BMW: 1986 325e clutch has lost pressure, engie, slave cylinder

Question
How exactly do you access and remove the master cylinder?

Answer
Micheal,
 The master cylinder is in the engie bay.  It's mounted to the firewall right above where your pedals would be.  You cant miss it.  However the master cylinder might not be at fault.  There is also another cylinder at the end of the line on the side of the transmission.  This is called the slave cylinder.  Its half and half, some times the master goes bad, and sometimes its the slave.  I would poke my head under and look for leaks.

 Good luck,
 Josh