Description
Overview
The BEHR Heater Servo Motor is a direct-fit HVAC actuator for PSA Group vehicles. It controls the position of blend and recirculation flaps to regulate cabin temperature precisely. Frequently searched under the OE references 210665693F and 6447AP, this actuator is suitable for both workshop professionals and experienced DIYers looking to restore reliable climate control.
Key Benefits
- Direct replacement compatible with original PSA equipment
- Accurate flap positioning for consistent heating and ventilation
- OE-style connector and mounting for straightforward installation
- Suitable for garages and self-repair enthusiasts who search by part number
Function And Common Symptoms
The servo motor drives HVAC internal flaps that blend hot and cold air or switch air recirculation. When the actuator fails, symptoms include incorrect temperature delivery, stuck or limited airflow positions, clicking noises from the dashboard, or an error code on some vehicles. Diagnosis typically involves listening for actuator noise and verifying flap movement while changing climate settings.
Fitment And Replacement
Compatible Models (examples): Peugeot 406, Peugeot 607, Citroën C5 I, Citroën Xsara. Fitment should always be confirmed by part number and vehicle VIN. Typical replacement steps (general guidance): disconnect the vehicle battery; remove the glovebox or center console panels as required to access the HVAC housing; locate and unplug the electrical connector; remove the mounting screws holding the actuator; replace with the new unit and verify proper flap movement before reassembling. Basic tools: Phillips/Torx drivers, trim tools and a small socket set.
Failure Modes And Expected Lifespan
Actuators most often fail due to worn plastic gear teeth, motor wear, electrical connector corrosion, or moisture ingress. Lifespan depends on use and environment but typically spans several years; heavy use or water exposure shortens service life. Replacing a failing servo motor restores precise climate control and removes dashboard noises caused by slipping or broken gears.
Technical Information
- Manufacturer: BEHR
- Model: Heater Servo Motor / HVAC Actuator
- Product Codes: 210665693F, 6447AP
- Other Numbers: NFP (as marked in the short description); verify additional PSA references with vehicle VIN
Notes For Mechanics And DIYers
Always verify electrical connector pinout and mechanical orientation before final installation. After fitting, run the HVAC system through all modes to confirm smooth flap travel and correct temperature response. If uncertain about access procedures for a specific model, consult the vehicle repair manual for step-by-step removal of surrounding trim and the HVAC housing.
