Depending on the year of the van, 1st remove the plastic guard from under drivers side arch, 2nd remove wheel arch protector from same arch. 3rd, remove power steering front pulley and belt. 4th, at rear of motor you will see an adjuster slacken the two 13mm bolts, in centre of engine is a roller guide, slide belt off here 1st then off rest of pulleys. Re-route new belt sliding onto centre roller guide last (pig of a job otherwise), tension the belt using the tensioner you slackened (three quarter drive ratchet in square hole and as tight as you can get it), tighten thhe 2 13mm bolts. replace the power steering belt and pulley (this is the hardest job of it all) replace plastic arch covers. Job done.
paul.
October 2009