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#2
21st October 2015, 11:17 AM
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It needs further investigation by someone who understands basic faultfinding procedures and has decent diagnostic tools.
I wouldn't waste your time changing parts until it's been established if you have one or more underlying faults. ElsaWIN suggests there's a procedure for checking the actuator, which involves fitting a new link and confirming the turbo actuator is free and moves to where it's supposed to based on electrical signals received from the control unit. This thread looks very similar in terms of symptoms and fault codes http://www.vwaudiforum.co.uk/forum/s...den-Power-Loss It needs to go to a proper VAG specialist with the necessary tools - the VAG tool for testing the control unit is 'Tester for E-positioner -VAS 6395-'
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===SOLD===2002 Audi S8 D2 Final Edition (yes, really) in Avus Silver with purple extended leather===SOLD=== 2011 S5 Sportback in Phantom Black with black Super Sports leather, 9x20s, tech pack high, adaptive xenon plus, intelligent key, memory seats pack, sunroof, B&O, Audi Drive Select & quattro Sports Diff, DAB, parking system plus 2015 VW Golf GTI Performance Pack in Carbon Grey with black Vienna leather, tech pack (Discovery Pro nav & Dynaudio), DCC, factory towbar and retrofit RVC 
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#3
21st October 2015, 01:12 PM
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Thanks mate did have a look at that and will try to find a specialist in Birmingham by Friday to have a proper look at it. Central VW Audi told me £72 just to plug it into their machine... so not happy with that.
Anyway... I did some investigating... I found that there are two actuators in my car, one at each side, and perhaps this is where I am hoping for some insight from you guys... On one side, when the engine is off, the actuator is in the "up" position... but the other side is in the "down" position. When the engine is on - the side that was "up" is pulled down, and only goes back up when I rev the car... The other side however which started in the downward position does not move from its "down" position - so it remains there, and even under revving it does not move. Could this be the issue? Or is this merely normal operation?
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#4
21st October 2015, 01:54 PM
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I'm not familiar with the Diesel engines but it would be a fair safe assumption that on v engines that actuators would behave the same on opposite sides of the engine, possibly in mirror to the other side but if one moves while revving and the other doesn't then it would point to an issue with that area.
Can you swap the items to see if the fault moves
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Del 
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#5
21st October 2015, 02:06 PM
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That will probably be fault code 12597 intake manifold runners on 1 side
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Currently 8less 2011 Q7 S Line 3.0TDI, 2016 Tesla Model S 90D 8 history: 2006 A8 Sport 4.2TDI quattro SOLD, 1997 S8, reached end of life with gearbox failure
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#7
21st October 2015, 07:49 PM
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If the DPF was blocked, you would almost certainly have a warning on the dash and fault codes. It has temperature probes and back pressure sensors. It sounds like one of the inlet manifold flaps is broken for sure. I'm don't know if that causes your power problems, but it cant help. I have read about repair kits, but never had any experience of the problem myself *touch wood*.
Last edited by snapdragon; 21st October 2015 at 07:51 PM.
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