Description
Product Overview
High-quality BEHR heater servo motor designed for PSA climate systems. This HVAC actuator (model EAM501, codes 91508UA13 and 6447QN) controls airflow and temperature blend functions in Citroën and Peugeot passenger cars. It is a practical replacement part for workshops and experienced DIY mechanics addressing faulty temperature control or stuck blend doors.
Key Features
- Direct-fit servo motor for PSA heating and ventilation units
- Controls blend door/air distribution to regulate cabin temperature
- Compact electrical connector for easy swap
- Suitable for professional fitment and competent DIY installation
Fitment & Typical Models
Commonly fitted to PSA small cars. Typical fitment includes Citroën C2 and Citroën C3. Use the product codes (EAM501 / 91508UA13 / 6447QN) to confirm compatibility with your specific vehicle and HVAC assembly before purchase.
Replacement Guide (General)
Replacement is straightforward for trained technicians and capable DIYers. General steps:
- Disconnect the negative battery terminal to avoid electrical shorting.
- Remove the glovebox or lower dashboard access panel to reach the HVAC housing.
- Locate the heater servo on the HVAC unit, unplug the electrical connector and remove the mounting screws.
- Swap the old servo with the new BEHR unit, secure screws, reconnect the plug and reassemble panels.
- Reconnect the battery and cycle the HVAC controls to verify correct operation and ensure doors move freely.
Common Failure Modes & Maintenance Tips
Heater servo motors commonly fail due to plastic gear wear or stripping, motor burnout, moisture ingress, connector corrosion, or electrical faults. Symptoms include no temperature change, rattling or clicking noises from the dash, or HVAC doors stuck in one position. Check fuses and wiring before replacing the actuator. Avoid forcing stuck controls—address the actuator promptly to prevent secondary damage.
Technical Information
- Manufacturer: BEHR
- Model: Citroën C2; Citroën C3
- Product Codes: EAM501, 91508UA13, 6447QN
- Additional Numbers: EAM501 / 91508UA13 / 6447QN (use these codes to verify exact fitment)
Notes for Installers
Always verify compatibility using the vehicle VIN or original part number. After installation, cycle the HVAC system through all modes to confirm proper movement and alignment of internal doors. If intermittent faults persist, inspect wiring harnesses and connectors for corrosion or damage.
This BEHR heater servo motor is targeted at technicians and informed DIY mechanics who need a code-referenced replacement for PSA heating and climate control systems. Using the supplied part numbers will help ensure a correct match for your vehicle’s HVAC assembly.
