Hi all. I have a problem with my 172s Clutch. Its been in twice and still not fixed. What happens is that when it is cold it works perfectly, but as it gets hotter the clutch becomes sticky and makes a squeaking noise. This does not go away until the car has cooled down again. It makes it very difficult to drive the car in traffic because you cannot release the clutch slowly! What can cause this? How can I fix it?