Could you quote me for a pair of rear springs for 2002 S3 bam. Is it advisable to change the top mounts at the same time. The top of the one spring looks like there's perished rubber hanging out. The one spring has 3 silver paint dots,can't see anything on the other.Cheers Chassis no-WAUZZZ8L121014466 P.s are these engine prone to timing belt tensioners failing? heard a mechanical whine when loading the engine up in high gears,sounded similar to a previous problem I had on my leon tdi fr.