Mine has done 33,000 on a 57 plate. A couple of weeks ago I started to notice a grinding into $th gear, took it to Renault and its the 4th gear synchro gone, took it to some other garages and all the same answer, Renault will put 50% towards it as a known fault but original prices are £1450 to repair it or £2180 for a new gearbox (all excluding VAT too). Took my argument up with Renault UK who eventually agreed that if I replace the gearbox they'll put about 85% towards it, I cant get out of paying the VAT on it though so its going in Wednesday for £770.
Apparently one of the technicians has a 200 and his 2nd gear synchro went a few months ago after 9,000 miles, annoying!!