Change W123 coupling hose

Hello friends of the old stars, I currently have a bit of problems with my clutch hydraulics. The first two three KMs it is relatively difficult to switch with, after that no more problems, so probably air in the system. Taker and encoder cylinders are not soooo old (about 3 years) so that I could imagine that it might also be on the clutch hose this time. Now I looked at the “Russen-EPC” and saw that there are apparently two different versions (see photo).Does anyone here know which type of hose has been installed in which cars? (I know I could get the information from Mercedes and then order there, but both versions cost 150€ each which I am not ready to pay for a hydraulic hose).The second question would be if someone changed the hose recently and could provide relevant information for installation and removal: Is it very fuzzy or is it possible? Do you have to pay attention to something special? e perform the repair in a self-help workshop, which is why it is always very practical to consider possible complications already in advance. Thank you in advance for your help! Best regards The scrap metal fanatic