Product Overview

This BEHR heater blower is designed for heating, ventilation and air conditioning systems in Citroën C4 and Peugeot 307 II models. The blower motor circulates air through the heater core and evaporator to deliver cabin heating and climate control. Ideal for professional workshops and experienced DIY mechanics searching by product codes such as 6441S6, B9506 or u2331001.

Key Features And Benefits

• Direct Replacement For Factory Blower Motor: Engineered to match OE form and fit for smooth installation.
• Reliable Airflow: Restores proper cabin airflow for heating and air conditioning performance.
• Compatible With Common Stellantis Models: Specifically referenced for Citroën C4 And Peugeot 307 II.
• Multiple Product Codes Listed: Helps technicians locate the correct spare quickly using OE or aftermarket references.

Technical Information

• Manufacturer: BEHR
• Model: Citroën C4, Peugeot 307 II
• Product Codes: 6441S6, B9506, u2331001, pf2a2
• Additional Numbers: 6441.S6 | 6441S6 | B9506 | u2331001

Signs Of A Fault

• Noise From Dashboard Area: Grinding, rumbling or squealing indicating worn bearings or debris in the fan wheel.
• Reduced Or No Airflow: Weak airflow at all speed positions or only working on certain fan speeds.
• Intermittent Operation: Blower works sporadically or only at specific fan settings.
• Burnt Smell Or Smoke: Electrical faults in motor windings or connectors.

Why This Part Commonly Fails

Blower motors fail primarily due to mechanical wear and contamination. Typical causes include brush and commutator wear in brushed motors, seized or worn bearings, accumulation of leaves and debris in the fan housing, and water ingress from clogged drain channels. High mileage and frequent use of climate control accelerate wear.

Replacement Procedure (Overview)

The replacement process is straightforward for a skilled technician or experienced DIYer. Typical steps:

1. Disconnect The Battery And Follow Manufacturer Safety Procedures.
2. Remove Dashboard Trim Or Glovebox To Access The HVAC Housing.
3. Unplug The Electrical Connector From The Blower Motor.
4. Unscrew Fasteners Securing The Blower Assembly And Extract The Unit From The Housing.
5. Install The New Blower Motor, Refit Fasteners, Reconnect Electrical Connector And Reassemble Trim.
6. Reconnect The Battery And Test All Fan Speeds And HVAC Functions.

Installation Recommendations

• Perform Installation On A Flat, Stable Surface With Adequate Lighting.
• Inspect The HVAC Housing And Drain Channels For Debris Or Blockages Before Fitting The New Blower.
• Check Electrical Connector And Wiring For Corrosion Or Damage; Repair As Necessary.
• When Replacing The Blower, Compare The New Unit With The Old One To Ensure Correct Fitment And Connector Type.
• After Installation, Cycle Through All Fan Speeds And Verify Silent, Smooth Operation.

Notes For Professionals And DIY Mechanics

Searching By Product Code Improves Speed Of Parts Identification. Keep Replacement Blower Motors Clean During Installation To Avoid Introducing Contaminants Into The HVAC System. For noisy fans, inspect the fan wheel for damaged blades and the cabin air filter for clogging, as restricted airflow increases motor load.

Buy With Confidence

If You Need A Direct, Reliable Replacement For The Heater Blower In Citroën C4 Or Peugeot 307 II, This BEHR Unit Carries Common Reference Numbers (6441S6, B9506, U2331001) That Make It Easy To Find The Correct Part For Quick Repair And Return-To-Service.

Product Description

This BEHR heater blower is a direct-fit electric fan motor designed for heating and ventilation systems in Citroën C4 and Peugeot 307 II vehicles. Intended for professional workshops and experienced DIY mechanics, this unit restores reliable cabin airflow, improves heater performance and ensures consistent climate control response. The part is frequently searched by product codes (u2331001, B9506, 6441S6), so using the correct reference number speeds up identification and ordering.

Technical Information

• Manufacturer: BEHR
• Model: Citroën C4, Peugeot 307 II
• Product Codes: u2331001, B9506, 6441S6
• Other Numbers: 6441.S6, pf2a2

Installation Recommendations

Before starting, always disconnect the battery to avoid short circuits and protect vehicle electronics. Typical replacement steps for an experienced mechanic or competent DIYer:

• Gain access to the blower housing (commonly located under the passenger-side dashboard or behind the glovebox).
• Remove trim panels or glovebox as required to reach the blower assembly, keeping fasteners organized for reassembly.
• Disconnect the electrical connector and any wiring clips attached to the blower motor.
• Remove mounting screws or clips securing the blower; extract the old unit carefully to avoid damaging ducts or wiring.
• Install the new blower in the correct orientation, secure all fasteners to manufacturer recommendations, reconnect the electrical connector and test operation at all fan speeds before reassembling trim.
• Replace or inspect the cabin filter and clean the blower housing of debris to prolong service life.

Why The Part Most Commonly Fails

Heater blowers fail mainly due to mechanical wear and environmental contamination. Common causes include worn bearings or brushes (in brushed motors), dust and leaf ingress that jams the fan, moisture or corrosion of electrical contacts, and overheating from clogged cabin filters or prolonged heavy use. Symptoms of a failing blower are reduced airflow, unusual noises (rubbing, grinding or squealing), and intermittent operation at certain fan speeds.

Practical Tips For Reliability

• Check and replace the cabin filter regularly to prevent debris from entering the blower housing.
• Inspect connectors and wiring for corrosion or damage when replacing the unit.
• Test all fan speeds after installation to confirm proper function of the blower and associated control circuits.
• Keep replacement references (product codes) handy when ordering to ensure exact fitment.

High-quality BEHR heater blower designed as a direct-fit replacement for Citroën C4 and Peugeot 307 II vehicles. This heater fan unit restores reliable cabin airflow for heating, ventilation and air-conditioning systems, delivering quiet operation and consistent performance. Frequently searched under part numbers 6441.Y7, 6441Y7, B9506 or u2331001, this blower motor is an ideal choice for professional workshops and DIYers who need a dependable, easy-to-install replacement part.

Technical Information

• Manufacturer: BEHR
• Model: Citroën C4, Peugeot 307 II
• Product Codes: B9506, 6441.Y7, 6441Y7
• Other Numbers: u2331001, pf2a1

Application and Compatibility

Intended for use as the heater blower (cabin fan) in compatible Citroën C4 and Peugeot 307 II models. Often referenced by the above product codes in parts catalogs and online searches. Verify fitment by matching the unit shape, connector type and mounting points to the original component on the vehicle.

Function and Typical Symptoms

The heater blower circulates air through the HVAC box, providing cabin heating, ventilation and air-conditioning airflow. When the blower fails, common symptoms include reduced airflow from vents, unusual noise (rubbing/grinding or rattling), intermittent operation or complete loss of fan function. Faults may appear gradually (increased noise, slower spin) or suddenly (fan stops working).

Common Causes Of Failure

• Worn Carbon Brushes Or Commutator Wear Causing Poor Electrical Contact
• Bearing Wear Leading To Excessive Play, Noise Or Seizure
• Ingress Of Debris, Leaves Or Moisture Causing Blockage Or Corrosion
• Overheating Due To Blocked Cabin Filter Or Faulty Blower Resistor
• Electrical Issues Such As Corroded Connectors Or Blown Fuses

Replacement Procedure (General Guide)

Suitable for experienced mechanics and competent DIYers. Procedures vary slightly by model and year; follow vehicle manufacturer instructions where available.

• Disconnect The Battery Before Starting Work To Avoid Short Circuits.
• Access The Blower Motor Typically From The Passenger Footwell—Remove Glovebox Or Lower Dash Trim As Required.
• Disconnect The Electrical Connector And Any Associated Harness Clips.
• Remove Mounting Screws Or Bolts Securing The Blower Housing And Extract The Old Unit.
• Compare New Unit With The Old One: Check Connector Pinout, Mounting Points And Fan Direction.
• Install New Blower, Secure Fasteners, Reconnect Electrical Connector, And Refit Trim/Glovebox.
• Reconnect The Battery And Test All Fan Speeds And HVAC Functions Before Final Reassembly.

Installation Recommendations

• Always Disconnect The Battery Before Removal To Prevent Electrical Damage.
• Inspect And Replace The Cabin Filter If Contaminated; A Blocked Filter Increases Load On The Blower.
• Check The Blower Resistor, Fuses And Connectors While Replacing The Motor; Replace Faulty Components.
• Use Suitable Tools And Avoid Over-Tightening Fasteners; Apply A Small Amount Of Dielectric Grease To Electrical Connectors If Needed.
• Test The Unit Through All Fan Speeds Before Fully Reassembling The Dashboard.

Why This Part Is Often Searched By Number

Technicians and DIYers frequently search by part number (e.g., 6441.Y7, B9506, u2331001) to quickly identify compatible blower motors and ensure they receive the correct unit. Using the correct reference reduces diagnostic time and avoids returns due to fitment issues.

Notes For Professionals

When replacing the heater blower, evaluate the entire HVAC airflow path—blocked filters, damaged ducts or a failing blower resistor can cause repeat failures. Replacing the blower and addressing root causes will restore comfort and prevent premature repeat repairs.

Search Keywords

Heater Blower, Blower Motor, BEHR Blower, Citroën C4 Heater Fan, Peugeot 307 II Blower, 6441.Y7, B9506, u2331001