R53 06 Cooper S

[gijosh]

the other day my serpentine belt disintegrated. i put a new belt on and 2 hours later it did it again. this only happens when i really get on it. but as soon as i put the belt on i really hit it hard and it didnt do it. but 2 hours later it did. what the hell is the problem?

[bad venge]

check tensioner bearings I've seen them go and cause the belt to derail and desttroy them ... Also check all components for proper alignment