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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > HARD BRAKE PEDAL-330xi 2006



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      12-09-2011, 11:21 PM   #1
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Question HARD BRAKE PEDAL-330xi 2006

HELP,
I'm looking for some technical advise. Last sunday I was aproaching an intersection and getting ready to turn left when I stepped on the brakes and the pedal just went down to the floor without stoping! I let the pedal go and stepped on it again and it was rock hard and still wouldn't stop the car! I decided to continue going straight and finally came to a stop after using excess force to do so. Since then the pedal stayed rock hard.
I disconnected the vacuum pump hose going to the brake booster and discovered there was no vacuum at all. Does anyone know if this means I have a damaged vacuum pump? Did anyone experience this?
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      12-13-2011, 11:25 AM   #2
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Does anyone have any comments on this post?
Does anyone know if the brake booster vacuum pump always have suction when the engine is on?
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      12-13-2011, 02:57 PM   #3
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Sounds like there is definitely something is wrong with the vacuum assist system.
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