Just to let everyone know, the auxillary belt came off my '07 Astra 1.7 CDTI (DTH) in November, no damage was done, maybe because it stalled the engine, i dont know, but Vauxhall refitted it (they were supposed to put a new one in, but i think its the same one) and they couldnt work out how it had come off.
This happened to anyone else??
Also, when it came off, the brakes seized up, so i had to stop the car by handbrake/engine braking - deadly, no??