there is a hissing/air release noise when the car is in drive. brake: no noise on 2009 Volkswagen Passat

There is a hissing/air release sound when my car is in drive and when I brake the noise stops.

by in Stockton, CA on September 11, 2013
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1 answer 1 comment
ANSWER by , September 11, 2013
Have the brake booster checked out. Before it gets worse!!
COMMENT by , September 11, 2013
thank you very much. Is this normal or maybe a defect? thanks