Description
Interior temperature sensor for Citroën C5, C6, Peugeot 407, 607 and other Citroën or Peugeot models.
High-quality interior temperature and humidity sensor for Stellantis vehicles, referenced under part numbers 9647527180 and 6445VC. Designed to provide reliable cabin climate data to the automatic HVAC control, this sensor helps maintain comfortable temperatures, optimizes air conditioning cycles and supports efficient climate regulation. Ideal for professional mechanics and experienced DIYers who often search by OE number.
Technical information
- Manufacturer: Stellantis
- Model(s): Citroën C5 II; Citroën C6; Peugeot 407; Peugeot 607
- Product Codes: 9647527180, 6445VC
- Other Numbers: 9647527180 / 6445VC
Function And Application
The sensor measures cabin air temperature and relative humidity and transmits this information to the vehicle’s climate control module. The control unit uses these signals to regulate blower speed, mixing flaps and compressor engagement in automatic HVAC systems, ensuring stable cabin comfort and preventing unnecessary compressor cycles.
Replacement Procedure
- Disconnect the negative battery terminal before starting work to prevent electrical faults.
- Locate the sensor—typically mounted in the dashboard area near the center console or inside an HVAC air duct behind trim panels.
- Remove the required trim pieces carefully, avoiding damage to plastic clips and fasteners.
- Unplug the electrical connector and release the sensor from its retaining clip or screws.
- Install the new sensor, reconnect the electrical plug and refit trim. Reconnect the battery and verify HVAC operation and sensor readings.
Installation Recommendations
Handle the sensor and connector with care to avoid bending pins or cracking plastic housings. Inspect and clean connector contacts; ensure sealing surfaces are free of dirt to reduce risk of moisture ingress. After installation, clear any HVAC fault codes and, if available, confirm correct sensor output with a diagnostic tool. No special programming is generally required for this type of sensor on most models, but verify system operation after replacement.
Why The Part Most Commonly Fails
Common causes of failure include long-term exposure to humidity and dust, connector corrosion, wiring harness damage, and contamination from debris. Physical damage during dashboard disassembly can also impair the sensor. Service life varies with usage and environment; sensors installed in vehicles exposed to moist or dusty conditions tend to fail sooner.
Search terms: interior temperature sensor, cabin temperature sensor, humidity sensor, HVAC sensor, 9647527180, 6445VC, Citroën, Peugeot.
