Description
Product Overview
This Valeo heater servo motor (control motor) with product codes F663746X.A and 6447NL is designed for PSA interior heating systems and commonly fitted to Citroën C2, Citroën C3 and Peugeot 1007 vehicles. It controls the position of HVAC blend and airflow flaps to direct warm or cool air to the cabin zones required by the occupants. The part number search makes it easy to find this replacement by code.
Key Benefits
Engineered by Valeo, this servo motor delivers precise flap movement to maintain correct airflow distribution and cabin comfort. It is suitable for both professional workshops and competent DIYers who perform HVAC repairs. Replacing a faulty unit restores correct temperature distribution and eliminates erratic airflow direction.
Function And Common Symptoms
The heater servo motor operates the internal heater/ventilation flaps. When it fails, common symptoms include: inability to direct warm air, incorrect temperature mixing, flap noise, clicking or grinding sounds from the dash area, or complete loss of flap movement. Failures typically stem from worn internal gears, electrical faults, connector corrosion or contamination by debris or moisture.
Replacement & Installation Notes
Access to the servo motor is usually from inside the vehicle, behind the dashboard or glovebox area. Typical replacement steps: disconnect the vehicle battery first; remove trim panels or glovebox to reach the actuator; unplug the electrical connector; remove retaining screws or clips; swap the servo motor and reassemble. The task can require moderate disassembly of the dash and is recommended to be performed by a qualified technician if you are not experienced. Always verify fitment by matching the product codes before installation.
Durability And Failure Causes
Lifetime depends on vehicle usage and environmental exposure. Common failure causes include mechanical wear of nylon gears, moisture ingress, foreign debris, or intermittent electrical connections. Regular HVAC maintenance and keeping cabin filters clean can reduce premature failures.
Technical Information
- Manufacturer: Valeo
- Model: Citroën C2, Citroën C3, Peugeot 1007
- Product Codes: F663746X.A, 6447NL
- Additional Numbers: PSA Citroën Peugeot
Each spare part is pre-tested and supplied in good working condition. If you need help confirming fitment for a specific chassis or year, use the product codes F663746X.A and 6447NL when searching or contact a technician for verification.
Fitment & Search Tips
Search the part using F663746X.A or 6447NL and include vehicle model (Citroën C2, C3 or Peugeot 1007) to ensure compatibility. Ideal for repair shops and DIYers restoring proper HVAC function in PSA vehicles.
