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E46 (1999 - 2006)
The fourth generation 3 Series (E46 chassis) was introduced in 1999 and set the standard for engineering and performance during it's years of production including being named to Car & Driver's 10 best list every one of those years! ! -- View the E46 Wiki

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Old 08-25-2014, 03:09 AM
!RAY !RAY is offline
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Location: DUBLIN
Join Date: Mar 2010
Posts: 3
Mein Auto: 05 320D
breather oil valve

Hi all
I want to change the breather oil valve on my 320d bmw.
The valve is a plastic one should I change the casing to. About 30-40 price difference. What is a vortex valve.?
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Old 08-25-2014, 10:08 AM
Fast Bob's Avatar
Fast Bob Fast Bob is offline
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Location: Here, there, everywhere....
Join Date: Jun 2004
Posts: 34,343
Mein Auto: 2004 330Ci ZHP 3 pedals
This is a US-based Forum....we never got any diesel-powered E46s on this side of the pond, so they are pretty much unfamiliar here.
On petrol engines, we have what we refer to as the CVV (Crankcase Ventilation Valve) or "Oil Separator"....there are many diagrams of this device that you can use to compare it to the valve you`re referring to.
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