Master cylinder

Hey all : Trying to replace my master cylinder clutch ( Freelander td4 2004 ) ... followed instructions in the Haynes manual ( please don’t laugh ) ... all was going well when I can to disconnecting the end of the master cylinder pipe that fits together with the end of the slave.Apparantly I should just prise them apart but it is not going anywhere and seems stuck.
Also the slave itself looks nothing like any of those I can purchase online or anything like the one shown in the manual There is definitely no Cclip to remove. ( hope I’m making sense here ) .... there is a bleed pipe so I’m wondering if I open the bleed a little it may release the pressure it could be under ? Allowing me to separate them ? ... my other question is if there is a bleed pipe why isn’t there a reservoir for fluid ? I am told it’s a sealed unit .. why allow it to be bled if you can’t replace the fluid.... maybe I’m just being stupid here can anyone shine a light

The 'quick release' coupler has to have the outer sleeve pushed forward to enable release.

And you can top up the fluid, as the master reservoir lid comes off.

Well finally finished the cylinder replacement and no matter the amount of bleeding i did to put back the pressure nothing at all would resolve it ... But I sat in the car with it running for 5 mins pumping the pedal and it just sorted itself out , now I have a low clutch bite which I hear is common on TD4s anyway ! Happy chappy , just the back door handle to fix now

Yes the design of some master cylinders provides insuffient fluid for a sensible bite point.

I have a thread somewhere on here for a simple mod to lengthen the pushrod by 6mm to solve the problem.

Also, bleed again after a few days helps.

I did a rite bodgit job of it tbh , couldn’t for love or money release the so called quick release coupler and so in my infinite wisdom I cut the pipe and pushed the join into a piece of rubber hydrolic hose , needless to say it worked for a few hours until the pressure blew it apart ha ha !! This time I’m going to use a piece of brass pipe so the fluid passes through it instead of creating a cavity between the ridiculously amateur joint