Power Assist Brake Vacuum Problems of SAAB 95

I own a 2000 SAAB 9-5 aero sedan. On June 14, 2007, I was driving this car when I experienced total loss of the braking system. This loss occurred completely without warning. The only way to stop the car was by engaging the emergency brake. Subsequent examination by a mechanic determined that the vacuum pump and brake booster had failed. I was fortunate in that the emergency brake engaged and that I did not drift out into the 5 lane highway that I was approaching. I was also fortunate in that I did not hit other cars or pedestrians in this incident. SAAB has recalled other models that have had similar brake problems and I believe that the 9-5 should be investigated.

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When parked on hill overnight with car pointed down hill, when engine is started and shift lever moved to drive and hand brake released, the foot brake is unable to prevent the car from rolling and hand brake must be used to stop vehicle. After a few minutes of driving, the foot brakes appear to function normally. This could be a serious problem for a woman unable to work hand brake or exert enough brake pedal effort to assist in stopping the car. SAAB expert mechanic says this is a common design problem and I should report it as a serious safety problem.

The break booster gave out on my '00 SAAB while driving causing the breaks to stop working.

1999 SAAB 9-5 has a faulty master cylinder, and vacuum booster which both had to be replaced at owners expense. In the past the consumer had to replace the water pump. Heater fan motor, thermostat. Leaky sunroof, battery, battery cables and numerous light bulbs.

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Brakes failed on 1999 SAAB 9-5. Problem was due to a vacuum failure in the brake system. Apparently the vacumm pumped oil into the brake booster thus causing the brakes to fail. Fuel storage tank has had a leak in the upper seam which emits gas fumes when the tank is filled. I understand this has been a persistent problem with the SAAB fuel tanks.

Vacuum brake booster developed an internal leak, causing momentary loss of braking action when first stepping on brake pedal during an emergency stop. During "normal" braking the brakes worked fine. Important!. . . The big danger here is that you don't know there is a problem with the booster till you have to make a quick stop where you need to jam on the brakes quickly!! you suddenly fine there is virtually no brakes for a second or two!! in normal braking they work fine.