Air-vent screeching noise - MINI Cooper Forum
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post #1 of 8 (permalink) Old Nov 25th, 2008, 09:19 PM Thread Starter
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United-Kingdom Air-vent screeching noise

My poor Mini Cooper D (07) is crying!
When the car reaches 70mph a small ‘screeching’ sound can be heard coming from somewhere near the top of the dashboard – I think it is coming from the air-venting system. At 70mph this is only a small noise (not really enough to be able to diagnose the problem) and then it stops until the car reaches 83mph at which point the noise turns into a loud constant screeching and gets louder the faster the car goes. At 90mph the noise is very loud. The noise only occurs under certain driving conditions – the car has to be on an open piece of road (ie, no tree screening or banking to the sides of the road), it has to be reasonably windy and I think the wind has to be hitting the car on the left hand side for the noise to happen. The windier the conditions, the louder the noise gets. I am sure that it is some problem with the air-venting system. The screeching is sometimes so bad that I can’t even hear the radio over it! It is extremely stressful on a long journey.
The trouble is the dealership won't drive it over 70mph and I have tried to demo the noise to them, but of course it wouldn't do it when I wanted it to! They have had a look for anything obvious, but couldn't find anything.
Has anyone had anything similar?

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post #2 of 8 (permalink) Old Nov 26th, 2008, 03:10 AM
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mine does the same. i think its the windscreen seal,not had a chance to book it in at the dealers yet,but will keep you posted


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post #3 of 8 (permalink) Old Nov 26th, 2008, 08:29 PM
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Sounds like what Aston suggested.

...but it sounds like if you didn't break the speed limit, you'd be fine!

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post #4 of 8 (permalink) Old Nov 27th, 2008, 08:25 AM Thread Starter
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Have just found another thread suggesting it is the window seal, so will get that looked at when I take the car in for service - thanks for the replies!
PS - yes, it's very good at keeping me legal!

Last edited by AnnaB; Nov 27th, 2008 at 08:26 AM. Reason: To add text
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post #5 of 8 (permalink) Old Nov 27th, 2008, 12:35 PM
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It would be annoying on a track though wouldn't it!!
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post #6 of 8 (permalink) Old Nov 27th, 2008, 01:56 PM
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It would be annoying on a track though wouldn't it!!
it sure is

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post #7 of 8 (permalink) Old Nov 30th, 2008, 12:22 PM
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Hi AnnaB

I had a similar problem on my previous Cooper D when doing 75 or more. Started off as a whistle then the faster I went it turned into a loud screech.
After popping the bonnet up I noticed that the air intake pipe had come slightly loose, so pushed it back in and the problem went away. May be worth a try?
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post #8 of 8 (permalink) Old Dec 1st, 2008, 07:32 AM
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I had a screeching noise on my CooperD Clubman this morning, coming from the bottom of the windscreen/behind the dash when the car was on over-run or at idle.
Also I noticed condensation coming from my exhaust after 10 miles/20mins of driving. I know it is cold this morning, but usualy the engine has warmed up by then, I must learn to drive harder!
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