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Where is the outdoor temperature sensor located on the Mercedes-Benz S400?

1 Answers

JuneFitz

07/29/25 8:38pm

This vehicle's outdoor temperature sensor is located on the left side of the front bumper's air intake grille. Function of the outdoor temperature sensor: This sensor is a component of the automatic air conditioning system, primarily responsible for providing the ECU with signals of the temperature outside the vehicle. The ECU compares this signal with the interior temperature signal to determine the cabin temperature, meeting the needs of the occupants. Composition of the outdoor temperature sensor: The sensor typically consists of three parts: a sensitive element, a conversion element, and a measurement circuit. Outdoor ambient temperature sensor: The system automatically protects when the outdoor temperature is too high or too low, and it is used for the outdoor unit's fan speed during cooling or heating.

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