Description
This Valeo Heater Servo Motor F663746X.A 6447NL is a used replacement part intended for Citroën and Peugeot vehicles, primarily fitted to Citroën C2, C3 and Peugeot 1007. It is a practical choice for professional auto technicians and experienced DIYers who need reliable control of the vehicle heating and air distribution system.
Function
The heater servo motor operates the interior HVAC flaps and air distribution doors inside the ventilation unit. Correct operation directs warm air to the windshield, footwell or passenger area according to the climate control settings. When the servo fails, symptoms include incorrect airflow direction, stuck vents or inability to regulate cabin temperature.
Common Failure Causes
Typical failure modes are worn plastic gears, shaft seizure due to moisture or debris, connector corrosion or internal electrical faults. Symptoms can appear as grinding noises, intermittent or sluggish flap movement, or a complete loss of flap control.
Replacement And Installation
The servo motor is usually accessed from inside the vehicle behind the dashboard; removal of trim panels, the glovebox or lower dash sections may be required. Basic replacement steps: disconnect the battery, remove the necessary interior trim, unplug the electrical connector, remove mounting screws, fit the new servo and reassemble. Due to the confined space and vehicle-specific disassembly, replacement is recommended for qualified mechanics, though capable DIYers with Torx drivers, screwdrivers and standard sockets can perform the task.
Condition And Notes
This is a used Valeo replacement part. Each spare part is pre-tested and supplied in good technical condition to ensure functionality and reliable service when installed correctly.
Technical Information
- Manufacturer: Valeo
- Model: Citroën C2, Citroën C3, Peugeot 1007
- Product Codes: F663746X.A, 6447NL
- Additional Numbers: PSA CITROEN PEUGEOT
If you need further compatibility details, installation guidance or part matching by VIN, contact us with your vehicle information and part code. Fast sourcing of used OEM components helps keep repairs cost-effective while restoring correct HVAC operation.
