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#61
06-04-2007, 08:37 AM
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2007 X3 Silver Gray, Gray Leather, Soprt, Premium, 19" 2MM wheels, Xenons, Self Installed Sirius 
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#62
07-06-2009, 08:15 AM
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Recently I've noticed that my muffler was louder than normal. Initially thought it might be something loose (~30k miles right now on my E83) and now realizing that its most likely this valve. Not sure but I think its bad or has gone bad. The vehicle is still under warranty and wondering if I can check the valve's operation or remove and clean it and re-install it. What are your collective thoughts?
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E83 - Aero PKG Mods installed: Homelink mirror. CIS-IBUS video module, AUX, Rr Dr Release, stock wheels, Remote start, CarPC (Atom) & mud flaps - NAV - MKIV - NA Map DVD - 2011 E46 - 18.5 wheels/tires (summer), 17 stock (winter), Homelink, NAV software upgrade, BMW video module, Radio to V53, AUX, USB IBUS interface,BMW alarm install, CarPC(Epia), remote starter, tank battery & angel eyes. NAV - MKIII - NA Map CD - High Version 2008.1 
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#63
07-06-2009, 01:47 PM
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Answering my own question. Checked for vacumn first and noticed that it did exist. Checked the hose and noticed a small crack in the hose above the flapper valve, enough for the flapper valve not to work correctly. I did not like the sound it was making. Cut about .5" of the hose (at the line of the crack) and refitted it. This corrected my problem. Its kind of difficult to work in the area of the flapper valve. I know there is a lot of heat in the area. Is this a common occurance for a vehicle with 30K miles on it?
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E83 - Aero PKG Mods installed: Homelink mirror. CIS-IBUS video module, AUX, Rr Dr Release, stock wheels, Remote start, CarPC (Atom) & mud flaps - NAV - MKIV - NA Map DVD - 2011 E46 - 18.5 wheels/tires (summer), 17 stock (winter), Homelink, NAV software upgrade, BMW video module, Radio to V53, AUX, USB IBUS interface,BMW alarm install, CarPC(Epia), remote starter, tank battery & angel eyes. NAV - MKIII - NA Map CD - High Version 2008.1
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#64
10-11-2009, 05:31 PM
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This is my X3, the exhaust is stock. Is louder to me than other X3 I've driven locally, don't know why
 .YouTube - E83 X3 3.0i Stock Exhaust Do you guy's X3 sound like that?
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#65
10-12-2009, 06:41 AM
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Its hard to tell with the backround noise but I really only noticed it when I would first start it. The easiest way to tell is to disconnect the power from the solenoid. If you don't hear a different then your solenoid isn't working or you have a hole or leak in the hose to the flapper valve. Personally I didn't like the sound it made when there was a leak in the vacumn hose.
__________________
E83 - Aero PKG Mods installed: Homelink mirror. CIS-IBUS video module, AUX, Rr Dr Release, stock wheels, Remote start, CarPC (Atom) & mud flaps - NAV - MKIV - NA Map DVD - 2011 E46 - 18.5 wheels/tires (summer), 17 stock (winter), Homelink, NAV software upgrade, BMW video module, Radio to V53, AUX, USB IBUS interface,BMW alarm install, CarPC(Epia), remote starter, tank battery & angel eyes. NAV - MKIII - NA Map CD - High Version 2008.1
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