My '93 2.0 LPT has just developed a problem with the clutch. In the morning the bite point is right on the floor, so that it crunches in and out of gear. It seems to get better with use and is ok for the rest of the day. I spoke to my garage on the phone and they thought perhaps it's a leaking slave or master cylinder, but the levels are on the max and haven't needed topping up in the 12 months I've had the car. No obvious under car leaks either. Any ideas??