I had the same
problem and followed the
guide which was excellent and saved me having to pay somebody. mate had a clip, other mate has a welder so it worked out i didnt spend a penny. Was a nightmare of a job though what with losing my temper trying to fiddle about the peddles and now havin a bust back and neck but its all working 100% now.
Not mentioned in this thread i dont think but when fitting the clip , put the clip onto the wee rod and ball end and then put it into the pedal, as it wont go in afterwards all that easily.
Another thing i done that messed up was when weldin a bit of weld went through the gap and prevented the clip going in but was able to chisel it out.
Mechanic i know keeps clips and pedals in his tool box as he says it only a matter of time before he will have another one needin fixed.
When i phoned the local Seat dealer and got the Seat parts desk the guy that answered the phone said he cudnt find the clip i was talking about and that he didnt know much about Seats.. Err why the feck you on the Seat parts desk, his solution was to tell me to ring another branch as they "might" know