I realise this could be simple matter of a worn clutch, but I would like some advice - my Mazda 3 1.6 petrol manual (2006 55 plate) often lurches a bit when changing gear - the biting point of the clutch is very small, hence why I thought it might be a worn clutch. The car's done about 40k, mostly out-of-town/motorway driving (relatively low mileage due to working locally for 3 years).

A pool car (same model/engine, about a year older) at work has the same problem, though much worse, but it has done well over the 100k mark (no idea whether it's had a new clutch).

Mine has had the problem for a good 2-3 years, and looks to be slowly getting worse. Would a simple change of clutch resolve the issue? My car doesn't have any similar problems when in gear.

Thanks for any help provided.