11-03-2011, 07:50 AM | #1 |
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Temp msg
This morning I received an alert in the spot where you get those triangle vehicle alert messages that said, \"Outside temp 37F\" in large lettering taking up the entire space beneath the regenerative braking graphic.
It beeped, triangle appeared with that msg and the disappeared within a few seconds. Anyone know what that was? Why would it appear and then vanish? The vehicle info screen has no record of the alert. Thanks
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11-03-2011, 07:54 AM | #3 |
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It just a warning that temp is getting to the point where frost or ice can occur. Probably your heated mirrors have been turned on too....
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11-03-2011, 08:25 AM | #5 |
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Good to know. I was nervous the computer was acting up,
Thanks
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11-03-2011, 09:12 AM | #6 |
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it means winter is almost here, time to crank the seat heaters.
my e91 did it as well - my VW Passat before that did it as well, but the temperature was 39 not 37 on that....
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11-03-2011, 12:24 PM | #8 |
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Yep...page 62 in the OM....
"External temperature warning If the display drops to 37 ℉/3 ℃, a signal sounds and a warning lamp lights up. There is the increased danger of ice. Ice on roads Even at temperatures above +37 ℉/+3 ℃, there can be a risk of ice on roads."
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11-03-2011, 03:28 PM | #9 |
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... was wondering when we'd see the first of these. Every year, just like clockwork!
At 37 degrees F, water freezes just enough to have a layer of liquid at the top (much more slippery than just solid ice). Also, with the condensation that occurs in fall, there is a real potential for "black ice". That is what the warning is for. Also, to remind you that you should be wearing your sweater.
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11-03-2011, 08:29 PM | #10 |
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Must be pretty standard on many cars these days. I'm driving a lowly Nissan Rogue rental on my job right now and it's giving the ice warning.
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11-04-2011, 05:35 AM | #12 | |
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11-04-2011, 06:00 AM | #13 | |
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11-04-2011, 09:49 AM | #15 | |
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11-04-2011, 10:11 AM | #16 |
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Air temp vs road temp? 3C air temp is generally thought of as being the point at which you should think about ice. Also you might be at 3C then drive down a dip where it's cooler.
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11-06-2011, 02:17 AM | #17 | |
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37 deg. F. (2.7 Deg. C.) seems to be the informally agreed upon value that every manufacturer uses. Our old, 1999 A4 chimed at 37 F. as does our 2005 Subaru Legacy and almost every new car that has an outside temp. readout. Finally, It's a warning. Most drivers would rather have a warning before something potentially dangerous was going to possibly happen, rather than later. |
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11-06-2011, 05:53 PM | #19 |
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How true....Philo of Byzantium, an ancient Greek engineer, made crude thermometers, or "thermoscopes" in the second century B.C. In 1592, Italian mathematician and astronomer Galileo invented the first “modern thermometer”. Both men were far ahead of their times fully anticipating the need for automobile ice warning systems. Neither one collects any royalties from the use of their inventions. Very sad.
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11-10-2011, 10:35 AM | #20 | |
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20 years or 2000, its just decimal points. |
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11-10-2011, 02:42 PM | #21 | |
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Funny thing about water is that it is not purely a liquid at 33 degrees and purely a solid at 32 degrees. Freezing is a process of crystalization and slowing of the molecules, which happens somewhat gradually. There isn't a "head molecule" with a thermometer watching for 32 and hollering "okay, everybody... STOP!" The most slippery ice is the kind that is "warm" and has a very thin layer of liquid water on top. Ask the manager of your local ice rink. 37 degrees is the point at which there is sufficient crystalization of the water to form a solid with a very thin liquid layer on top.
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11-10-2011, 02:49 PM | #22 |
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Just brilliant.....
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