Description
Heater and Air Conditioning Blower Fan for Citroën C5 II and Peugeot 407.
High-quality replacement blower motor designed for the heating and air conditioning systems of Citroën C5 II and Peugeot 407. This direct-fit blower restores proper cabin airflow, reduces unusual noise and vibration, and helps the HVAC system reach the desired temperature faster. Frequently searched by OE codes such as 4PUH-18456-AF, 4PUH-18456-BA and 6441S3, this unit is suitable for professional technicians and experienced DIY enthusiasts looking for a reliable solution for failed cabin fans.
Features And Benefits
- Direct Fit For Listed Models: Designed to match OEM mounting points and electrical connector to simplify installation.
- Improved Cabin Comfort: Restores correct airflow for faster heating and cooling of the passenger compartment.
- Reduced Noise And Vibration: New bearings and balanced impeller lower operating noise compared with worn units.
- Durable Construction: Built to withstand typical under-dash conditions including dust and humidity.
- Part Number Search Friendly: Commonly referenced by product codes for quick identification and ordering.
Compatibility
Compatible with the following models (please ensure the part numbers match the vehicle application): Citroën C5 II; Peugeot 407. Often located under model searches and aftermarket catalogs by OE codes 4PUH-18456-AF, 4PUH-18456-BA or 6441S3.
Technical Information
- Manufacturer: Stellantis (Citroën/Peugeot)
- Model: Citroën C5 II; Peugeot 407
- Product Codes: 4PUH-18456-AF; 4PUH-18456-BA; 6441S3
- Additional Numbers: NFP
Installation Recommendations
- Safety First: Disconnect the vehicle battery before starting work to avoid short circuits and damage to electrical components.
- Access: The blower motor is usually located under the passenger-side dash or behind the glovebox. Remove the glovebox or lower trim panels to gain access.
- Removal: Disconnect the electrical connector, remove mounting screws or clips securing the blower, and withdraw the motor assembly. Inspect the blower housing and air intake for debris.
- Related Components: Check the blower resistor or PWM control module and cabin air filter during replacement—these parts commonly affect blower performance and may require servicing at the same time.
- Final Check: Reconnect the battery, test all fan speeds and listen for abnormal noise or vibration before reassembling trim panels.
Why The Part Fails Most Often
- Bearing Wear: Over time bearings wear out, causing increased noise and reduced rotation efficiency.
- Debris And Dust Ingress: Leaves, dust and dirt can accumulate in the blower intake and housing, obstructing the impeller and overloading the motor.
- Moisture And Corrosion: Water ingress or high humidity can corrode electrical connections and motor components.
- Electrical Issues: Faulty blower resistors, control modules or wiring problems can cause intermittent operation or loss of fan speeds.
Notes For Mechanics And DIYers
This blower fan is a practical replacement for restoring HVAC performance in Citroën C5 II and Peugeot 407 vehicles. When ordering, use the OE product codes to ensure the correct fit. Routine inspection of the cabin air filter and blower housing during scheduled service can help extend the service life of the fan and maintain comfortable cabin climate control.
