Description
Overview
High-quality BEHR heater servo motor designed for Citroën and Peugeot heating systems. This actuator operates the HVAC blend/air distribution flaps to regulate cabin temperature and airflow. Frequently searched by original part numbers, it is suitable for workshop use and competent DIY repairs.
Compatibility
Designed to fit PSA small-car applications, notably Citroën C2 and Citroën C3 models. Always verify compatibility using the part numbers A7583003Ud21, 6447QN or EAM501 to ensure a direct fit with your vehicle.
Function and Common Faults
- Function: Controls the heater blend door or air distribution flap to mix hot and cold air and set the required cabin temperature.
- Common Faults: Worn plastic gears, motor burnout, broken splines, electrical connector faults or moisture ingress can cause noisy operation, stuck flaps, incorrect temperature or no movement at all.
- Symptoms: Unresponsive temperature control, rattling from under the dashboard, inconsistent airflow direction or constant blower noise during HVAC adjustments.
Replacement Guide
Typical replacement requires access to the heater box behind the dashboard or glovebox. Basic steps: disconnect the battery for safety, remove the relevant trim or glovebox, unplug the actuator electrical connector, remove mounting screws, replace with the new servo motor and reconnect. After installation, cycle the HVAC controls to confirm correct operation and full range movement.
Maintenance Tips
Prevent failures by avoiding water intrusion, keeping the HVAC system free of debris and checking connectors for corrosion. If the actuator is noisy or fails to reach end positions, replacement is recommended to restore precise climate control.
Technical Information
- Manufacturer: BEHR
- Model: Citroën C2, Citroën C3
- Product Codes: EAM501, A7583003Ud21, 6447QN
- Additional Numbers: None Specified
Note: Always confirm the exact part number before ordering to ensure compatibility with your vehicle. This servo motor is intended for professional mechanics and experienced DIYers comfortable with dashboard disassembly and basic electrical checks.
