Description
Behr Heater Servo Motor For Citroën C5 X7 And Peugeot 407 Facelift
High-quality BEHR heater servo motor designed to restore accurate HVAC flap control on Citroën C5 X7 and Peugeot 407 facelift models. Frequently searched under part numbers EAD515, P2861001U or 31 647947, this actuator replaces worn or failed units that cause incorrect airflow direction, intermittent flap movement or persistent clicking noises. Ideal for professional workshops and DIY mechanics who need a direct-fit electric actuator to bring the ventilation and heating system back to reliable operation.
Technical Information
- Manufacturer: BEHR
- Model: Citroën C5 X7; Peugeot 407 Facelift
- Product Codes: EAD515; P2861001U
- Other Numbers: 31 647947
Function And Application
The servo motor (heater actuator) drives the internal HVAC flaps inside the heater/air distribution box. It provides precise angular positioning of blend and mode flaps via an electric motor and position feedback, ensuring correct temperature mixing and airflow routing to windscreen, face or footwell vents. Faulty actuators lead to wrong vent selection, unstable cabin temperature or audible clicking when the motor attempts to move a stuck flap.
Installation Recommendations
- Disconnect The Battery Before Starting To Avoid Short Circuits Or Unwanted Airbag System Actions.
- Access The Actuator From The Passenger-Side Dashboard Area—Often Behind The Glovebox Or Under The Lower Dash Trim. Remove Trim Panels Carefully To Avoid Breaking Plastic Clips.
- Unplug Electrical Connector And Remove Mounting Screws. Note The Flap Linkage Orientation To Ensure Correct Reinstallation.
- Transfer Any Mechanical Linkages Or Levers From The Old Unit If Required, Fit The New Actuator, Reconnect The Wiring And Secure Fasteners To Original Tightening Levels.
- Reconnect The Battery And Cycle The HVAC System To Allow The Actuator To Calibrate—Operate Through All Modes And Check Full Flap Movement.
- Check For Binding Or Damaged Flap Arms, Replace Any Broken Plastic Links And Ensure The Heater Box Seals Are Intact To Prevent Moisture Ingress.
- Use Basic Hand Tools (Screwdrivers, Torx Bits) And Handle Electrical Plugs With Care To Avoid Damaging Pins.
Why The Part Most Commonly Fails
Actuators fail mainly due to mechanical wear and environmental factors. Common causes include stripped plastic gears, motor burnout after prolonged use, moisture ingress causing corrosion or short circuits, and debris or sticky residue inside the heater box that jams flaps. Symptoms To Watch For Include Repeated Clicking Sounds, No Response When Changing Vent Modes, Incorrect Air Distribution And Inconsistent Cabin Temperature. Failures Are More Frequent On Older Or High-Mileage Vehicles Where Plastic Components And Seals Have Degraded.
Replacing A Faulty Servo Motor With The Correct BEHR Unit (Match The Product Codes EAD515 / P2861001U / 31 647947) Restores Reliable Flap Control And Improves Cabin Comfort. Suitable For Professional Fitment Or Competent DIY Mechanics Comfortable Working Behind The Dash.
