IN JUNE OF 2012 I NOTICED THAT MY BRAKES MADE A HISSING SOUND AT RANDOM TIMES. I BROUGHT THE CAR INTO THE DEALER FOR A COMPLETE SERVICE AND BRAKE CHECK. I WAS TOLD THAT THE BREAKS WERE IN PERFECT CONDITION BUT THEY DID DO A BRAKE FLUSH. THE HISSING CONTINUED AT RANDOM TIME UNTIL THE WEEK OF 1/13/13 AT WHICH TIME THE HISSING WAS AT EVERY OCCASION THE BRAKES WERE ENGAGED. AND ON 1/15/13 THE BRAKES FAILED TO STOP THE VEHICLE. I BROUGHT THE CAR DIRECTLY INTO THE DEALERSHIP AND WAS INFORMED THAT IT WAS A LEAK IN THE BRAKE BOOSTER INTO THE MASTER CYLINDER. AFTER RESEARCHING THIS I HAVE FOUND THAT THIS IS A COMMON MALFUNCTION WITH THE CX9 AND I AM EXTREMELY FRUSTRATED. ALTHOUGH MAZDA ACKNOWLEDGED THE ISSUE ON EARLIER MODELS THEY ARE NOT ACKNOWLEDGING THE ISSUE ON THE LATER MODELS. THEY SHOULD HAVE TO STAND BEHIND THE PARTS AND VEHICLES THAT THEY MAKE. AND WHEN THEY KNOW THAT A CERTAIN PART OR SYSTEM HAS A HISTORY OF FAILING THEY SHOULD TAKE RESPONSIBILITY FOR THE ISSUE INSTEAD OF MAKING THEIR CUSTOMERS PAY FOR THEIR MISTAKES AND FAULTY PARTS. *TR
