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      08-18-2012, 11:37 AM   #2
Teemo Panda
*Bimmerpost Plasti Dip Guru*
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Drives: E53, E46-M3, E70, F25-X3
Join Date: Jun 2011
Location: New Jersey (NJ)

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2013 BMW X3  [5.66]
Quote:
Originally Posted by rmeir
a lot of times, when the car is in the garage and the ignition off, I will hear a sound that sounds a lot like a pneumatic door closing. Like your vents in hvac that open and close. But have no idea of what it is. Obviously the car is doing something on its own, but when I get back in everything is the same as i left it. Anyone else experience this so Im not crazy and then what could it be?
It's probably from the exhaust system, or from the suspension, or when you engage the handbrake. All of these are normal
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