A local garage recently changed the master clutch cylinder on my 2018 Skoda Karoq 1.0 Tsi. but the car was returned to me with a HARD CLUTCH PEDAL.

The clutch was light before the change and the master cylinder was replaced due to the clutch position sensor showing fault codes.

The slave cylinder was also changed a couple of weeks later with a Dot4 flush in the hope that it might improve the harshness of the clutch pedal.

Now I been left high & dry with the same problem. ANY IDEARS WOULD BE VERY MUCH APPRECIATED.

Try opening bleed nipple at slave end and depress clutch. If its still hard then it could be a fault in new master cylinder/pedal area. If its soft it could be the clutch mechanism/slave. Also the pressurised connection on master is push fit with a metal clip to secure. On my octavia it came with an o ring and top hat seal. You only use one. Top hat in my case. If both were used it may restrict the flow of clutch fluid causing stiff pedal or perhaps seal wasnt pushed home enough(it should click into place on pipe) or seal has come loose when fitting.(its quite easy to dislodge seal when connecting pipe from experience)

Alasdair