Originally Posted by
Pop Tro
Wow 180,sound like your down to your last nerve.I haven't seen this mentioned but you said you changed the MC.Did you make sure the pushrod is just touching the mc bore.Different brands of mc's could have a different bore length. If you checked it then that's all I got.These xf guys are keeping brake fluid companies in business.My new brakes are getting better,firmer the more I drive it.Do the pads wear in and get harder? Weird.
I used the identical Mercedes MC.
There is or was at one time a gap between the pedal push rod and the MC push rod, this was to allow for the fluid to expand when warm. If there was no gap the brakes would be activated by the expanded fluid. I cannot see how that would happen in today’s cars. If the gap was too large I can see that more pedal stroke would be required, some systems have an adjustment to get the gap correct to allow make up fluid to enter the system from the reservoir and set the pedal travel.
I really know little about our brake systems inner workings, I hope I can learn more from those with more know how.