Product Overview

This interior temperature and humidity sensor is designed for Citroën and Peugeot models and helps the climate control accurately monitor cabin conditions. Ideal for professional workshops and DIY mechanics, the sensor restores proper automatic HVAC regulation when the original unit becomes faulty. It is commonly searched by OEM references, making this listing useful when replacing a defective cabin sensor.

Function And Location

The sensor measures cabin air temperature and relative humidity and provides data to the vehicle’s climate control module so it can adjust heating, ventilation and air conditioning (HVAC) performance. On Citroën and Peugeot vehicles it is typically installed behind the dashboard near the centre vents or close to the A/C control unit where it samples cabin air. Proper placement ensures accurate readings and efficient climate regulation.

Symptoms Of A Faulty Sensor

• Inaccurate cabin temperature readings or sudden changes in reported temperature.
• Automatic climate control not maintaining set temperature or oscillating between heating and cooling.
• Increased cabin condensation or dehumidification issues.
• Fault indication related to the climate system on the instrument cluster or HVAC unit (diagnostic trouble codes may be present).

Installation Recommendations

• Disconnect the battery before starting work to avoid electrical short circuits and to protect vehicle electronics.
• Carefully remove the necessary dashboard trim panels to access the sensor—avoid forcing clips to prevent breakage.
• Unplug the electrical connector, remove the old sensor and install the replacement in the correct orientation. Ensure the connector and housing are clean and dry before reassembly.
• Reassemble trim panels, reconnect the battery and allow the climate control to complete any self-calibration routines if applicable.
• After replacement, verify proper operation by setting the climate control to automatic mode and confirming steady temperature regulation.

Most Common Cause Of Failure

Cabin sensors usually fail due to moisture ingress, dirt or contamination, connector corrosion, or intermittent wiring faults. Physical damage from improper removal or impact behind the dash can also cause failure. Environmental exposure over many years accelerates degradation, leading to incorrect readings and HVAC performance issues.

Technical Information

• Manufacturer: Stellantis (Citroën / Peugeot)
• Model: Citroën C2, Citroën C3, Citroën C3 Pluriel, Citroën C5 II, Citroën C6, Citroën C8, Xsara, Xsara Picasso; Peugeot 307, Peugeot 407, Peugeot 607, Peugeot 807
• Product Codes: 9637937380, 6445HT
• Other Numbers: 52513D, NFP

Additional Notes For Professionals

This sensor is a direct-replacement component frequently cross-referenced by its OEM numbers. When diagnosing climate control faults, check connector integrity and wiring continuity before replacing the sensor to avoid unnecessary parts replacement. Use proper trim tools to prevent damage to dash panels and retention clips.

Product Overview

This multifunction sensor is designed for Citroën C8 and Peugeot 807 vehicles and is commonly used inside the HVAC/climate control system to provide accurate cabin environment data. The unit improves automatic climate regulation, supporting comfortable interior temperature control and reliable operation of the air conditioning system. Ideal for professional mechanics and experienced DIYers who service Stellantis vehicles.

Key Features And Benefits

• Direct-fit replacement for original equipment on applicable Citroën and Peugeot models.
• Improves responsiveness and stability of automatic climate control.
• Often searched and identified by part numbers 1489150080 and 6445QX—useful for quick lookup.
• Compact design for simple integration into existing sensor mounts and wiring harnesses.

Applications

Designed for Citroën C8 and Peugeot 807 models (commonly fitted on model years 2002–2014). Typically installed in the dashboard or inlets related to the HVAC system to measure cabin conditions used by the vehicle’s climate logic.

Installation

Replacement is straightforward for a trained technician or competent DIYer with basic tools. Typical steps:

• Disconnect the vehicle battery before starting work to avoid short circuits and control module issues.
• Remove the relevant dashboard trim or ventilation grille to access the sensor location (location varies by model and trim).
• Unplug the electrical connector and remove the sensor from its mounting (clip or screw, depending on version).
• Install the new sensor, secure the mounting, reconnect the harness and reassemble the trim.
• Reconnect the battery and verify proper operation of the climate control (automatic mode) and that there are no error codes related to the sensor circuit.

Installation Recommendations

• Use appropriate trim tools to avoid damage to dashboards and clips.
• Check connector terminals for corrosion before fitting; clean if necessary to ensure solid electrical contact.
• After installation, run the climate system through automatic cycles to confirm stable temperature regulation.

Why The Part Fails

Failures are typically caused by long-term exposure to moisture, contamination or dirt ingress, connector corrosion, thermal stress, or internal electronic component degradation. Mechanical damage during previous servicing or impact to the dash area can also affect sensor function. Symptoms of failure include incorrect cabin temperature readings, poor automatic climate control performance, or related HVAC fault codes.

Technical Information

• Manufacturer: Stellantis (Citroën/Peugeot)
• Model: Citroën C8; Peugeot 807
• Product Codes: 1489150080, 6445QX
• Other Numbers: NFP

Notes For Professionals

This sensor is frequently identified by its part numbers when ordering or searching in catalogs. Ensure correct part number and sensor variant before installation, as HVAC sensor housings and connectors can vary by trim or equipment level.

Order a reliable used sensor designed specifically for Citroën and Peugeot vehicles to maintain optimal climate control. This temperature and humidity sensor accurately monitors and regulates the interior environment, ensuring your heating and air conditioning systems function efficiently.

This sensor plays a critical role in maintaining comfort during every drive by precisely measuring cabin temperature and humidity. It is mainly suitable for Citroën C5 (C5 II), Citroën C6, Peugeot 407, and Peugeot 607 models. The sensor’s accuracy supports the vehicle’s HVAC system for optimal passenger comfort.

Technical Information:
Manufacturer: Citroën, Peugeot
Model: Citroën C5 (C5 II), Citroën C6, Peugeot 407, Peugeot 607
Product Codes: 9647527180, 9646573380, 6445VC
Additional Numbers: Also identified under OEM codes corresponding to different market variations.

The frequency of replacement depends on vehicle use and environmental conditions. As a vital component of the climate control system, it is recommended to periodically verify the sensor’s performance. Signs of malfunction, such as inaccurate temperature or humidity readings, require immediate replacement to maintain system efficiency.

Installation may require specialized technical expertise; therefore, professional fitting or service center installation is advised to ensure optimal sensor accuracy and reliability.

Summary:

• Enhances heating and air conditioning system performance.
• Designed for Citroën C5, C6 and Peugeot 407, 607 models.
• Proven quality and long-term reliability.
• Essential component for maintaining comfortable cabin temperature.
• Available as used but fully functional parts in stock.

Add this sensor to your cart now to secure a crucial part for your vehicle’s climate system. Our auto parts offer dependable quality at a great price.

Overview

High-quality interior temperature and humidity sensor designed for a range of Stellantis vehicles. The sensor supplies accurate cabin temperature (and, where fitted, relative humidity) data to the HVAC control unit to ensure correct climate regulation, improved comfort and efficient operation of the air-conditioning and heating system. Commonly searched under part numbers 9647527180 and 6445VC, this unit is frequently replaced by mechanics and DIY enthusiasts working on Citroën and Peugeot cars.

Function And Benefits

• Provides Cabin Temperature Measurement: Feeds real-time temperature data to the climate control module for precise temperature regulation.
• Monitors Relative Humidity (Where Applicable): Helps the HVAC system regulate dehumidification and avoid fogging of windows.
• Improves Comfort And Efficiency: Accurate sensing reduces unnecessary compressor duty cycles and prevents temperature oscillation.
• Direct Replacement For OEM Parts: Matches original fit and electrical characteristics for plug-and-play replacement in compatible models.

Compatibility And Fitment

Direct fit for a number of Citroën and Peugeot models from the same generation of climate systems. Typical applications include:

• Citroën C5 II
• Citroën C6
• Peugeot 407
• Peugeot 607

Always check the part number listed on the old sensor to confirm match with 9647527180 / 6445VC or alternative reference 9646573380.

Technical Information

• Manufacturer: Stellantis / Citroën / Peugeot
• Model: Citroën C5 II, Citroën C6, Peugeot 407, Peugeot 607
• Product Codes: 9647527180, 6445VC
• Additional Numbers: 9646573380

How To Replace

Replacement is straightforward for a trained technician or an experienced DIYer. Typical procedure:

• Disconnect The Battery: Always isolate the battery before starting work to avoid electrical damage.
• Remove Trim Panels: Access the sensor by removing the relevant dashboard or center-console trim. The sensor is usually mounted near the HVAC controls or behind a vent grille.
• Unplug Electrical Connector: Release the locking tab and carefully disconnect the wiring plug.
• Unclip The Sensor: Remove the sensor from its holder or housing and replace with the new unit.
• Reassemble And Test: Reconnect the connector, re-fit trim, reconnect the battery and verify HVAC operation and temperature readout.

Installation Recommendations

• Follow Manufacturer Procedures: Use proper trim tools to avoid damage and follow the vehicle manufacturer’s instructions where available.
• Inspect Wiring And Connector: Check for corroded pins, broken wires or water ingress and repair any damaged harness components before installing the new sensor.
• Verify HVAC Operation After Fitment: Confirm that the climate control reads temperature correctly and that automatic modes behave normally.
• Use Anti-Static Precautions: Handle the sensor carefully and avoid contaminating the sensing element with grease or dust.

Most Common Failure Causes

• Connector Corrosion Or Poor Contact Causing Intermittent Readings
• Water Ingress Or Moisture Damage Affecting The Sensing Element
• Mechanical Damage From Impact Or Improper Removal
• Age-Related Drift Or Failure Of The Sensor Element Affecting Accuracy
• Contamination By Dust, Grease Or Cleaners That Impair Sensor Response

Symptoms Of A Faulty Sensor

• Incorrect Cabin Temperature Readings Displayed
• HVAC System Cycling Excessively Or Failing To Reach Target Temperature
• Persistent Window Fogging Or Humidity Control Issues
• Unstable Automatic Climate Control Behavior

Why Choose This Part

This sensor is specified for relevant Citroën and Peugeot models and carries the common OEM references trusted by workshops. It delivers reliable temperature input to the climate system, helping restore correct automatic HVAC function and passenger comfort.

Note

If the vehicle shows symptoms of climate-control faults, inspect connectors and wiring before replacing the sensor—repairing electrical faults often avoids unnecessary part replacement.