At the dealer ship talking to the tech and parts guy about the irksome braking problem inherent to the ML 320's, that of the amount of foot pedal travel to reach decent braking power. Previously I had changed out rotors, pads and brake hoses in my wife's '99 ML 320 only to find no improved results. Parts OEM from local dealer. I have learned that there is a new part no. superceding the original no. for the master cyl. and wondering if anyone can comment that this may be an improvment to the original design.