Description
Overview
The BEHR heater servo motor (EAD511) is a direct-fit HVAC actuator designed for PSA vehicles, specifically Citroën C4 and Peugeot 307 II. It controls the heater/ventilation flaps inside the heater box to regulate cabin temperature and air distribution. Frequently searched by part number for fast identification.
Features And Function
This electric servo converts climate-control commands into precise flap movement to mix hot and cold air or direct airflow. Proper operation ensures consistent cabin temperature and correct airflow direction. Common symptoms of a failing unit include erratic temperature, stuck or mispositioned flaps, clicking noises from the dash, or HVAC fault indicators.
Typical Causes Of Failure
Failures typically stem from worn or stripped plastic gears, motor burnout, moisture ingress, or connector/electrical faults. Service life varies by usage and environment; heavy use, condensation, or contamination can shorten lifespan.
Replacement Notes
Replacement usually requires access to the heater box area behind the glovebox or lower dash. Standard procedure: disconnect the battery, remove the glovebox or trim panels to reach the actuator, unplug the electrical connector, remove mounting screws, fit the new servo, and verify mechanical movement and HVAC operation. If you are unsure, have a qualified technician perform the replacement.
Technical Information
- Manufacturer: BEHR
- Model: Citroën C4; Peugeot 307 II
- Product Codes: EAD511; EAD 511; H1961
- Additional Numbers: Ua 13; 6447VA
Use the listed product codes when searching or ordering to ensure correct fitment. Always verify compatibility with the vehicle VIN or parts catalogue before installation.
