I am working on my Sisters 1999 300M, that my Mother purchased in 2001 with 34000 miles. The car has just turned 120,000 miles and I just did a Timing belt, tensioner, water pump, and dropped the trans pan and installed a new filter. When I drove the car for the first time since 2010 it seemed like the pedal went way to far down. At a stop light, I could not get my left foot under the pedal and if I pressed down even more it would go completely to the floor. So I bleed the brakes at all four wheels and it made no difference. At this point I decided to replace the master cylinder. I purchased a A1 Cardone new master cylinder complete with reservoir at Advance Auto Parts. The master cylinder came with a bench bleed kit and that was used to bleed the master cylinder before installing on the car. The original master cylinder was rusted onto the power brake booster as it had been leaking out the rear and was stuck on there pretty good. Once the new brake booster was installed, I bleed the two brake lines at the master cylinder by cracking them open then depressing the brake pedal to the floor then tightening the lines. I did this about three times to get the air out of the lines. Then I bleed the brakes at all four wheels. I still seem to think the pedal is too low and sort of spongy. Anybody have any advice on bleeding the 300M brakes? Can you get your left foot under the brake pedal at a stoplight? Is this normal?