Vauxhall Astra Clutch Slave Cylinder Problems

I have a 08 Plate Vauxhall Astra 1.8 Petrol Manual. Today on starting up i found trouble engaging any gear with the engine on. But I managed to drive 35 Miles to work and the gear box eased freely with the clutch as i drove to work and on c...

The mileage is 52000. The clutch works fine most of the time but occasionally (twice a week) the bite point drops to the floor and pedal doesn't come up. Lifting the pedal someone's sorts it. Normal position returns after about 30 minutes. ...