89 300E 200K miles:
Driving to the mall today, stopped by the pharmacy and backing out I tapped the brakes and they seemed to pump up a bit. OK, I'm thinking that's how you adjust them and I hadn't done that before. The brakes acted totally normal until I was exiting the freeway and they nearly went to the floor. My stomach went to my throat. I pumped them a little and got pedal back. Same thing at the next light but I was going really slow and trying to stay way back from any cars. Thank goodness I was only 1 light from the store and I pulled it into the back of the parking lot so I could call AAA. It also pulled a little to the left when it did stop. The AAA guy said it could be a bubble but I am not driving that thing until they find the problem!

My husband's Dodge Ram diesel truck had brake failure with only 10K miles on it while we were hauling our horse trailer in Wrightwood a few years ago. We have a big gooseneck with living quarters so it carries alot of weight. We were on a winding dirt road going down into a ranch with the mountain on one side and a sheer drop-off on the other. Unfortuntely we hit our friends in front of us knocking their horses down in their trailer and smashing their trailer into their new Dodge truck and cabover camper. I have never forgotten the terror of rolling down that road and finally coming to a stop. It was the master cylinder on the truck but we had to fight Dodge corporate over it because their 'special master' said it was worn brake pads in the front. Our local Dodge dealer's brake guy finally got involved and Dodge had to admit it was the MC and paid for all the repairs to our truck and our friend's damage. They also replaced the whole braking system because I wasn't about to get in that truck again.