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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > X Series > X1 E84 (2011 - current)

X1 E84 (2011 - current)
The new to the US BMW X1 will arrive at BMW dealers in the fall of 2012 as a 2013 model year. Get your X1 28i with either sDrive (RWD) or xDrive (AWD) or get the US exclusive I6 N55 powered X1 35i dDrive.

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  #1  
Old 12-16-2012, 08:31 PM
Perlova Perlova is offline
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Location: Canada
 
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Mein Auto: X1 28i xDrive
Whirring Sound

Anyone know what the whirring sound is when you first open a door on the X1 after it's been sitting for a while?

At first I thought it was a power sear moving back, but that does not appear to be the case.
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  #2  
Old 12-17-2012, 06:56 PM
lovemygsp lovemygsp is offline
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Mein Auto: 2013 X1
I've noticed this too. I don't know if its a battery kicking in or what. I also noticed that once its parked after a few minutes you hear a clunk and the noise turns off. I'd love to know what it is?
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  #3  
Old 12-17-2012, 08:26 PM
nospam nospam is offline
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Mein Auto: X1 x28i; 128i; S2000
Don't know what it is but it happened on my E90 and E46 as well.
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Old 12-18-2012, 05:10 AM
voerman voerman is offline
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Quote:
Originally Posted by Perlova View Post
Anyone know what the whirring sound is when you first open a door on the X1 after it's been sitting for a while?

At first I thought it was a power sear moving back, but that does not appear to be the case.
Rumor has it that the sound you hear is the high pressure fuel pump starting up. Apparently it likes to prime the system prior to the engine starting.

Lou
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  #5  
Old 12-18-2012, 07:03 AM
nospam nospam is offline
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Mein Auto: X1 x28i; 128i; S2000
I know about the HPFP priming (this was added via a software update on E9x), but there seems to be another noise after the cars shut off.

Last edited by nospam; 12-18-2012 at 07:04 AM.
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  #6  
Old 12-18-2012, 09:36 AM
325es1988 325es1988 is offline
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Quote:
Originally Posted by nospam View Post
I know about the HPFP priming (this was added via a software update on E9x), but there seems to be another noise after the cars shut off.
Are you referring to the noise from the engine bay after shutting off? If so I believe its the turbo spooling down.

I also wonder about the noise when you first open the door after its been sitting...thought it was a release for the gas cover. Still curious.
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2013 sDrive 28i X1
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  #7  
Old 12-18-2012, 11:17 AM
Perlova Perlova is offline
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Quote:
Originally Posted by 325es1988 View Post
Are you referring to the noise from the engine bay after shutting off? If so I believe its the turbo spooling down.

I also wonder about the noise when you first open the door after its been sitting...thought it was a release for the gas cover. Still curious.
The gas cover door opens much quicker. This is about a 2-3 second long noise. And besides the gas cover unlocks with the door locks which are already opened.
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