How to Replace Master Cylinder on Many Mercedes Models 1984 to 1991 

This video will show you how to replace the master cylinder on most Mercedes cars. They are all the same. This is the same procedure on most cars, any make or model.
This video also shows you how to bench bleed a master cylinder.
This is a 1990 420 SEL, 126 body style.
Make sure you use the correct brake fluid. It is stamped on the master cylinder cap. Example, this is a DOT 4.

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