Hi!
It's a really tough job.
In order to replace it, you need to jack up the engine a bit, unfasten the engine on the left hand side-close to the belt- remove the alternator belt etc...
But before you remove the cambelt, you need to block the camshafts in place with a special tool, on the right side of the engine, and block the crankshaft pulee as well.
Then remove the water pump and all the stuff that gets in the way. And to top it all, there isn't much space between the engine block and the shock absorber for you to slide your hands and remove the belt
I was told that putting in the new belt is even more difficult.
If you decide to do it or have it done, it is well advised to change the water pump and the tensor since they have a tendency to go at about the same mileage for one thing and because you would need to do the same complicated operation again!
I hope it helps!
Michel Malavialle, July 2005