Description
Overview
This electric heater fan is a direct replacement designed for the Citroën C5 first generation. It restores airflow through the cabin heating and air conditioning system, improves comfort and eliminates common blower motor noises or intermittent operation that occur with worn units. Part references included: 6441N7, F664529T, NF664529T.
Application
Designed primarily for Citroën C5 I models. Also suitable for PSA Group vehicles that use the same blower motor references. Ideal for workshops and competent DIY enthusiasts who perform HVAC repairs and replacements.
Features And Function
- Electric blower motor (heater fan) that forces air through the HVAC heat exchanger and cabin vents.
- Restores full ventilation and efficient cabin heating or cooling when the original fan fails or becomes noisy.
- Direct-fit replacement for ease of installation when the correct product codes are matched.
Common Faults And Causes
Typical symptoms that indicate replacement: little or no airflow from the vents, noisy operation (bearing rumble or squeal), intermittent function or complete failure. Common causes include bearing wear, dust and debris build-up, electrical connector corrosion or motor windings degradation. In some cases a faulty blower motor resistor can affect fan speeds; however, a worn motor often produces noise and total loss of function.
Replacement Notes
Basic replacement steps (general guidance):
- Disconnect the negative battery terminal to prevent electrical shorts.
- Access the blower motor by removing the glovebox or the lower dash access panel on the passenger side, depending on the vehicle layout.
- Unplug the electrical connector and remove any retaining screws or clips securing the fan assembly.
- Replace the old unit with the new blower, secure fasteners, reconnect the electrical plug and reassemble the trim panels.
- Reconnect the battery and test all fan speeds and HVAC functions before finalising the installation.
Maintenance And Service Tips
To extend service life: keep cabin filters clean to reduce debris entering the blower, inspect electrical connectors for corrosion, and listen for early signs of bearing noise. If fan speed issues persist after replacing the motor, inspect the blower resistor and wiring harness.
Technical Information
Manufacturer: PSA Group (Citroën / Peugeot)
Model: Citroën C5 I
Product Codes: 6441N7, F664529T, NF664529T
Other Numbers: 6441N7
This heater fan is offered for professional fitment and DIY replacement. Verify part numbers against your vehicle registration or VIN to ensure correct compatibility before purchase. If uncertain, consult a qualified technician or parts specialist for confirmation.
