Description
Product Overview
The BEHR EAD511 heater servo motor (actuator) is a direct-fit HVAC component designed for Citroën C4 and Peugeot 307 II models. It controls the position of climate control flaps to regulate airflow distribution and temperature blend. Engineered for professional mechanics and DIY enthusiasts, this unit replaces faulty actuators commonly found in PSA vehicles.
Key Features
- Direct replacement for BEHR EAD511 / H1961 / 6447VA part numbers
- Restores accurate flap movement for vent selection and temperature mixing
- OEM-quality fitment for Citroën and Peugeot HVAC systems
- Electrical connector and mounting compatible with the original housing
When And Why It Fails
Common failure modes include worn plastic gears, seized motor bearings, damaged position sensor or internal electronics, and water ingress or corrosion from HVAC condensation. Typical symptoms are stuck or unresponsive flaps, incorrect vent selection, lack of temperature change, or unusual noises from the dash area.
Installation Notes
Replacement is straightforward for experienced technicians: disconnect the vehicle battery, access the heater box (typically behind the glovebox or under the dash), remove the retaining screws, unplug the electrical connector, swap the actuator and reassemble. After installation, verify full range of motion and correct HVAC operation; some systems may require recalibration using vehicle diagnostics.
Compatibility
Intended for use on Citroën C4 and Peugeot 307 II models with the matching actuator mounting and electrical connector. Always verify part numbers and plug shape against the original unit before purchase to ensure correct fitment.







