brilliant - what a great reply, thanks for that! i'll get it serviced at vw stealer but if chains will cost that much, then eek, rethink time! my engine's quite tappety, i'll listen to the .wav and hope it's nothing similar! i bought bugs in jan this year, with 99k miles, now showing 111k. had quite a lot of work done after purchase but didn't touch the chains, vw stealer advised they were ok. cheers duncs