Description
The heater and air conditioning blower for Citroën C5 and Peugeot 407 is designed for mid-size cars, ensuring proper air circulation in the cabin and efficient heating and cooling. Thanks to this part, the heating and air conditioning operate smoothly, without fluctuations in fan performance and without unwanted noises from the dashboard area.
This replacement blower motor is a practical choice for professional workshops and DIY mechanics who need a reliable, direct-fit part for climate system repairs. It restores consistent airflow across all fan speeds, reduces cabin noise caused by worn or damaged fans, and is frequently searched by its product codes — useful when ordering or cross-referencing with parts catalogs.
Key Benefits
- Stable Airflow: Ensures even distribution of heated or cooled air throughout the cabin.
- Reduced Noise: Eliminates rattles and vibration caused by worn impellers or bearings.
- Direct Fit: Designed to match factory mounting points and electrical connections for Citroën C5 II and Peugeot 407.
- Easy Identification: Commonly referenced by OE codes (see Technical Information) for fast lookup in parts systems.
Typical Applications
Suitable for mid-size passenger cars where the factory blower motor is located under the dashboard (passenger side). Commonly fitted in:
- Citroën C5 II
- Peugeot 407
How It Is Replaced
Replacement of the blower motor is straightforward for a trained technician or an experienced DIYer with basic tools:
- Safety First: Disconnect the battery or isolate the blower circuit to avoid short circuits and accidental motor activation.
- Access: Remove the glove box or lower dash trim on the passenger side to reach the blower housing.
- Disconnect: Unplug the electrical connector and remove mounting screws retaining the blower assembly.
- Remove: Extract the blower motor and inspect the housing and air intake for debris.
- Install: Fit the new blower motor, reconnect the electrical connector, secure mounting screws and reassemble trim.
- Test: Reconnect power and verify operation across all fan speeds; listen for smooth, quiet running before final reassembly.
Installation Recommendations
- Always disconnect the battery or the blower fuse before starting work to prevent electrical damage.
- Check and replace the cabin air filter if heavily contaminated; a clogged filter increases load on the blower.
- Inspect electrical connectors and fuses; replace corroded terminals and ensure a secure connection.
- Clean the blower intake and drain channels to prevent debris and water ingress that shorten motor life.
- After installation, cycle all fan speeds to confirm stable operation and to detect any abnormal noises early.
Reason For Failure
Blower motors commonly fail due to:
- Worn Brushes Or Bearings: Mechanical wear inside the motor leads to reduced performance, noise, or total seizure.
- Debris In The Fan Wheel: Leaves, twigs, or loose trim can damage impeller blades and cause imbalance or noise.
- Water Ingress Or Corrosion: Blocked drainage or leaks allow moisture to reach the motor and electrical connections.
- Electrical Issues: Faulty connectors, relays or blower resistors can mimic motor failure or cause intermittent operation.
Maintenance Tips
- Keep the cabin filter clean to reduce strain on the blower motor.
- Regularly clear the HVAC intake and drainage paths to avoid water and debris accumulation.
- Listen for early signs of failure — grinding, rattling or intermittent speeds — and act before complete breakdown.
Technical Information
- Manufacturer: Stellantis
- Model: Citroën C5 II; Peugeot 407
- Product Codes: 4PUH-18456-BA; 4PUH-18456-AF
- Other Numbers: 6441S3; NFP
Note: Many customers search for this part by its product codes. Verify the code against your vehicle’s existing part before ordering to ensure a correct match.
