High-quality heater servo motor manufactured by BEHR, specified under codes EAD516, P1975001 and 647948. Designed for PSA group vehicles, this unit is a direct-fit HVAC actuator commonly used on the Citroër C5 X7. Often searched by part number, it restores reliable control of heater and ventilation flaps for precise cabin temperature regulation.

Key Features

• Direct-fit replacement for Citroër C5 X7 HVAC systems
• OEM-quality BEHR component offering accurate position control
• Compatible with PSA Citroër and Peugeot electrical interfaces
• Easy to identify by part numbers EAD516, P1975001, 647948

Common Symptoms And Causes Of Failure

Heater servo motors fail due to worn gears, plastic gear stripping, potentiometer wear or contamination from dust and moisture. Typical symptoms include no change in cabin temperature when adjusting controls, knocking or grinding noises from the dash, intermittent flap movement, or HVAC blend/airflow faults recorded by diagnostic tools. These issues increase with age and mileage and are commonly reported after several years of use in daily-driven vehicles.

Replacement And Installation Notes

Replacement is straightforward for experienced technicians and competent DIYers. Access is usually gained via the glovebox or lower dashboard access panel depending on the vehicle. Procedure in brief: disconnect battery if recommended, remove access panels, unplug the electrical connector, remove retaining screws, replace the actuator and reassemble. After installation the actuator may self-calibrate during the vehicle start-up sequence; in some cases HVAC system cycling or a brief diagnostic adaptation may be required. Always consult the vehicle repair manual for exact disassembly steps and torque values.

Maintenance And Service Life

There is no fixed replacement interval; lifespan depends on usage, environment and exposure to moisture. Regular inspection of HVAC operation and prompt replacement when symptoms appear prevents secondary damage to HVAC flaps and ensures continued cabin comfort. Keep connectors clean and avoid forced movement of flaps to extend service life.

Technical Information

• Manufacturer: BEHR
• Model: Citroër C5 X7; Compatible With PSA Citroër/Peugeot Vehicles
• Product Codes: EAD516, P1975001
• Other Numbers: 647948

This heater servo motor is a practical replacement option for mechanics and DIY enthusiasts looking to restore proper HVAC function. Search by the listed part numbers to confirm compatibility with your vehicle before ordering.