V70 II 2.5 TDI Belts

[raffip]

I have a 2000 V70 II TDI 2.5 audi engine. The car stalled yesterday, and when I restarted it it made a noise like a tractor and started smoking. Under the bonnet the smoke was coming from the aux belt, and the tensioner was bouncing on the belt. I stripped the belt off and found the bearing on the roller had gone, so bought a new one.
While fitting this i noticed that the belt seemed out of line. On closer inspection the crank wheel at the bottom has separated from the aux belt thingy.
I removed the timing belt cover to find lots of sticky black goo on the belt itself.
What is going on?

[raffip]

here are the pictures to go with the post

[raffip]

The crank pulley has split, the black deposit on the timing belt is the rubber from inside the pulley. I am having a nightmare getting the thing off....
The car has only done 200 000 kilometers (120 000 miles), and up to 180 000 had a full service history.
This could easily have lead to a timing belt faluire so watch out.
The part here in France is only about 125 euros

[Clan]

Last time i bought a lower pulley it was over £200 .