Trouble code 00575

[simontheaudinut]

Greetings to one and all.
I'm a new visitor to this site so I thought I'd introduce myself.
My name is Simon and I live just north of Nottingham and am a huge Audi fan having driven them for over twenty five years.
I have even converted my wife from an accolite of the"three pointed star". Even she ran out of patience with poor build quality and atrocious customer service!
Anyhow, to cut to the chase, I am in search of advice regarding my wifes A4 avant 19 tdi. We have noticed an intermittant loss of power along with increased exhaust smoke. During service, we had a report of trouble code 00575 manifold absolute pressure deviation from desired value.
Does anyone have any information or advice regarding the remedy for this situation?
With thanks in anticipation.
Simon.

[Crasher]

That is a turbo vane actuation problem, either due to a failure of the control system or a turbo with sooted up vanes.