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Author Topic: Mk 5 Golf gti boost leak  (Read 6908 times)

Offline RedRobin

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Re: Mk 5 Golf gti boost leak
« Reply #10 on: 03 December 2008, 18:52 »
....

Just posting to subscribe to this thread in case I can be of help - I had a boost leak due to a cracked wastegate. But let's cross that bridge if and when we come to it.

Check out the DV and PCV first.

:afro:
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Offline chungster

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Re: Mk 5 Golf gti boost leak
« Reply #11 on: 03 December 2008, 19:30 »
Robin,

Did JKM take a pic of the cracked wastegate??  Have you just got them to replace that part or have you said sod it bung the K04 on there while the turbo is off?  :drool:

I'm surprised the wastegate has cracked tho. didn't think stage 1 or 2 remap was running it that hard!
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Offline RedRobin

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Re: Mk 5 Golf gti boost leak
« Reply #12 on: 03 December 2008, 19:46 »
Quote from: chungster on 03 December 2008, 19:30
Robin,

Did JKM take a pic of the cracked wastegate??  Have you just got them to replace that part or have you said sod it bung the K04 on there while the turbo is off?  :drool:

I'm surprised the wastegate has cracked tho. didn't think stage 1 or 2 remap was running it that hard!

....Hi Chungster,

I don't want to hijack this thread by going into detail here. I've written an extensive report on the other GTI forum: http://www.mk5golfgti.co.uk/forum/index.php?topic=493.0 - I hope that it's acceptable to post this link to another forum for the purposes of helpful information.
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Offline chungster

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Re: Mk 5 Golf gti boost leak
« Reply #13 on: 03 December 2008, 20:46 »
cheers for that RR...always good to know stuff like that!

glad the car is back to full health!
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Offline vRStu

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Re: Mk 5 Golf gti boost leak
« Reply #14 on: 04 December 2008, 10:37 »
To check the DV on a K03 turbo you'll need to access it from under the car.  Three allen bolts hold it in place.
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Stu

Offline keyser

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Re: Mk 5 Golf gti boost leak
« Reply #15 on: 05 December 2008, 18:34 »
I'd be 90% sure it's  the diverter valve.  It's proper name is the cut-off valve.  Go to your local dealer and order part number 06f 145 710 g.  Older cars have the 06f 145 710 b.  This was a weakness which suffers with the increase in boost from the remap.  Personally I would get a mechanic to fit it.  Don't starting f**ing around allen keys or you could do more harm than good.  The part itself is about £30 and fitting another £30.  You can get the forge one if you prefer but personally I don't think it is necessary.
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Offline grcmoto

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Re: Mk 5 Golf gti boost leak
« Reply #16 on: 08 December 2008, 12:00 »
Thank you all very much for some great help it is much appreciated!!
I'll get it looked at and let you all know what the problem was..

Thanks again

Andy
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Offline AlanD

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Re: Mk 5 Golf gti boost leak
« Reply #17 on: 08 December 2008, 12:38 »
If its mapped Id suggest getting the Forge one: http://www.forgemotorsport.co.uk/content.asp?inc=product&cat=260303DV&product=FMFSITV

Getting mine along with the map next week to avoid this situation in the first place.
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