Description
Evaporator Temperature Sensor for Stellantis vehicles
Product Overview
The Evaporator Temperature Sensor 6445KP is an OEM-style replacement sensor for Citroën and Peugeot HVAC systems. It measures the temperature of the evaporator core and supplies that information to the vehicle’s climate control system to prevent evaporator icing, optimise compressor cycling and maintain stable cabin comfort. This part is often sought by its product code 6445KP and is suitable for a range of Stellantis passenger and light commercial vehicles.
Applications
- Citroën Berlingo B9 (Berlingo III)
- Citroën Berlingo K9
- Citroën C‑Elysée
- Citroën C4 Picasso
- Citroën C8
- Opel Combo E K9
- Peugeot 301
- Peugeot 807
- Peugeot Partner III / Partner Tepee
- Peugeot Rifter
Function And Benefits
The evaporator temperature sensor monitors the temperature of the HVAC evaporator core. Accurate readings allow the climate control module to:
- Prevent evaporator freezing by adjusting compressor engagement or expansion valve behaviour;
- Maintain steady cabin temperature and improve passenger comfort;
- Reduce unnecessary compressor cycling, which helps extend the life of HVAC components.
Replacement Procedure (General Guide)
Replacement typically requires access behind the glovebox or under the dash to the HVAC evaporator housing. Typical steps followed by experienced mechanics or competent DIYers:
- Park the vehicle on a level surface and ensure ignition is off.
- Remove the glovebox or lower dashboard panels to reach the evaporator housing (vehicle‑specific fasteners and clips apply).
- Locate the sensor clipped or screwed into the evaporator housing; disconnect the electrical connector carefully.
- Release the retaining clip or fastener and remove the sensor from the housing.
- Fit the new sensor in the same orientation, secure the clip/fastener and reconnect the electrical plug.
- Reassemble trim panels and verify correct operation of the climate control system with the engine running and A/C active.
Note: Some models require partial dash disassembly; follow the vehicle manufacturer procedures and use appropriate tools to avoid damaging HVAC fins or connectors.
Installation Recommendations
- Ensure Connector Integrity: Check the wiring harness connector for corrosion, bent pins or water ingress and repair if necessary before installing the new sensor.
- Handle With Care: Avoid touching the sensor tip with sharp tools and do not deform the sensor body during installation.
- Use Correct Orientation: Install the sensor in the exact position and orientation of the original to ensure accurate readings.
- System Check: After replacement, run the A/C system through several modes and observe compressor engagement and cabin temperature to confirm correct operation.
- Seal Integrity: Ensure all HVAC housing seals and insulation are refitted to prevent moisture intrusion that can damage the sensor.
Most Common Failure Cause
Evaporator temperature sensors typically fail due to moisture ingress, corrosion of the connector or wiring, mechanical damage during dashboard removal/installation, or contamination from debris inside the HVAC system. Symptoms of a faulty sensor include irregular compressor cycling, poor cooling performance, inaccurate cabin temperature control and diagnostic trouble codes related to the HVAC temperature sensor.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot OEM)
- Model(s): Citroën Berlingo B9, Citroën Berlingo K9, Citroën C‑Elysée, Citroën C4 Picasso, Citroën C8, Opel Combo E K9, Peugeot 301, Peugeot 807, Peugeot Partner III, Peugeot Partner Tepee, Peugeot Rifter
- Product Codes: 6445KP
- Other Numbers: 6445.KP
Why Buy This Part
If you are a workshop technician or a DIY enthusiast maintaining Citroën or Peugeot vehicles, replacing a failing evaporator temperature sensor with a correct‑fit unit marked 6445KP restores proper HVAC control and prevents evaporator freeze conditions. The part number searchability makes it easy to locate the correct item quickly during diagnosis and repair.
