Description
Heater and Air Conditioning Control BEHR for Peugeot 407. Version HXN – Black Pearl.
Direct-fit BEHR climate control unit designed for Peugeot 407 owners and professional garages. This control panel manages heating, ventilation and air conditioning functions, offering precise regulation of cabin temperature, fan speed and air distribution. Ideal for mechanics and experienced DIYers who search by part number (e.g. 96844741XN, 6452J8) when sourcing replacement HVAC controls.
Technical Information
- Manufacturer: BEHR
- Model: Peugeot 407
- Product Codes: 96844741XN, 6452J8
- Other Numbers: 6452R5
Function And Benefits
This unit controls temperature selection, blower motor speed, and distribution flaps, and interfaces with the vehicle’s HVAC actuators and temperature sensors. Replacing a faulty control restores responsive climate control, prevents incorrect air distribution and avoids continual blower operation or non-functioning AC modes. The Black Pearl finish (HXN) provides an OEM look that matches the original interior trim.
Fitment And Compatibility
Intended for Peugeot 407 models that use the listed BEHR control part numbers. When sourcing, customers commonly search by the OEM reference codes shown above. Installation is typically a direct replacement where the connectors and mounting points match the original unit.
Installation Recommendations
Disconnect the vehicle battery before starting work to prevent electrical damage. Remove the center console trim panels to access the HVAC control module—retain all clips and screws. Unplug electrical connectors carefully and note actuator wiring positions. Fit the replacement unit in the reverse order, ensuring secure connector seating and correct orientation. After installation, check all HVAC functions: temperature change, fan speed stages, air-mix doors and AC engage/disengage. If available, clear any stored HVAC fault codes via a diagnostic tool to ensure proper calibration.
Common Failure Reasons
Control units typically fail due to worn or failed rotary potentiometers and switches, internal solder joint fatigue from temperature cycling, moisture ingress causing corroded contacts, or electronic component degradation over time. Symptoms include intermittent operation, unresponsive knobs/buttons, incorrect fan speeds, or loss of certain air distribution modes. Regular exposure to cabin humidity and repeated thermal cycles accelerates wear.
For workshops and experienced DIYers, replacing the control unit with the correct BEHR part number restores reliable HVAC operation and avoids downstream issues with actuators and sensors caused by prolonged use of a faulty controller.
