MK5 Golf GTI

All Things Mk5 => Mk5 General Area => Topic started by: peter_booker2003 on August 30, 2016, 11:01:34 pm

Title: Boost Pressure Control Valve and PCV? Confused
Post by: peter_booker2003 on August 30, 2016, 11:01:34 pm

Dummies question but I'm mega confused.

I hear people replacing the Cam Follower, Diverter Valve and the PCV as these are prone to going. Found the bits apart from the PCV.

Have searched and searched and I'm trying to work out if the Boost Pressure Control Valve and PCV Valve are the same thing or not? I've found a few photos of each and they look to be completely different but I don't want to order the incorrect item.

Thanks

Title: Re: Boost Pressure Control Valve and PCV? Confused
Post by: fab5freddy on August 30, 2016, 11:08:51 pm

Have a read through this thread, all you need in here

http://www.mk5golfgti.co.uk/forum/index.php/topic,44709.0.html (http://www.mk5golfgti.co.uk/forum/index.php/topic,44709.0.html)

Title: Re: Boost Pressure Control Valve and PCV? Confused
Post by: dronners on August 31, 2016, 01:16:06 am

I'd reccomend getting a pcv delete myself. No adverse effects and youve eliminated a problem area from the equation completely

Title: Re: Boost Pressure Control Valve and PCV? Confused
Post by: ROH ECHT on August 31, 2016, 03:08:23 am

Quote from: peter_booker2003 on August 30, 2016, 11:01:34 pm

Dummies question but I'm mega confused.

I hear people replacing the Cam Follower, Diverter Valve and the PCV as these are prone to going. Found the bits apart from the PCV.

Have searched and searched and I'm trying to work out if the Boost Pressure Control Valve and PCV Valve are the same thing or not? I've found a few photos of each and they look to be completely different but I don't want to order the incorrect item.

Thanks

Cam follower(or tappet) replacement depends on if the hpfp(rail pump) is oem or upgraded. If oem-stock...probably should replace by 80k to 100k miles. If upgraded with an internal plunger kit...should be replaced every 10k to 15k miles depending on its wear...which you would have to determine.

PCV should be replaced when it fails as well. Run the oem PCV unless you go through them often...then you can switch to a stage 1 block off or catch-can kit.

Boost pressure control valve? Do you mean N249 diverter valve or the N75 boost frequency valve? I believe you mean diverter(boost recirculation) valve.
The diverter valve should be replaced when it fails and you have no boost. Again, if fails frequently...upgrade it.

You can find DIY vids here for most bits as well as explanations of why you might need to:

Title: Re: Boost Pressure Control Valve and PCV? Confused
Post by: bonelorry on August 31, 2016, 07:09:57 am

These are the correct part numbers, I ordered some parts yesterday from my local TPS.....

Cam follower 06D109309C
Fuel Pump O-ring WHT005184
PCV 06F129101R & PCV Gasket 06F103483E
Diverter Valve 06F145710G

Title: Re: Boost Pressure Control Valve and PCV? Confused
Post by: peter_booker2003 on August 31, 2016, 08:05:58 am

Thanks for your help All. Massively appreciated.

Title: Re: Boost Pressure Control Valve and PCV? Confused
Post by: ducman77 on August 31, 2016, 09:14:25 pm

Quote from: peter_booker2003 on August 31, 2016, 08:05:58 am

Thanks for your help All. Massively appreciated.

MK5GolfGTI.co.uk rocks :smiley: :happy2: :pomppomp: :congrats:

Title: Re: Boost Pressure Control Valve and PCV? Confused
Post by: peter_booker2003 on August 31, 2016, 09:29:34 pm

Your right Ducman, bloomin brilliant!!