My clutch was on the floor almost got to the point of being undriveable .I drianed the break fluid and after filling it up the clutch was back and feels firm ,car drives grt again .After driving almost 100 miles no fluid has gone down the master cyl is still full to the top .Question is should I still have the master cyl and slave replaced ...my car is a My03 w/ 105 k ...any info would be very helpful thx in advance .

 

Yes replace both of them. I bet if you look under the dash where the rod that attaches to the pedal meets the master cylinder there is evidence of fluid leakage. If fluid can get out then air can get in and cause a soft or dead pedal.