Description
Interior temperature sensor for CITROËN C5, C6, PEUGEOT 407, 607 and other Citroën or Peugeot models.
This interior/cabin temperature sensor (also referenced under part numbers 9647527180 and 6445VC) is a direct-fit replacement commonly used on several Citroën and Peugeot vehicles. It supplies the climate control unit with accurate cabin temperature data to ensure stable heating, ventilation and air conditioning performance. Suitable for professional workshops and DIY mechanics, the sensor helps restore correct temperature regulation when the factory unit has failed or drifted.
Typical benefits: precise cabin temperature readout, improved automatic climate control responsiveness, plug-and-play replacement with original-style connector and mounting. Frequently searched references include Citroën C5 interior temperature sensor, Peugeot 407 cabin sensor 6445VC and part number 9647527180.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: Citroën C5 II, Citroën C6, Peugeot 407, Peugeot 607 and other compatible models
- Product Codes: 9647527180, 6445VC
- Other Numbers: 9646573380
Installation Recommendations
Work Method: Park the vehicle on a level surface, switch off the ignition and disconnect the negative battery terminal before beginning electrical work. The sensor is usually mounted in the HVAC housing or ducting behind the dashboard, commonly accessible after removing the glovebox or center console trim on the passenger side. To replace: remove the trim panels to reach the sensor, unplug the electrical connector, release the retaining clip or screws, remove the old sensor and fit the new sensor in the same orientation. Reconnect the electrical plug, reassemble trim panels and reconnect the battery. After installation, run the climate control through a few cycles and verify the temperature response and that the HVAC system regulates to the setpoint. If the vehicle has a climate control self-test or adaptation procedure, follow manufacturer instructions to complete the reset.
Symptoms Indicating Replacement Is Needed
Common signs of a failing cabin temperature sensor include incorrect interior temperature readings on the climate control display, frequent and erratic switching of heating/air conditioning, reduced automatic climate control performance and inability to hold the selected temperature. These faults often show up as the system running too cold or too hot despite correct settings.
Why The Part Most Commonly Fails
Typical causes of failure are long-term exposure to humidity and condensation inside the HVAC housing, contamination by dust or debris, corrosion of electrical contacts, broken wiring or connector damage and gradual sensor drift with age. Thermal cycling and vibration over many years can also degrade sensor accuracy. Regular inspection of connectors and ensuring vents are clean helps prolong service life.
Compatibility Note: The part is commonly cross-referenced under the codes listed above. Fitment may vary by year and equipment level—check the vehicle’s part number listings for final confirmation before ordering.
