The tank containing hydraulic fluid is connected to the fluid reservoir on your vehicle and pressurized with air from a hand pump (our precision pressure gauge ensures that the hydraulic system is not damaged due to excessive pressure). When one of the bleed valves on the vehicle is opened, old hydraulic fluid is expelled as new fluid from the tank is forced into the system.
This is bleeder is the basic unit with the 'fixed' plastic cap. If you want a 'swivel' aluminum cap, which makes it easier to screw the cap onto the reservoir, see MP0109 - recommended for those that bleed brakes more often than once every two years.
Bleeding has never been easier. There's no need for a helper to constantly pump the pedal while you open and close the bleed valves. And the 2 liter tank prevents the need for constant refilling of the fluid reservoir, thereby avoiding corrosive spills.
Pressure bleeding provides the best results, even on the most difficult hydraulic systems (including most cars with ABS brakes) The POWER BLEEDER'sTM heavy duty tank holds up to 2 quarts of fluid, enough to fully flush and clean the hydraulic system without the need to refill the tank. Our precision pressure gauge prevents over pressurization and our custom machined adapter securely attaches to the fluid reservoir for the safest and most effective operation. The hand-operated pump is built in-no other pressure source (air compressor, spare tire) is needed. Fast, easy and reliable one-person operation. Works on hydraulic clutch systems, too.
R55 / R56 MCS Clutch Bleeding Instructions
(passing along my my notes. hope they help)