View Single Post
      01-21-2013, 03:49 PM   #6

Drives: 2006 E90 325i
Join Date: Jun 2012
Location: Sweden

Posts: 51
iTrader: (0)

First try spraying some start gas in the area where the booster is and listen if your engine is reving up. Then you clearly have a vacuum leak, probably the plastic hose/pipe from the booster. It's very common and I don't see why BMW would be an exception.