Hi Everyone,

I was wondering if someone could tell me if the brake master cylinder from an S or SL Class (say an R129) can be used for a W124? Would it be a direct fit? Would there be any benefits to doing that? Would the calipers and assembly need to also be changed, etc...

I have a 1995 W124 and am about to order a new master cylinder and noticed that the heavier model master cylinders look pretty much the same except for an additional orifice that can be plugged up. I'm wondering if there might be any benefits to getting the larger bore master cylinder.

Thank you!