Description
Interior Air Temperature Sensor For Citroën And Peugeot Vehicles. Evaporator Probe.
Product Overview
This interior air temperature sensor (evaporator probe) is an OEM-style replacement designed for Citroën and Peugeot climate control systems. The sensor monitors cabin/evaporator temperature and supplies the HVAC control unit with the data needed for accurate automatic climate regulation, anti‑freeze protection of the evaporator and comfortable cabin climate. Ideal For Professional Workshops And DIY Enthusiasts Looking For A Direct Fit By OE Code.
Key Benefits
- Direct Replacement By OE Code 6445TZ — Often Searched Under This Number.
- Ensures Stable Automatic Climate Control And Prevents Evaporator Freeze.
- Compact Design For Easy Installation In The HVAC Evaporator Housing Or Air Duct.
Compatibility And Application
Designed For Citroën And Peugeot Vehicles Using OE Code 6445TZ. Examples Of Compatible Vehicles Include Citroën C5 And Other Citroën/Peugeot Models Fitted With The Same OE Code. Always Match The Part Number 6445TZ To The Vehicle Specification For Exact Fitment.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: Interior Air Temperature Sensor / Evaporator Probe
- Product Codes: 6445TZ
- Other Numbers: NFP
Installation Recommendations
Recommended For Fitment By Experienced Technicians Or Competent DIY Mechanics. Typical Replacement Steps:
- Locate The Sensor In The HVAC Evaporator Housing Or Air Duct (Often Accessed From Under The Glovebox Or Dashboard).
- Disconnect The Battery Or Ensure Ignition Is Off To Avoid Short Circuits And Erroneous Fault Codes.
- Disconnect The Electrical Connector And Remove Any Retaining Clip Or Grommet Holding The Probe.
- Withdraw The Sensor Carefully, Replace With The New Unit, Ensure Proper Sealing Of Any O‑Ring Or Grommet And Reconnect The Electrical Plug.
- Reassemble Panels, Reconnect Battery, And Verify HVAC Function Using Vehicle Controls; Clear Any Related Fault Codes If Necessary.
Why The Part Fails Most Often
Common Failure Causes Include Moisture And Condensation Leading To Corrosion Or Short Circuits, Mechanical Damage During Previous Repairs, Degradation Of The Sensor Housing Or Grommet, And Connector Corrosion. Faulty Sensors Typically Cause Incorrect Cabin Temperature Regulation, Intermittent HVAC Operation Or Error Codes In The Climate Control Module.
Diagnostics And Practical Tips
- Sensor Type: Typically An NTC Thermistor — Resistance Decreases As Temperature Increases. Use A Multimeter To Check Resistance Versus Temperature If Needed.
- Check Connector Pins For Corrosion And Wiring Continuity Before Replacing The Sensor.
- After Replacement, Run The HVAC System Through Several Modes To Confirm Correct Response; Monitor For Rapid Changes That May Indicate Airflow Or Sensor Positioning Issues.
- There Is No Fixed Service Interval; Replace When Symptoms Appear Or When The Sensor Fails Electrical Checks.
Ordering Note
Search By OE Code 6445TZ To Find The Correct Unit Quickly. This Sensor Is A Practical Replacement For Workshops And Enthusiasts Seeking Reliable Climate Control Performance In Citroën And Peugeot Vehicles.







