chip i know what the problem is, i thought it was not lining up BUT this is on BOTH catches at the same time, the holes are worn the same and they was fine before,,,, now both fail together sounds iffy but the lining up is spot on and not catching as it took me AGES to perfect it when i fitted them,,,,, then again when i took the bonnet off and had to realign it from the hinges,,,,, that was most fun i promise you