1996 Jetta GL clutch

I am looking at a 1996 Jetta GL and the guy says this

" NEEDS NEW CLUTCH, if you want to buy it and drive it away, you can but you'll need to go easy...no flooring it in high gears.

Is there any way to adjust that, I guess it works ok in the lower gears, says ya can't get it over 45 mph

cluches on that model are self adj. More than likely it needs a new cluch....I have a 95 with 114000 that needs one....Jetta-boy