MK5 Golf GTI
All Things Mk5 => Modifications & Technical Area => Performance Modifications => Topic started by: dan_gti on April 02, 2013, 11:42:27 pm
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I apologise as i know this has probably been solved many times before.
I have a stock mk5 gti which I am planning on having remapped. In preparation I have ordered a Pipercross panel filter and plan on removing the pre-cat from the DP.
Finally I wanted to make sure I had the correct diverter valve in place. The photo below is of my diverter valve which I believe is a rev G?
Is this the most recent revision or should I change to the rev D valve with the piston?
(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fjj590%2Fdanclifton18%2F236632ea-71f7-45c2-b263-bba254a4ca46.jpg&hash=b7566ccc260cf3a75c4963001b87e737a1fa8404)
Cheers
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That is a revision G. The part number is the second line of text and the revision letter is always at the end.
Don't bother with the rev D.
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Heard and read lots of reviews that G is the one to go for, including Nick at R-Tech. Out of interest how did you find locating it? Front wheel off job?
Si
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Have D ATM but want to try G, when I can be bothered to lift the car.
If your G has been in a while it might be worth taking off to inspect or replace...
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Heard and read lots of reviews that G is the one to go for, including Nick at R-Tech. Out of interest how did you find locating it? Front wheel off job?
Si
Just jacked the drivers side of the car up, put a stand under wishbone, got under car from front and it's located just behind the driveshaft. Looks tricky to remove purely due to inaccessibility.
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Have D ATM but want to try G, when I can be bothered to lift the car.
If your G has been in a while it might be worth taking off to inspect or replace...
I'm thinking I probably will take it off to inspect it. Just wondering what the benefit would be of having G over D as I believe the rev D is the most up to date and robust revision?
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Have D ATM but want to try G, when I can be bothered to lift the car.
If your G has been in a while it might be worth taking off to inspect or replace...
I'm thinking I probably will take it off to inspect it. Just wondering what the benefit would be of having G over D as I believe the rev D is the most up to date and robust revision?
Wrong..it's not the the most up to date. It's not fitted to the 2.0tfsi. G is the correct version to fit.
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D is the most expensive, but have been known to leak from new, G seems the best all round, but will need replacing at some point.
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D is the most expensive, but have been known to leak from new, G seems the best all round, but will need replacing at some point.
Think i'll just order a rev G then and replace it anyway as the car is almost 5 years old now. Saves taking it apart to inspect and finding it's knackered and having to refit it.
Thanks
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I've tried both D and G, personally prefer the rev G. My car doesn't seem to like the D, doesn't feel smooth upon gear changes, like it's sticking or something...
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So what would have been on the car from new? I have a 57 plate ED30. In other words, were any supplied with the Rev G fitted? Or was this a post production upgrade issued by VW for DV failures?
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So what would have been on the car from new? I have a 57 plate ED30. In other words, were any supplied with the Rev G fitted? Or was this a post production upgrade issued by VW for DV failures?
I went to change my gf's dv and it was a rev g fitted. This was on an 08 ed30 :smiley:
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G
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G
x2
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Ah, OK. So a mod I thought I needed that I actually don't. Result!
Thanks all.
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I went with the piston type rev D, after the rev C diaphragm split I didn't want another part of similar design.
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Does the DV ever get checked if the car is serviced by a dealer?
I've got a stock GTI that is 06, 68k miles. It's always been serviced by a VW dealer. I might get it mapped in the summer to Stage 1.
I'm not even sure which DV it currently has on there. It's the only GTI I've driven so not really sure if its 'down' on power etc. What would you recommend? Is it best to get it put on a Dyno to see what condition its in? Or going along to a good independent who can take the DV off and have a look? When I asked last time I was at the VW dealership I just got a blank stare.
Thanks for your help!
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Does the DV ever get checked if the car is serviced by a dealer?
I've got a stock GTI that is 06, 68k miles. It's always been serviced by a VW dealer. I might get it mapped in the summer to Stage 1.
I'm not even sure which DV it currently has on there. It's the only GTI I've driven so not really sure if its 'down' on power etc. What would you recommend? Is it best to get it put on a Dyno to see what condition its in? Or going along to a good independent who can take the DV off and have a look? When I asked last time I was at the VW dealership I just got a blank stare.
Thanks for your help!
If your planning on a remap and as far as you are aware this hasn't been looked at before, then I would be changing it. It's not part of VW's scheduled service plan to check the Diverter valve.
if its the ORIGONAL one, chances are at that age it will be split.
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Great, Thank you.
How would you recommend to change it? I am pretty rubbish at these kind of things and would probably crush myself under the car.
I can either ask VW next time I am nearby, although I fear they will rip me off heavily for doing so, or find an Independent around here? Also, I know its quite tricky to change on a K03 GTI, but is there any way I can shove my iPhone in its approx location to take a photo to determine which version is already on there?
Thank again!
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Are there no uprated DV valves? Ie forge, APR or the likes?
Sent from my GT-N7105 using Tapatalk 2
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Are there no uprated DV valves? Ie forge, APR or the likes?
Sent from my GT-N7105 using Tapatalk 2
I would stick with the oem one.. dont waste your money on aftermarket stuff when it comes to these.
These are best accessed via the drivers side front wheel arch when wheel is removed.
2 axel stands on the front and on your back you go...just under the turbo from accessing underneath on the k03 cars
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Thank you for all your help. I'll get a new 'G' DV fitted and see what happens.
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I had changed to a rev d a while back and whilst it operates ok always felt it didn't have the same responsiveness. This was confirmed as one of my little jobs at weekend was to install a new rev g. Car now has much more pull and less lag/ hesitation. The d looked in good condition but must have been leaking some boost.
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G works and is air tight, The Ds work but bleed off boost from day one and get worse as they age.
I have tested 2 cars over the last week using uprated springs in the DVs, I have fitted spring which are 12.5% stiffer than the oem ones, the results so far are seeing much sharper crisper transition between gear changes. Need to test a few more cars inc Ko4 and the 25% spring we have.
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G works and is air tight, The Ds work but bleed off boost from day one and get worse as they age.
I have tested 2 cars over the last week using uprated springs in the DVs, I have fitted spring which are 12.5% stiffer than the oem ones, the results so far are seeing much sharper crisper transition between gear changes. Need to test a few more cars inc Ko4 and the 25% spring we have.
Do you have one spare that you can post nik? I dont mind trying it out, providing its not gonna make my car go bang! :signLOL:
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We want to do the testing in house. So we know how each car reacts to each % version. The on off development springs are costing about £25 each at the moment due to tooling costs so cannot go crazy until we start to get them mass produced once we have found the best combinations for each stage of tune.
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Ohh ok no probs!
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Ohh ok no probs!
Maybe you could go for a remap and do the test while your there :wink:
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Like the sound of that
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Ohh ok no probs!
Maybe you could go for a remap and do the test while your there :wink:
yeah sure... if its free!!!!! :popcornsoda: :popcornsoda: :popcornsoda: :popcornsoda: :popcornsoda:
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Keep us all posted on the results of this I'd be interested if it all checks out.