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Author Topic: PCV Valve  (Read 29419 times)

Offline ub7rm

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PCV Valve
« on: March 05, 2012, 09:13:32 pm »
I recall reading that depending on what revision of PCV you have on your car, when you replace it you also have to replace or do something else - another check valve somewhere else?!  Sorry, thats a bit vague but I'm sure I read something of the sort here before.

Anyway, I'm looking for a bit more clarification on this if anyone can assist?
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Offline bacillus

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Re: PCV Valve
« Reply #1 on: March 05, 2012, 09:22:02 pm »
With the newer pcv's you also have to have a rear check valve that included in the rear pcv hose.
Early versions didn't come with the rear pcv check valve.
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Offline bacillus

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Re: PCV Valve
« Reply #2 on: March 05, 2012, 09:30:11 pm »
This is what the rear hose looks like.

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Offline ub7rm

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Re: PCV Valve
« Reply #3 on: March 05, 2012, 09:32:44 pm »
Ah ha...

I replaced my PCV about a year or so ago and given I have an early 05 GTI its more than likely I don't have this doofer.  Where abouts is this pipe, does anyone have a P/N and what would the symptoms be of not having the extra check valve?

Must say the car seems to be going fine with no particular issues...
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Offline bacillus

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Re: PCV Valve
« Reply #4 on: March 05, 2012, 09:42:09 pm »
This link show you where the rear breather hose with check valve is located. With your original set up the breather hose didn't have the check valve.
http://oooo-a3.blogspot.com/2008/03/pcv-replacement-and-eurojet-valve.html
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Offline Sie

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Re: PCV Valve
« Reply #5 on: March 06, 2012, 09:44:03 am »
Does this still need doing if you fit a catch can. Will it help? Or only needed for the revised pcv stuff?

Thanks
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Offline 56OctyVRS

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Re: PCV Valve
« Reply #6 on: March 06, 2012, 10:55:34 am »
The new part numbers are 06F 129 101 P for the PCV and 06F 103 215 B for the rear check valve.

The rear check valve is not needed when fitting a catch can but is needed if fitting the latest revision PCV if your car is older than an 07 plate.  I removed my catch can and refitted my PCV valve.  My reasons are contained within the link below.  I find that my engine runs smoother now with the PCV fitted than it did when I had the BSH fitted.
http://changegears.wordpress.com/tag/06f129101p/
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Offline ub7rm

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Re: PCV Valve
« Reply #7 on: March 06, 2012, 07:24:27 pm »
What happens if you don't fit the new hose?  I've not had it for over a year and I can't say I've experienced any issues.  I will change it but curious about what the benefit is?
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Offline Nodz

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Re: PCV Valve
« Reply #8 on: March 06, 2012, 07:26:42 pm »
As above as I changed mine but didn't change fit (or know about) the pipe with a check valve
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Offline 56OctyVRS

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Re: PCV Valve
« Reply #9 on: March 09, 2012, 01:59:06 pm »
If you want the latest PCV that will work on the earlier engines without the rear check valve you need the 'N' revision.  They are the same as the P only they work without the need for the rear breather hose as I believe they have stronger spring inside.  I am getting the N revision so I havent got to bother fitting the rear breather hose :jumpmove:
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Offline OEM+ DUB

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Re: PCV Valve
« Reply #10 on: March 09, 2012, 02:19:54 pm »
Quote from: 56OctyVRS on March 09, 2012, 01:59:06 pm
If you want the latest PCV that will work on the earlier engines without the rear check valve you need the 'N' revision.  They are the same as the P only they work without the need for the rear breather hose as I believe they have stronger spring inside.  I am getting the N revision so I havent got to bother fitting the rear breather hose :jumpmove:

That's good as I have done 3,500 miles on my revision N having changed it last September!
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Offline Nodz

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Re: PCV Valve
« Reply #11 on: March 09, 2012, 03:47:32 pm »
I'll check the invoice when I get home to see what revision it is
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Offline 56OctyVRS

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Re: PCV Valve
« Reply #12 on: March 10, 2012, 02:58:01 pm »
The part number for early VINS is 06F129101N and the rear breather hose is 06D103213G, which does not have a check valve in.
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Offline bacillus

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Re: PCV Valve
« Reply #13 on: March 10, 2012, 03:50:45 pm »
Quote from: Nodz on March 09, 2012, 03:47:32 pm
I'll check the invoice when I get home to see what revision it is
If you have a small mirror then you can check the pcv itself for the part number/revision.   :smiley:
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Re: PCV Valve
« Reply #14 on: March 13, 2012, 05:12:00 pm »
Would a duff PCV throw up an error code on VCDS or not?
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