Low clutch pedal - PK4-017 gearbox

[Eder]

Hi guys,
I would like to know if someone has had this clutch problem.
I have a Fluence GT that uses PK4-017 gearbox, very similar to the PK4-018 of Megane RS mk3.
This Saturday, the clutch pedal simply stayed low after I pressed it while driving the car out of the garage.
I had to pull the pedal back up and insist some times until it regained pressure and worked again.
Apparently is appears to be the pedal master cylinder, because I did'nt see any leaks...

 

[DaveL485]

Does the clutch hydraulic line run near anything hot? My 21 used to boil the fluid in the line, pumping the pedal would bring it back to life.

 

[Eder]

Does the clutch hydraulic line run near anything hot? My 21 used to boil the fluid in the line, pumping the pedal would bring it back to life.

Good point, I will check it