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      08-20-2012, 08:21 AM   #4
dudley07726
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Drives: 2012 X3
Join Date: Mar 2012
Location: NJ

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2013 Mercedes Benz ...  [0.00]
2012 X3  [0.00]
Quote:
Originally Posted by n55x3 View Post
Ours makes all kinds of noises. When you open a door after it's been sitting for a while you can hear the high pressure fuel pump (HPFP) pressurizing in anticipation of a start. I can also hear the electronics booting up on occasion when it is really quiet. Both of these sounds are triggered by unlocking the doors or just opening a door.
Same for my X3. None of my other cars (Lexus) make that noise when I open the doors.
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