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Author Topic: Intermittent Power Loss Issue Whilst Driving - Mk5 GTi (only 10 months olds)  (Read 45001 times)

Offline xxx_mojo_xxx

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Re: Intermittent Power Loss Issue Whilst Driving - Mk5 GTi (only 10 months olds)
« Reply #15 on: July 25, 2009, 06:49:18 am »
The stone chip idea did cross my mind...had the joy of that experience on an earlier car and it sounded totally different. 

Hey h...the dealers can have a look.
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Offline xxx_mojo_xxx

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Re: Intermittent Power Loss Issue Whilst Driving - Mk5 GTi (only 10 months olds)
« Reply #16 on: July 25, 2009, 11:35:36 am »
Dealers have confirmed it's the o/s front wheel bearing.  Got it booked in Monday to have it replaced - assuming they can get the part in time.

Does anyone think that the power-loss issue may be connected to this?

I'm just a bit disappointed that the bearing has gone so quickly.  Could this be connected to the lowering of my car?  I guess that may have exposed it to more pressure/wear?
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Offline xxx_mojo_xxx

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Re: Intermittent Power Loss Issue Whilst Driving - Mk5 GTi (only 10 months olds)
« Reply #17 on: July 28, 2009, 06:07:01 pm »
Whey hey... all sorted.  Nice new front bearing replaced under warranty.  Perhaps this may have an impact on the power loss issue? 
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Offline Rich

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Re: Intermittent Power Loss Issue Whilst Driving - Mk5 GTi (only 10 months olds)
« Reply #18 on: July 29, 2009, 07:56:34 pm »
Quote from: xxx_mojo_xxx on July 28, 2009, 06:07:01 pm
Whey hey... all sorted.  Nice new front bearing replaced under warranty.  Perhaps this may have an impact on the power loss issue?  



Good good  :smiley:  -  Well, your the only one who can answer that. Keep us informed...

I certainly would recommend VWR to check the power loss issue if it keeps recurring. They certainly know what they're doing, anyone here can clarify that, especially R.R   :happy2:

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Offline xxx_mojo_xxx

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Re: Intermittent Power Loss Issue Whilst Driving - Mk5 GTi (only 10 months olds)
« Reply #19 on: August 06, 2009, 11:31:56 pm »
Quote from: Rich on July 29, 2009, 07:56:34 pm
Quote from: xxx_mojo_xxx on July 28, 2009, 06:07:01 pm
Whey hey... all sorted.  Nice new front bearing replaced under warranty.  Perhaps this may have an impact on the power loss issue? 



Good good  :smiley:  -  Well, your the only one who can answer that. Keep us informed...

I certainly would recommend VWR to check the power loss issue if it keeps recurring. They certainly know what they're doing, anyone here can clarify that, especially R.R   :happy2:



Update:  No recurrence of the sudden power loss issue.  Still a bit sceptical whether its cured.  If I wanted VWR to have a look at it how much would they charge, and where are they based?
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Offline SteveP

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Re: Intermittent Power Loss Issue Whilst Driving - Mk5 GTi (only 10 months olds)
« Reply #20 on: August 07, 2009, 08:56:28 am »
Quote from: xxx_mojo_xxx on August 06, 2009, 11:31:56 pm
Quote from: Rich on July 29, 2009, 07:56:34 pm
Quote from: xxx_mojo_xxx on July 28, 2009, 06:07:01 pm
Whey hey... all sorted.  Nice new front bearing replaced under warranty.  Perhaps this may have an impact on the power loss issue? 



Good good  :smiley:  -  Well, your the only one who can answer that. Keep us informed...

I certainly would recommend VWR to check the power loss issue if it keeps recurring. They certainly know what they're doing, anyone here can clarify that, especially R.R   :happy2:



Update:  No recurrence of the sudden power loss issue.  Still a bit sceptical whether its cured.  If I wanted VWR to have a look at it how much would they charge, and where are they based?

VWR are in Milton Keynes, but general repairs or warranty work aren't their bag.

Maybe try a mainstream indie like APS in Brackley if your looking for someone in the bucks area.  :happy2:
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Offline xxx_mojo_xxx

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Re: Intermittent Power Loss Issue Whilst Driving - Mk5 GTi (only 10 months olds)
« Reply #21 on: August 24, 2009, 04:41:17 am »
Damn!!!   :fighting:  The power loss issue happened again last night whilst I was pushing the car a bit.  Twice!!!  :sad1:

It's totally weird - I'm not sure if something like the DV is failing or its something else...  :rolleye:

Appreciate any ideas of what I can check, or get the dealers to check whilst in for servicing tomorrow?

P.S.  Should I just replace the DV with the Forge one to eliminate the OEM DV from the equation?
« Last Edit: August 24, 2009, 05:10:31 am by xxx_mojo_xxx »
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Offline xxx_mojo_xxx

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Re: Intermittent Power Loss Issue Whilst Driving - Mk5 GTi (only 10 months olds)
« Reply #22 on: August 24, 2009, 04:45:35 pm »
UPDATE:  Dealership have been able to pick-up a registered fault code: "Turbo/Super Charger Underboost static" (00665 P0299 002)

I'm booked in to have the following replaced:

Pressure Regulating Valve
Part Nos: 06F 129 101L and 06F 103 48 E

Cut off Valve
Part No: 06H 145 710 D

Question 1a: Am I right to assume the "cut off valve" is the same as the "diverter valve"?
Question 1b: And is the part no. for the latest revision D that I have seen mentioned?

Question 2: What on earth is the pressure regulating valve?

Thanks in advance.


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Offline gazbutS3

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Re: Intermittent Power Loss Issue Whilst Driving - Mk5 GTi (only 10 months olds)
« Reply #23 on: August 24, 2009, 04:52:32 pm »
the cut-off valve is the latest piston type part no, as for the pressure regulating valve? N75?
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Offline Rich

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Re: Intermittent Power Loss Issue Whilst Driving - Mk5 GTi (only 10 months olds)
« Reply #24 on: August 30, 2009, 09:04:54 pm »
Hmm interesting...

Good to see they've found the problem ! :smiley:
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Phil Mcavity

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Re: Intermittent Power Loss Issue Whilst Driving - Mk5 GTi (only 10 months olds)
« Reply #25 on: August 30, 2009, 09:44:45 pm »
Sounds like you traction contol is cutting in... Have you tried turning this off and see if yours does it still. Mine does it, totally drops all power when i get too enthusiast on the faster pedal.To the point when it does you almost head butt the steering wheel. :confused:
« Last Edit: August 30, 2009, 09:46:20 pm by Phil Mcavity »
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Offline xxx_mojo_xxx

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Re: Intermittent Power Loss Issue Whilst Driving - Mk5 GTi (only 10 months olds)
« Reply #26 on: August 30, 2009, 10:15:10 pm »
Quote from: Phil Mcavity on August 30, 2009, 09:44:45 pm
Sounds like you traction contol is cutting in... Have you tried turning this off and see if yours does it still. Mine does it, totally drops all power when i get too enthusiast on the faster pedal.To the point when it does you almost head butt the steering wheel. :confused:

Surely, when you ease off the accellerator and try applying the power back on it should all be back to normal... and I can't see the traction control kicking in while at 6th gear on a bone dry road.

Thanks anyway  :jumpmove:
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Re: Intermittent Power Loss Issue Whilst Driving - Mk5 GTi (only 10 months olds)
« Reply #27 on: August 30, 2009, 10:21:11 pm »
no worries.  :happy2:
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Offline pazz

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Re: Intermittent Power Loss Issue Whilst Driving - Mk5 GTi (only 10 months olds)
« Reply #28 on: August 31, 2009, 10:34:00 pm »
Quote from: Phil Mcavity on August 30, 2009, 09:44:45 pm
Sounds like you traction contol is cutting in... Have you tried turning this off and see if yours does it still. Mine does it, totally drops all power when i get too enthusiast on the faster pedal.To the point when it does you almost head butt the steering wheel. :confused:

I share the frustration with this one Steve, I too have almost head butted the steering wheel. Can be kind of embarrasing on occaisons.

If the weather's dry and I'm pushing it I usually turn the TC off.
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Offline xxx_mojo_xxx

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Re: Intermittent Power Loss Issue Whilst Driving - Mk5 GTi (only 10 months olds)
« Reply #29 on: August 31, 2009, 11:33:23 pm »
To hazard a guess traction is probably more of a challenge with a K04 turbo - rather than my humble K03.
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