Description
Overview
Used BEHR heater servo motor suitable for Citroën and Peugeot vehicles, specifically compatible with Citroën C4 and Peugeot 307 II. This actuator (EAD512 / 6447RF / H1959 U B 42) controls the HVAC blend or air distribution flaps to regulate cabin temperature and airflow. Ideal for professional workshops and DIY mechanics seeking a cost-effective replacement that maintains precise climate control.
Function
The heater servo motor moves the blend door or distribution flaps inside the heater/ventilation unit, allowing the HVAC system to mix warm and cold air to reach the selected cabin temperature. Accurate positioning prevents temperature fluctuations and directs airflow to the correct vents.
Symptoms Of Failure
- Inconsistent cabin temperature or inability to reach the set temperature
- Stuck vents or lack of airflow to specific outlets
- Clicking, grinding or unusual noises coming from behind the dashboard
- HVAC-related fault codes reported by diagnostic tools
Causes And Typical Lifespan
Common failure causes include worn internal gears, motor wear, electrical connector faults, and water or debris ingress. Lifespan varies by usage and environment; high-mileage vehicles or those exposed to moisture may experience earlier failures.
Replacement & Installation
Replacement is a routine repair for experienced DIYers and professional technicians. Typical procedure: disconnect the vehicle battery, access the HVAC unit (often via glovebox removal or lower dash panels), unplug the electrical connector, remove mounting screws, replace the actuator and reassemble. Required time generally ranges from 30 to 90 minutes depending on access and model. Always confirm fitment by cross-referencing the product codes before installation.
Why Choose This Part
This used BEHR servo motor provides a cost-effective solution to restore proper HVAC functionality while keeping repair costs down. The part is described as inspected and ready for installation to help speed up repairs and reduce downtime. Verify compatibility using the listed product codes to ensure correct fitment.
Technical Information
Manufacturer: BEHR
Model: Compatible With Citroën C4 And Peugeot 307 II
Product Codes: 6447RF, EAD512, H1959 U B 42
Other Numbers: 6447RZ
