Description
Product Overview
The Outdoor Temperature Sensor Citroën Peugeot 6445F9 supplies reliable external air temperature data to the vehicle’s HVAC and engine control systems. As an OEM-fit replacement for many PSA models, this sensor helps the climate control unit regulate cabin comfort and supports systems that depend on ambient temperature input.
Key Features
- OEM Part Number: 6445F9 (also referenced as 6445.F9)
- Direct-fit replacement for original PSA sensors
- Durable design for exterior mounting exposure and weather resistance
- Plug-and-play electrical connector for straightforward installation
Compatibility
Fits Citroën models: C2, C3, C4, C5 (I & II), C6, C8, Berlingo, Xsara Picasso. Fits Peugeot models: 206, 207, 307, 407, 807, Partner and other PSA vehicles using part number 6445F9.
Function And Common Failure Modes
The sensor measures outside air temperature and transmits the signal to the HVAC and engine control modules. Typical failure causes include corrosion or oxidation of electrical contacts, water ingress, connector or wiring damage, and gradual sensor element drift after prolonged service life. Symptoms of failure are incorrect external temperature readings, reduced HVAC performance, or fault codes related to ambient temperature input.
Replacement And Installation Tips
Replacement is straightforward for experienced technicians and competent DIYers when following the vehicle service manual. Typical procedure:
- Locate the sensor—commonly mounted behind a front grille, near the bumper, or close to a-pillars/vent openings depending on model.
- Disconnect the battery if recommended by the vehicle manufacturer.
- Unplug the electrical connector and remove any retaining clips or screws.
- Install the new sensor, secure retainers, and reconnect the connector. Ensure seals and grommets are correctly seated to prevent moisture ingress.
- Clear related fault codes and verify correct temperature display and HVAC operation.
If the wiring harness or connector shows damage, repair or replace the affected parts to avoid repeat failures. Always consult the specific vehicle repair manual for exact location, removal steps, and torque specifications.
Service Life
Service life varies with environmental exposure; many sensors remain functional for 8–15 years. Regular inspection during routine maintenance helps detect early issues—watch for intermittent readings or dashboard warnings that indicate a failing sensor.
Technical information
- Manufacturer: PSA Citroën / Peugeot
- Model: Citroën C2, C3, C4, C5 I, C5 II, C6, C8, Berlingo, Xsara Picasso; Peugeot 206, 207, 307, 407, 807, Partner
- Product Codes: 6445F9
- Other Numbers: 6445.F9
