Most issues are simple issues.
Do you know exactly what was fixed with the car when the owner took it to get fixed?
I've had mine 4 years, had some pretty simple problems - pump relay sooting up (£7 to replace)
And got a major problem at the moment as my actuator went (it had done nearly 100k miles which is longer than i expected).
My advise is to read up on exactly how the system works and how to perform maintenance checks. Recalibrating the system is required from time to time too aswell as clutch push-rod adjustment (as davealfa11 mentioned)
Only take it to a specialist!
I wouldnt swap mine for the world, its a facinating system
2002 156 Selespeed Sportwagon|Koni FSD Dampers|Eibach Pro Springs|Fully Powerflexed Front & Rear|Eibach Sports Stabiliser ARB's|Lightweight Flywheel|Lighweight Crank Pulley|Colombo & Bariani Cams|Ported by Peak Alfa|Custom Remap by Gus|Wiechers Aluminium Strut Brace|GTA Uprights & Brembo 330mm Conversion|276mm GTA Rear's|GTA Steering Rack
|Custom K&N Intake Pipe & Induction|Brand new Gearbox/Actuator|Quaife LSD|CF2 Decat Manifolds|Supersprint Centre Section|CSC Duplex Exhaust|GTA Interior