I’m at the point where I completely disregard any car’s outdoor temperature sensor. In hot days when the car’s been in the sun, they seem to all way overestimate the temperature compared to what the weather app says it is.
I get that the sun will heat up the car and since the thermometer sensor is on the car that heats up too. But what stops them adding some protection measure to the thermometer to avoid this, so that we can get accurate outdoor air temperature readings?
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The sensor has to be exposed to airflow when you drive, so it can quickly detect icing conditions to warn you, and quick reaction is very good if that sensor is used to optimize your air conditioning too.
Problem is, that this place exposed to airflow may be just under the black bumper in front of the car, next to the engine. Very good while moving. Very easy to heat up when still, both by sun heating the area and engine releasing heat to the area. Lack of airflow does the rest, helping the heat to accumulate.
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