I just received a Power Bleeder for changing Brake Fluid. In the instructions is says to check service manual for the amount of pressure to use for your type of car. Can someone let me know what the Mini Service Manual says about this.
Thanks in advance

 

I use about 15psi.

 

Thank you very much.

 

I've read here to not go over 12lbs. Others have said 10lbs. I figure there is nothing wrong with using a low pressure, it just might take longer. Too high a pressure may cause damage to the brake system.

I plan on doing a fluid change this weekend (if the weather holds out) and will probably try with 8lbs just to be safe.

 

The reason for low pressure bleeding isn't damage to the brake system. They're designed to take far more PSI than your bleeding apparatus will produce.

The reason is safety for yourself, or whoever is sitting at the bleed screw. A high pressure shot of brake fluid can whip the bleed tube right out of the catch jar, and into someone's eyes, etc.

 

Brake fluid is nasty stuff. Don't get it even near paint unless you want it removed. Oh, and operating pressure for a properly working brake system is prolly between 1800-2500psi. Remember science where you can compress air but not a liquid? Just a quick FYI, my one teacher told me if you take 1 cubic inch of water and compress it 10%, the pressure inside will skyrocket to about 64,000 psi!

 

Well I successfully bled my brakes yesterday (first time). At 10 PSI, the fluid came out rather slowly. The only problem I ran into (not so much of one) was that I wanted to torque the bleeder screws to the correct setting (9-12 ft. lb.), but my 10mm socket wasn't deep enough, so I just had to guess.