Humming from dash?
08-23-2005, 05:46 PM
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When i turn off the car, i hear a slight humming comming from the dash around where the cd player is. I thought it was the cd still spinning, but it still happens when there isn't a cd in there (or the nav cd). Is anyone else experiencing this? Thanks 
cheers,
Jack
cheers,
Jack
08-24-2005, 06:39 AM
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If you have confort seats, I bet that the noice you hear corresponds to the moving sides of the upper part of the seat, which support the body in the curves. This is part of the "easy-entry" function that allows to extract yourself (also for front passenger if detected) in an easier way. I think you could hear the same noice when fastening your seat belt if you do it BEFORE having started the engine but AFTER having switched the Key to the second position (just before the starter).
To confirm this, you may also set them to the maximum postion for one or two days so you can feel them retracting on your body or opening for you to go out so you can see if there is a correlation between the noice you hear and the motion.
Nota : Providing an indication as to from where comes a noice in a car is always difficult because there are lots of parameters that may alter you hearing perseption (isolation materials, pipes for the airco, seat position, number of people in the car... ...).
Good luck / Hope it helped
To confirm this, you may also set them to the maximum postion for one or two days so you can feel them retracting on your body or opening for you to go out so you can see if there is a correlation between the noice you hear and the motion.
Nota : Providing an indication as to from where comes a noice in a car is always difficult because there are lots of parameters that may alter you hearing perseption (isolation materials, pipes for the airco, seat position, number of people in the car... ...).
Good luck / Hope it helped
08-25-2005, 01:12 PM
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I've heard it too. Seems like it's coming from the DVD/NAV drive area. It seemed strange the first time I heard it which was within a short time after parking and turning off engine (all systems in key position 2 or higher off), but I heard it another time several hours after the car had been turned off, as I just happened to be reaching in to grab something. Maybe a cooling fan? 
08-25-2005, 02:32 PM
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Did you have your AC on when you shut down? It could be the freon pressure equlizing through the evaporator under the dash. To know for sure, just drive a bit with the AC off, and then shut it down and listen for the noise. If you don't hear anything, then that's probably it. AC systems can make all sorts of noise after you turn them off.
08-26-2005, 09:12 AM
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Hi, guys i reckon it is the air vents closing. There are motors to seal up the vents to stop the wind blowing through them and into the cabin. I know this because the flaps on mine had to be lubricated because they were squeeking when closing.
Hope this helps.
Hope this helps.
08-26-2005, 09:51 AM
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Originally Posted by ScottishBimmer' date='Aug 26 2005, 01:12 PM
Hi, guys i reckon it is the air vents closing. There are motors to seal up the vents to stop the wind blowing through them and into the cabin. I know this because the flaps on mine had to be lubricated because they were squeeking when closing.
Hope this helps.
Hope this helps.
[snapback]163682[/snapback]
08-26-2005, 09:58 AM
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Originally Posted by ScottishBimmer' date='Aug 26 2005, 10:12 AM
Hi, guys i reckon it is the air vents closing. There are motors to seal up the vents to stop the wind blowing through them and into the cabin. I know this because the flaps on mine had to be lubricated because they were squeeking when closing.
Hope this helps.
Hope this helps.
[snapback]163682[/snapback]
08-27-2005, 07:10 AM
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Originally Posted by gwf545' date='Aug 26 2005, 12:32 AM
Did you have your AC on when you shut down?? It could be the freon pressure equlizing through the evaporator under the dash.? To know for sure, just drive a bit with the AC off, and then shut it down and listen for the noise.? If you don't hear anything, then that's probably it.? AC systems can make all sorts of noise after you turn them off.
[snapback]163355[/snapback]
At least somebody tries to do something about in environment!
08-31-2005, 12:29 PM
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I hear the same. And yes even with the key off and after couple of hours - and here it comes - after couple of hours when RE-ENTRING the car, which means, OPENING the drivers doors.........which....... pre-STARTS the I-drive computer even while the screen is still of. So it is probably electronics and maybe a processor cooling fan or something there for the I-drive computer. Or the I-drive checking for CD. DVD slots even while empty
How about that?
How about that?