Sprinter 3500 L5-2.7L DSL Turbo (2004)
Cabin Temperature Sensor / Switch: Description and Operation
IN-CAR TEMPERATURE SENSOR
In-Car Temperature Sensor
The in-car temperature sensor measures the actual air temperature within the passenger compartment. The in-car temperature sensor is located inside of
the A/C-heater control behind a vented panel and is not a separate serviceable component. The A/C-heater control must be replaced if there is a fault
relating to the in-car temperature sensor.
Air from the passenger compartment flows over the thermistor of the in-car temperature sensor. The thermistor changes resistance with air temperature.
The ATC A/C-heater control measures this resistance and calculates the temperature of the air. The A/C-heater control then makes adjustments to
maintain the selected passenger compartment temperature.
The in-car temperature sensor cannot be adjusted or repaired, and if faulty or damaged, the A/C-heater control must be replaced.
