Ambient air Thermometer
Discussion
Just a silly thing, but it's bugging me!!! Where is the thermometer generally positioned in modern cars - you know, the one that shows the ambient air temperature and displays it to the instrument panel?
I guess it must be nowhere near the engine bay or exhaust, also away from any air currents - so where is it?
I guess it must be nowhere near the engine bay or exhaust, also away from any air currents - so where is it?
Fastpedeller said:
Just a silly thing, but it's bugging me!!! Where is the thermometer generally positioned in modern cars - you know, the one that shows the ambient air temperature and displays it to the instrument panel?
I guess it must be nowhere near the engine bay or exhaust, also away from any air currents - so where is it?
Why does it have to be away from air currents?I guess it must be nowhere near the engine bay or exhaust, also away from any air currents - so where is it?
DocArbathnot said:
Why does it have to be away from air currents?
Probably to prevent wind-chill effect, just try putting your hand out the window of a moving car (even on a hot day) to see what I mean.In my Nissan it's on front of the radiator near the bonnet catch. In this position it picks up heat from the radiator when the car is parked hot, and it has to be driven about two miles before it reads properly again.
In my BMW it's in a cavity ahead of the wheel-arch liner and behind the foglight and is protected by foam rubber (probably to prevent the heat-soak mentioned above).
In Renaults it's usually in the passenger-side wing mirror and the little sensor bulb can be seen on the bottom of the mirror, which seems to contradict the wind-chill explanation above.
Locknut said:
Probably to prevent wind-chill effect, just try putting your hand out the window of a moving car (even on a hot day) to see what I mean.
In my Nissan it's on front of the radiator near the bonnet catch. In this position it picks up heat from the radiator when the car is parked hot, and it has to be driven about two miles before it reads properly again.
In my BMW it's in a cavity ahead of the wheel-arch liner and behind the foglight and is protected by foam rubber (probably to prevent the heat-soak mentioned above).
In Renaults it's usually in the passenger-side wing mirror and the little sensor bulb can be seen on the bottom of the mirror, which seems to contradict the wind-chill explanation above.
Im pretty sure thermometers are not affected by windchill. In my Nissan it's on front of the radiator near the bonnet catch. In this position it picks up heat from the radiator when the car is parked hot, and it has to be driven about two miles before it reads properly again.
In my BMW it's in a cavity ahead of the wheel-arch liner and behind the foglight and is protected by foam rubber (probably to prevent the heat-soak mentioned above).
In Renaults it's usually in the passenger-side wing mirror and the little sensor bulb can be seen on the bottom of the mirror, which seems to contradict the wind-chill explanation above.
jeebus said:
Locknut said:
Probably to prevent wind-chill effect, just try putting your hand out the window of a moving car (even on a hot day) to see what I mean.
In my Nissan it's on front of the radiator near the bonnet catch. In this position it picks up heat from the radiator when the car is parked hot, and it has to be driven about two miles before it reads properly again.
In my BMW it's in a cavity ahead of the wheel-arch liner and behind the foglight and is protected by foam rubber (probably to prevent the heat-soak mentioned above).
In Renaults it's usually in the passenger-side wing mirror and the little sensor bulb can be seen on the bottom of the mirror, which seems to contradict the wind-chill explanation above.
Im pretty sure thermometers are not affected by windchill. In my Nissan it's on front of the radiator near the bonnet catch. In this position it picks up heat from the radiator when the car is parked hot, and it has to be driven about two miles before it reads properly again.
In my BMW it's in a cavity ahead of the wheel-arch liner and behind the foglight and is protected by foam rubber (probably to prevent the heat-soak mentioned above).
In Renaults it's usually in the passenger-side wing mirror and the little sensor bulb can be seen on the bottom of the mirror, which seems to contradict the wind-chill explanation above.
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