Brake Master Cylinder problems of the 2003 Honda Odyssey

The contact owns a 2003 Honda Odyssey. The contact stated while driving approximately 30 mph, she applied the brakes and the brake pedal depressed to the floor. The vehicle continued to move until rolling to a stop. The contact noticed premature wear of the brakes and stated that the brakes had been replaced numerous times in the past. An authorized dealer was not made aware of the failure. The vehicle was taken to a private mechanic where the contact was advised to replace the master cylinder. The vehicle was repaired. Approximately six months later, the failure recurred and the contact was again advised to replace the master cylinder. The failure mileage was 85,000 and the current mileage was 114,000. The VIN was unavailable.

When the brakes were applied the pedal would descend to the floor with poor braking response. The probable cause of the problem was isolated to having the (abs) modulator, the master cylinder and the brake booster replaced. The consumer was concerned of the extent of parts replaced with such low mileage. Please provide details.