For a little while now the bonnet insulation on my 08' GTi has been shedding, sagging and falling apart where it sits in the bonnet at the rear edge. After reading many posts on various forums it seems its not uncommon and its a good idea to replace rather than remove as it might be designed to drop onto the engine in case of a fire and smother it (not sure how well this would work).
Anyway, I got a new one today from my local dealer - P/N - 1KO 863 831 D @ £44.54 + Vat
It comes already fitted with new plastic clips and is a doddle to fit.
Just though I'd post in case anyone else was having the same problem. The new one seems a little stiffer, is made of different insulation material and has metal type heat shield at the front end.
Old one with bottom edge falling apart.
My original bodge with some speed tape.
Nice shiney new one!