[W126 Coupe] Brake Master Cylinder

[samsisic at comcast.net]

Hi all,
Just wondering if there is anything special about replacing the Brake Master Cylinder...
86K miles, 20 years... Time to replace? Not getting good pedal feel. Pedal will go to bottom with applied pressure. Could be air in system or bad Master Cylinder? There is no leaks in the system.
It looks like two bolts at the brake booster and two brake lines need to be disconnected, pull out with fluid reservoir still in place? Rags under assembly to catch any brake fluid...
Pour out old fluid from reservoir, install new Master Cylinder and reservoir in reverse and bleed system with new DOT4 fluid?
Any advice is appreciated.
Thank you,
Sam
Chicago
88' 560 SEC US
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