Got mine booked in for the 2nd time for this fault next Monday. First time in they said the Tec that looked at the car agreed there was a fault and had done a bleed of the system and it seems to have cured it but 'see how it is'. It was no different on the way home! Spoke to an ex seat Tec yesterday and he said there's been a few hydraulic faults he's come across. One was a sticking master cylinder and the other was an inline valve (mounted on the n/s of the bulkhead) weeping fluid. He also said another cause of the pedal sticking someone had come across a faulty return spring on the pedal box. I'll see what happens Monday..............