Thanks for replying to my intro. My X-Type has two problems with the brakes that both may be related to the ABS system. Occasionally, when I first start to move, the brake peddle is very hard and barely slows the car. If I pump the peddle a few times it returns to normal. That sounds like a master cylinder problem, except for the second problem I have with the brakes. Again, occasionally, while driving at freeway speeds, the steering wheel starts "shuddering". It gets worse and worse. I discovered that applying the brakes sharply will make this problem go away. Any guesses? Thanks in advance. Tracy