I think I'll give these a miss. It hardly ever snows here sufficiently badly to warrant chains anyway. I'm going to give them to a friend who has a 1981 500SL in Zurich: they'll fit his tyres and his need is undoubtedly greater than mine.

John, part number is B 6 758 0258.

Thanks for your help, everyone.

__________________
JJ Rodger
2013 G350 Bluetec
1999 SL 500
1993 E300 diesel T
1990 190