Mine isn't a TDi, just the standard Leon Cupra, but my experience of the Goodyears was that they were wonderfully grippy, but wore out in no time.
My original fronts (Dunlop) lasted for 15k, the Goodyears only did 8k. I went back to Dunlops for my next set (mainly because I didn't want to fork out any more at the time and thought I might as well use my brand new spare), and they have done 10k+ with loads of life left in them.
I'm in two minds what to buy for my next pair - the Goodyears have the edge for grip and noise, but to my mind top-of-the-range tyres should do better than half the life of the cheap ones.
I can't
help feeling there must be a tyre in between the two that gives a better balance between performance and cost. Any ideas?