I'm working on the 1991 560SEL. Is the brake master cylinder on this car considered a "Stop bore master brake cylinder"?? If so, I've located a tool that may help in bleeding it......

It is called a

Cardone Master Cylinder Bench Bleeder Tools 10-5000MCB

and is available on several car parts web sites. Does anyone know if this particular tool could be useful in bleeding a master brake cylinder on a 1991 560SEL??

Also, check out ezbleeder.com this looks to be interesting as well......