[RS3100]

Hi, I have a v40 D2 2.0 2015, the clutch sometimes gets halfway of its curse, so i just put my feet under the clutch and lift it. However this past week has been more and more frequentently should i try to fix it or just keep driving? Is it likely to completley fail and just be stranded on the road? I've figured out that it must be the slave cylinder but the costs for replacing this scare me.

How do you know that it's the slave cylinder? Is hydraulic fluid leaking from the bellhousing drain hole? It could be the slave cylinder, but it could also be the master cylinder or the pedal operating spring. Is the fluid level dropping in the brake reservoir? Can you see any issues with the pedal spring (broken or misaligned)?

Depending on the cause, it may eventually fail completely, but when is a how long is a piece of string question. If there are no issues with the pedal itself and no obvious loss of fluid, the first thing I would try is bleeding the clutch circuit. Although the clutch shares the same reservoir as the brake system, it's circuit does not get flushed and refilled with new fluid when the brake fluid is changed or bled, so if it's never been changed it's now around 10 years old.