One problem related to brake master cylinder has been reported for the 2006 Ford Focus. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Ford Focus based on all problems reported for the 2006 Focus.
I have a 2006 Ford Focus zx4 5 speed. I have had to replace the clutch master cylinder 3 times within a years time. The problem is the part is plastic and over time it starts to leak due to the pressure it takes to change gears. I'm in rush hour traffic daily and having to stop and start. The master cylinder shares fluid from the brake reservoir. I have had low to non existent braking power. The master clutch has leaked inside my car and oil dripped onto the clutch and brake peddles causing foot slippage. The latest situations I was stuck in traffic,stop and go, and began having problems getting the car in gear. Next I was backing up slowly when I experienced no clutch peddle and the car began speeding up I could not get it out of gear I had to shutdown the engine to stop the car from pulling and get it out of gear. The car idles high when I come to a light or stop sign and eventually comes down. The gas peddle sticks in cooler weather. There are times when I'm in traffic I have to press really hard.