2006 4.2 tdi noise on acceleration

[Duff3103]

Hi all, i bought my d3 in november last year, on road test i never noticed a noise as the boy was blethering on about how well built these cars were bla bla bla, anyway i noticed the next day when i had the window down as i never really gave the car any boot, upon acceleration there is like a high pitched squeal which i have a suspicion is the turbo.

Iv fixed a couple of minor faults on the car already ie short to earth to the fuel metering valve on the high pressure pump, a glow plug, both upper suspension arms on passenger side as well as the front drop links to cure a knock and reset the pad thickness on the rear as the pad light was on but the pads were new.

This fault however im baffled by this one as i simply cannot find the location of it although its in the engine bay, iv had the exhaust off from the dpf's back in case there was a leak in the system somewhere but was certain it wasn't that, iv had the air filters off on both sides to see if the noise will replicate from there, iv smoke tested the exhaust and intakes for any leaks as i thought it could've been a minor leak on an intercooler or intercooler hose but nothing showed up there either, although on searching it seems the a/c clutch on the compressor is knackered as well as the radiator leaking slightly at the passenger side

im hoping by posting a short video of the fault one of you might have had the same fault and are able to pin point the exact fault

thanks