Description
This BEHR heater servomotor is used to control parts of the heating/air-conditioning system (typically the movement of flaps within the heater unit). If the vehicle exhibits irregular heating operation, inability to change airflow direction or temperature, or clicking/skipping noises from the dashboard area, the servomotor is often the cause.
High-quality BEHR heater servomotor designed for Stellantis group vehicles offers reliable control of HVAC flap positions to restore precise airflow direction and temperature regulation. Ideal for professional mechanics and competent DIY enthusiasts, this replacement part is commonly searched by its product codes and is suitable for specific Citroën and Peugeot models. Replacing a faulty servomotor eliminates intermittent climate control faults, removes audible clicking from the dash, and returns predictable ventilation behavior — improving comfort and avoiding misdiagnosis of more expensive HVAC components.
Technical Information
- Manufacturer: BEHR
- Model: Citroën C5 X7, Peugeot 407
- Product Codes: EAD516, P1975001
- Additional Numbers: U, 41647949
Compatibility & Fitment Notes
Fits indicated Stellantis models where this actuator design is used — notably Citroën C5 (X7) and Peugeot 407 applications. Many customers search by the part numbers listed above; always verify the part number printed on the existing servomotor to confirm fitment before installation.
Installation Recommendations
Before beginning, disconnect the vehicle battery to prevent short circuits. Access typically requires removal of dashboard trim or the glovebox to reach the HVAC housing. Unplug the electrical connector, remove the mounting screws or clips securing the actuator, and note the position of the flap/gear before removal to ensure correct reinstallation. Install the new servomotor, secure fasteners to original torque values, reconnect the electrical connector and battery, then cycle the HVAC controls to verify smooth operation and correct flap movement before reassembling trim. Take care not to force plastic gears or wiring; use gentle alignment and avoid over-tightening fasteners.
Common Failure Causes
Servomotors in HVAC systems most often fail due to worn or broken plastic gears, internal motor wear, or stripped gear teeth from age and repeated use. Electrical faults such as connector corrosion, shorted windings, or intermittent contacts can also lead to loss of function. In some cases, foreign debris or moisture ingress in the heater box accelerates mechanical wear. Typical symptoms include clicking or ticking noises from the dash, inability to change airflow direction or temperature, and intermittent or complete loss of flap movement.
Practical Tips
- Listen for clicking to locate a failing actuator before disassembly.
- When replacing, compare the new unit to the old one for identical mounting points and connector type.
- After replacement, run the HVAC through full range to allow any self-calibration routines to complete.
This servomotor is intended for use by trained technicians and experienced DIYers familiar with interior trim removal and basic electrical safety. It restores reliable HVAC flap control and removes common climate control complaints when matched to the correct vehicle application and part number.
