Hopefully i can help..
To change the clutch assembly they have to separate the gearbox from the engine which in turn requires to remove/repositioning the gear control selectors/cables..to be able to manoeuvre the gearbox away to access to the clutch for replacement..sadly considering the cable has snapped or one of the two have snapped it would require replacement..as they come as set..I do hope this helps...
Hi..there thanks for you reply..
We have these cars over here in the UK too...well ever garage has its own methods for gearbox removal..they can either seperate the box away from the engine and give access to the clutch itself..not ideal as the space would be very tight..but never the less the cables would need to be either disconnected or manoeuvred in such a way they dont interfer with the gearbox removal...if they said they had to remove the gearbox out of the car..which most garages like to.then they would have 100% had to take the cable off to do that..the cables from the gearselector in the car are actually attached to the selector assembly on the gearbox..It really a case of finding out in what way they removed the gearbox..
Any gear controls cables ive seen break "quite alot of cars use these now" is usually down to corrosion on the cable end itself or the cable has become siezed within the cable sheath which in turn causing the gears to become stiff to get in and out and puts extra strain on the cable, or a manufacturer defect which is pretty rare to be honest / or a problem in the gearbox itself - the cables are a bit like clutch cable in a way.but there are 2 of them that lead to the gearbox...Its normally a case of having to inspect the cable itself and see what caused it to snapped..you may want to ask them that so you can see for yourself..when they break they sort of fray away at the ends before hand