My girlfriend was driving our car home today (2006 Jetta TDI - Manual) when she was getting on the off ramp of the interstate and she went to disengage the clutch as she was slowing down. She couldn't get the car in gear, and the clutch pedal was stuck down on the floor. Once I drove to wear she was stranded I lifted the clutch pedal off the floor with my hand, and then pressed on the clutch and it went with normal pressure untill it got halfway down and then the pedal becomes pretty much rock solid. The clutch pedal will no longer disengage all the way and is really hard. Needless to say the car was towed home and now I am lost trying to figure out if i have a hydraulic problem such as a slave cylinder issue, or if something took a dump with the actual clutch/pressure plate. Any help would be absolutely awesome. Also if it is a clutch what is the best upgrade for these cars?