MK5 Golf GTI

All Things Mk5 => Mk5 General Area => Topic started by: faheem on July 30, 2011, 07:47:48 pm

Title: loss of power
Post by: faheem on July 30, 2011, 07:47:48 pm: hello people, i have recently noticed my mk5 gti is not moving like it normally does, what i seem to have discovered is that when i put my foot down there is a prolonged hissing noise? normally when i release the pedal there would be a short hiss which is to do with the turbo which is normal but in this case now, as soon as i put my foot down it starts and does not stop untill i release........

anybody got any idea of what this could be ?
Title: Re: loss of power
Post by: vRS_Pagey on July 30, 2011, 07:53:47 pm: Could be the DV mate.

Mine was doing something similar - perhaps not as bad - and the problem was a split diagphram on the divertor valve, a lot of people have upgraded to the rev 'd' which is a piston type so far superior......

(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fpagey1255%2FRandoms%2FDVSplit1.jpg&hash=568957b62215943a7f05d0a7ecfdc0bc5160ecf1)
Title: Re: loss of power
Post by: bacillus on July 30, 2011, 08:00:13 pm: Quote from: vRS_Pagey on July 30, 2011, 07:53:47 pm
Could be the DV mate.

+1
Title: Re: loss of power
Post by: Weston on July 30, 2011, 08:23:37 pm: Another vote for the DV :happy2: Should be an easy fix
Title: Re: loss of power
Post by: faheem on July 31, 2011, 07:11:14 pm: thanks lads hope that is all it is !
Title: Re: loss of power
Post by: janus909GTI on July 31, 2011, 07:14:20 pm: how much does this cost to buy and fit? can it be fitted to any model?
Title: Re: loss of power
Post by: bacillus on July 31, 2011, 07:31:13 pm: Quote from: janus909GTI on July 31, 2011, 07:14:20 pm
how much does this cost to buy and fit? can it be fitted to any model?

It's around £40ish for the latest D version and you can fit it yourself (easier if you have an ed 30). :smiley:
Title: Re: loss of power
Post by: vRS_Pagey on July 31, 2011, 07:37:36 pm: I paid around £55 inc VAT a few months back.
Title: Re: loss of power
Post by: faheem on July 31, 2011, 07:40:28 pm: where did you buy it from mate ?
Title: Re: loss of power
Post by: Janner_Sy on July 31, 2011, 07:53:50 pm: deaerships or tuners etc http://www.jkm.org.uk/performance/tfsidiverters.htm (http://www.jkm.org.uk/performance/tfsidiverters.htm)£45+ VAT @ JKM
Title: Re: loss of power
Post by: crashdesk on July 31, 2011, 08:01:15 pm: So the diverter will almost definitely need Changed on all mk5 GTIs?
Title: Re: loss of power
Post by: vRS_Pagey on July 31, 2011, 08:46:22 pm: If it has the old diagphram type then I would change it anyway (which I think mkV's do), the new rev 'D' type is pretty much indestructable. :happy2:
Title: Re: loss of power
Post by: scotta on August 01, 2011, 10:01:47 am: I had the old diaphram one on my Ed30. There was nothing wrong with it but i changed it for the D revision one as a matter of course.

10 min job on the Ed30. Slightly more difficult on the standard GTi.
Title: Re: loss of power
Post by: Weston on August 01, 2011, 11:35:18 am: Quote from: crashdesk on July 31, 2011, 08:01:15 pm
So the diverter will almost definitely need Changed on all mk5 GTIs?

Mine had a massive gash in the side. Made a big difference changing it for the D version :grin:
Title: Re: loss of power
Post by: FamilyDub on August 01, 2011, 02:54:59 pm: Quote from: faheem on July 31, 2011, 07:40:28 pm
where did you buy it from mate?

^^ OEM part from dealer 40ish plus VAT, IIRC.

Part number 06H 145 710 D, although I was told at the dealer 06H 147 710 G was a piston-type valve too. :happy2:
Title: Re: loss of power
Post by: vRS_Pagey on August 01, 2011, 04:57:53 pm: I think rev 'G' is the latest, no different to the rev 'D' AFAIK.