Hello and thanks for letting me in!
My GTI MK5 Ed30 is making weird creaking noises coming from the rear end when cornering hard, specially on track. It sounds like an old mattress.
I did inspect the rear end and everything looks solid, I added some WD40 to the rear sway bushes and raised the back a bit but the sound is still there.
Any idea what this can be? Is this the rear subframe coming loose?
The car has got Stage 2, Koni coilovers, LSD Quaife and 19" wheels.
I managed to put together a video where the sound can be heard and posted it on Youtube.
I add a picture of the car just to drag attention.