My drive belt came off a month ago although both the belt and the pulleys seemed fine, I put it back on and continued drivng. The drive belt came off again when I started the car on saturday morning. The belt was shredded, down to just 3 ribs wide, also the back of the belt has been scraped away. I checked the pulleys and it looks like the tensioner pulley has gone, I'm sure there were two black pulleys there before. The tension arm must have been rubbing against the back of the belt....

I'd like to try and fit this myself but i'm not sure exactly what part I should be looking for or if it's easy to do, the space is restricted and if the engine needs to come out of the car then I'll have to take it to a mechanic. I think this is the part I need http://www.expressfactors.com/Single-Part.aspx?GID=USD" onclick="window.open(this.href);return false;^GBT8206^3872^DITS-EN^TENP
Also, I'm not sure there isn't more to fitting the belt than pushing back the tensioner arm and slipping the belt on.......
Thanks for any help, Kev