Description
This BEHR heater actuator (servo motor) EAD511 H1961 b is a tested used replacement part designed for PSA vehicles, specifically Citroën C4 and Peugeot 307 II. The actuator controls airflow direction inside the HVAC box and is a cost-effective solution for workshops and DIY mechanics looking to restore proper climate control.
Function And Benefits
The heater actuator operates the HVAC flaps to direct warm or cool air to the windshield, footwell or cabin vents. A properly working actuator ensures even cabin heating and defogging performance. This unit is valued for straightforward fitment, clear product identification by code (EAD511 / H1961 b) and proven compatibility with the listed models.
Common Failure Modes
Actuator problems typically present as incorrect air distribution, strange noises from the dash, intermittent flap movement or a permanent loss of position control. Common causes include worn plastic gears, motor wear, moisture ingress, connector corrosion or stripped splines. Failures usually develop over years of use and may be more likely after high mileage or exposure to temperature cycles.
Replacement Overview
On Citroën C4 and Peugeot 307 II models the actuator is mounted on the heater/air-conditioning box inside the dashboard (often accessed via the glovebox or lower dash panel). Typical replacement steps:
- Disconnect the vehicle battery for safety.
- Remove the glovebox or lower trim to reach the HVAC unit.
- Unplug the actuator electrical connector and remove the securing screws.
- Transfer any position-specific linkages or replace the actuator directly with the new unit.
- Reconnect the connector, reassemble trim, reconnect the battery and verify flap movement through all HVAC modes.
Who Should Buy This Part
This tested used BEHR heater actuator is ideal for professional automechanics and competent DIYers who need a reliable replacement part identified by product codes. It is a practical repair option when the original actuator shows signs of mechanical wear or electrical failure.
Technical Information
- Manufacturer: BEHR
- Model: Citroën C4, Peugeot 307 II
- Product Codes: EAD511, H1961 b
- Additional Numbers: 6447VA
If your vehicle shows symptoms like incorrect air distribution, rattling or silent failure of the HVAC flaps, replacing the actuator with the correct code (EAD511 / H1961 b) will often restore full functionality and improve cabin comfort and defogging performance.
