What's this little sucker?
01-29-2006, 09:08 AM
#11
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My Ride: 2008 M5 -- Exterior: Silverstone, Interior: Black. Fully Loaded. That just about sums it up! :-)
O.K. kev525:
I'm going to have to charge you for making me look at that dirty car!
-CoolTones
I'm going to have to charge you for making me look at that dirty car!
-CoolTones
01-29-2006, 09:25 AM
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My Ride: 2008 Porsche 911 Carrera S Convertible. Midnight Blue, 6 Speed.Retired - 2007 997 Carrera S, Midnight Blue, Grey leather, premium audioRetired - 2007 550i, Monaco Blue over Beige, Navigation, Logic 7, Cold Weather Pack, Comfort Access, Sport Package
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Originally Posted by Peter530i' post='231448' date='Jan 29 2006, 10:03 AM
do i realy have to do some search and find all old and huge threads for you to believe or what 
01-29-2006, 09:33 AM
#13
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This has to be one of the classic miscommunication threads of the forum.
It is not just a temperature sensor, it is an OUTSIDE temperature sensor. Hope that clears the air a bit.
It is not just a temperature sensor, it is an OUTSIDE temperature sensor.
Hope that clears the air a bit.
01-29-2006, 09:41 AM
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It seems a bit exposed for a temperature gauge and subject to wind chill
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My thoughts exactly!!!!!!!!!!
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My thoughts exactly!!!!!!!!!!
01-29-2006, 09:56 AM
#15
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[/quote]
do i realy have to do some search and find all old and huge threads for you to believe or what
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The reason I am sceptical is that 5 degrees fahrenheit in a 45 mph wind is equivalent to -23 degrees.
01-29-2006, 10:09 AM
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My Ride: '04 545iS 6 spd, bought new via eBay, 11/05; Blk/Gry, Cold, L7, PDC, BMW Rear seatcover for pets.
First "Bumwa" was a new 1971 2002. High performance 5s since 1987. Beamer motorcycles too, currently on an 07 BMW K1200 GT; also a Moto Guzzi 1000 SP III.
Originally Posted by Kev525' post='231426' date='Jan 29 2006, 12:29 PM
Anyone know what this little sucker hidden at the bottom of the radiator grill is? I suspect it's the outside air temperature sensor but would like confirmation. (I'm one of those guys who likes to know what things do).
Attachment 14853
Attachment 14854
And for those eagle eyed amoungst you - I know it needs a wash!
Attachment 14853
Attachment 14854
And for those eagle eyed amoungst you - I know it needs a wash!
Cheers,
Ray Hull
01-29-2006, 10:34 AM
#17
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Originally Posted by It' post='231446' date='Jan 29 2006, 01:01 PM
[quote name='Peter530i' post='231440' date='Jan 29 2006, 06:47 PM']
[quote name='It' post='231438' date='Jan 29 2006, 12:45 PM']
I seem to remember it being a sensor for the DSC
[quote name='It' post='231438' date='Jan 29 2006, 12:45 PM']
I seem to remember it being a sensor for the DSC
[/quote]
do i realy have to do some search and find all old and huge threads for you to believe or what
[/quote]
The reason I am sceptical is that 5 degrees fahrenheit in a 45 mph wind is equivalent to -23 degrees.
[/quote]
I think the system is smarter than that.
When its 20 degrees outside and I'm going 100mph, the car still says its 20 degrees outside.
01-29-2006, 11:02 AM
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The windchill is exactly what you need if you want to measure the outside temperature accurately. When there is bigger mass of airflow going past the sensor it's temperature approaches the temperature of the air faster. If there is no airflow at all cooling the sensor it absorbs heat emmitted from the engine and heat trasmitted through the infrared radiation of the sun, and shows too high temp.
You can forget all that winchill factor BS. It has nothing to do with the real temperature of the air. 20 deg air is always 20 deg air, even if it is blowing at 20 mph or 200mph. The so called windchill factor just describes how a human perceives temperatures with wind, but the real temperature of the air is always what it is, independent of the movement of the air.
It is simple physics. Elementary, my dear Watson...
You can forget all that winchill factor BS. It has nothing to do with the real temperature of the air. 20 deg air is always 20 deg air, even if it is blowing at 20 mph or 200mph. The so called windchill factor just describes how a human perceives temperatures with wind, but the real temperature of the air is always what it is, independent of the movement of the air.
It is simple physics. Elementary, my dear Watson...
01-29-2006, 11:06 AM
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My Ride: 2004 BMW 530I steptronic, Orient Blue, Dakota Black Leather, Finishers Aluminium with Wave Cutting interior, NAVIgation, Radio PROFESSIONAL, CD in-dash, Hi-Fi extended sound system, PDC system, Bi-Xenons lights with washers, cruise-control, heated seats, Extended AC, auto"shade" mirrors, auto lights sensors, rain/wiper sensor, M-tech leather multifunction steering wheel, side airbags rearseats, sliding armrest, smoker's package (I don't smoke!), velour floor mats, spare wheel and jack, 122 style rims winter setup, M135 style rims summer setup
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good one Heikki 
also it is good that people are sceptical and use their head but in a case where something is at it is what do you wanna do? if it is a temp gauge for sure why to argue then. it is still going to be a temp gauge
also it is good that people are sceptical and use their head but in a case where something is at it is what do you wanna do? if it is a temp gauge for sure why to argue then. it is still going to be a temp gauge
01-29-2006, 11:13 AM
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My Ride: X3 | 3.0 | 6-speed manual
Originally Posted by Heikki' post='231492' date='Jan 29 2006, 04:02 PM
You can forget all that winchill factor BS. It has nothing to do with the real temperature of the air. 20 deg air is always 20 deg air, even if it is blowing at 20 mph or 200mph. The so called windchill factor just describes how a human perceives temperatures with wind, but the real temperature of the air is always what it is, independent of the movement of the air.
It is simple physics. Elementary, my dear Watson...
It is simple physics. Elementary, my dear Watson...
Exactly.
The "wind chill temperature" relates to what exposed human skin perceives due to the combination of wind and temperature.
I think that weathermen have used this term for so long that people actually now believe that the temperature is lower when the wind blows! Airspeed would have no effect on either the actual temperature of the air or the operation of that temperature sensor.