1999 e430 brake pedal travel

[sdhir]

Last week I replaced the front brake pads on my 1999 e430 with 29,000 miles and I was hoping the brake pedal travel would reduce considerably but it did not. So, as per the e-advice after posting a message on this board, I got Midas (chose not to do it myself) to flush the brakes and install new DOT4 and I was sure that the brakes would now apply as soon as I would press the pedal but alas ------. I still have to press the pedal almost down to the floor before the brakes begin to apply.
I wonder what's wrong!
Is it the master cylinder or some other hydraulic problem?
Any comments or advice will be most appreciated.
Sandy