cn90 cn90 is offline
Join Date: Jun 2014
Location: Omaha, NE
Posts: 1,232
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I just ordered the BMW OEM CCV parts for a CCV overhaul at 115K, simply because the original system is still fine at 115K, so I will stick to the stock setup for now.

However, in the future, if I have to do this CCV again, I may switch to this mod.

For comparison purpose:
- My 1998 528i (M52 CCV setup) consumes nothing between oil changes.
- My 2006 X5 3.0i (M54 CCV setup) drinks about 1 qt every 1,000 miles.

Since the CCV setup is very similar between M52 and M54, I think the oil consumption issue in M54 has more to do with the pistons rings etc. rather than the CCV thingy.

One another note, bimmerforums E39 M54 forum has something similar to the mod in this thread. See the DIY by mcgnms below:

M54 Oil Consumption Solved
1998 E39 528i 5sp MT
2006 E53 X5 3.0 6sp MT
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