rivergo1d

Well, they changed the slave cylinder, test drove it, parked up and the clutch pedal dropped to the floor permanently - not the gentle loss of resistance I experienced. They've had it up on the ramp and can see nothing wrong with the new fitting. So my engineering mind is wondering whether they pressure-bled it after fixing the slave and that pushed a dodgy master cylinder over the edge, or whether both cylinders were on the edge, with slight pressure loss in the slave, and the master then gave up the ghost when pushing through against a "fixed" full pressure slave cylinder.

The reservoir is stable, no drops. To me that is consistent with a minor failure where the seals are letting fluid past and should be covered under warranty. The system was bled thoroughly a while ago in an attempt to fix it I'm going to pay the bill under protest, changing the cheaper slave first, and pursue the warranty company once the issue is fixed by hardware replacement.

Thanks for your help Alasdair. This is actually an extended warranty claim for me but the warranty company are refusing it as there is no external sign of leakage. Strangely, lots of Skoda garages discussed taking the gearbox off to fix it, hence my initial question. So much for going to the experts! Apparently there is a Skoda "webinar" about this, dated 2024 which states "scala the clutch pedal sinks to the floor, light/hardly any resistance through out pedal travel" and recommends changing both master and slave cylinders. Does anyone have a reference number for the webinar, or know where I can get it?

So it's not as labour intensive to change both master and slave as it would be if changing one in a concentric system

Is the skoda scala slave cylinder concentric and located inside the gearbox for all models, or is it just the 1.5 engine which doesn't have it on the outside of hte gearbox? I'm seeing different reports about whether the gearbox needs to be removed to check or replace it on a 1.0 litre engine.