what needs to be fixed and what"s the cost?
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2002 BMW 330i
Question: my bmw 2002 330i has a hissing sound when pressing the brakes and when it's idle
Answer #1goodguy September 21, 2012, 18:00Master
sounds like you have a vacuum leak or a brake booster is your pedal hard when you brake?
Replykuryakin, October 13, 2012, 18:34Rookie
Answer #2michiganchuck September 21, 2012, 23:11Rookie
Brake booster Dont know the cost
Replykuryakin, October 13, 2012, 18:35Rookie