HELP HELP HELP

Fabia vRS 1.9tdi 130

So i was driving on a 180mile journey, and 170miles in pulling off from traffic lights (sensibly) and there was a release of preassure (like a bus when it stops) then piercing squealing sounds coming from the turbo.

Previous to this everything ran sweet and there was no suspicious noises at all.

Any ideas what it could be would be great

and how it can be repaired (DIY preferably)

Any help will be greatly appreciated.

Sounds like a hose has split maybe, check all the boost pipes