Has any one had aux belt jump the grooves causing the belt to rub the cam belt cover.This has just happened to me ,the inner part of the aux belt shaved off and was drawn between the crankshaft pulley and belt.Damage to the engine broken valves, cam,guides and possable piston rings. I had a warranty from WARRAHTY DIRECT they cannot accept my claim as they say the aux belt was fitted incorrectly, which was fitted 3 1/2 years and 34000 miles by renault .