clutch resevoir leaking?

[brcarey]

Hello all it has been a while since my last post I have run into an issue with my 95 e-34 w/m60 and five speed. I have noticed that when it is cold out side say 30deg or colder my clutch pedal goes all the way to the floor. and stays there until I pull it up with my foot. I check fluid level and it is low But I cannot find leak. Is this my master cyl for clutch or slave cyl. I do not see any fluid on slave or master but I am un able to maintain proper fluid level. do I need to bleed off clutch
PS: I can add a little fluid and it will work for a while I cannot find problem

[marti5]

I would say that your master may have an internal leak ,thats why you cant see anything.

[brcarey]

Originally Posted by marti5

I would say that your master may have an internal leak ,thats why you cant see anything.

where is the master cylinder? is it under the dash and how hard is it to change?