Just going to bump this for any future searchers mainly.
My golf has just been in for the chain and tensioner replacing, the chain was fooked. Fully fooked! Apparently there was loads of slack and twisting movement once it was off. Knowing what i know now I'd have changed it long ago just incase it decided to snap

My friendly vw specialist did it with genuine parts and also changed the dsg oil & filter for new vag parts for less than £500 all in, well worth it! I can hear the fuel pump rattle now, its oddly nice to hear it
