Brake Master Cylinder problems of the 2007 SAAB 9-3

2007 SAAB aero convertible - brake loss. Upon startup car intermittently loses its braking function. It actually first happened to the SAAB tech. They order new vacuum hoses and replaced them. That did not correct the problem. They have since resurfaced the rotors and flushed the brake system still having the problem. The dealer is now going to replace the master cylinder. Brake failure has been a low speeds and upon start up but almost hit the wall of my office building and almost hit when car was unable to stop while leaving parking lot. With all of the complaints on this board, I dont understand why no recall has been issued.

The brakes on my 2007 SAAB 9-3 aero sport combi failed while I was driving. In the first incident I was backing out of my driveway and attempted to apply the brake only to have no brake pressure at all. With the pedal pushed all the way to the floor the car failed to stop and I was forced to use the emergency brake and put the transmission in park to stop the vehicle. The dealership claimed the issue was a faulty brake booster check valve and repaired that part. I drove the car home from the dealership and at the first stop light after leaving the dealership I attempted to stop the car from 65 mph only to have no brake pressure again. I was forced to down shift and use the emergency brake to avoid hitting several cars. I drove the car very slowly back to the dealership and demanded they fix it. The car was in the shop two weeks for what they claim was a bad master cylinder. I suffered brake loss a third time and the dealer said there was nothing more they could do to help me so I parked the car in my driveway for 3 months while SAAB and my leasing company negotiated a buy back. I no longer have the vehicle. SAAB repurchased the car in December 2007.