There is a SEAT TPI notice out for Leon clutch pedals - something to do with the clutch pivot and bushing being either incorrectly fitted or of inferior quality. I don't know how many cars are affected, but my 63 plate 1.4FR definitely was.
I'd get a rough feeling right at the bottom of the pedal travel, and then a grating type feel as I released the pedal along with a loud creak/squeak/groan. Was always worse when it was below 11 degrees C outside. (On that point, try sticking the heaters on max and aim at the footwell, see if temperature makes it better).
It took all in all 5 days to repair. 2 days at in one
dealer (allegedly changed bits and pieces but made no difference) and then 3 days at another
dealer (Caffyns Tunbridge Wells). Caffyns sorted it but I gather it's a bit of a pig of a job - to get to the pedal you've got to remove the dash under the steering wheel, drivers knee airbag etc.
Unfortunately I don't have the TPI code number but there certainly is one out there, if the
problem is similar to mine anyway