Technical Information:
Manufacturer: Valeo
Models: Citroën C2, C3, C5; Peugeot 206, 207, 1007, 406, 607
Product Codes: 6441L2, 6442P3
Additional Numbers: Valeo Manufacturer Number

This fan speed regulator controls the fan’s rotation speed according to engine temperature and vehicle requirements, preventing overheating and ensuring efficient cooling. It includes part of the wiring harness for easy installation. As a high-quality used component, it offers long-lasting performance and dependable operation.

Installation is straightforward, requiring no complex programming or adaptations due to its plug-and-play design, making it popular among both professional mechanics and DIY enthusiasts. The wiring connection is direct and only demands basic technical knowledge and tools.

The fan speed regulator is a critical component in your vehicle’s cooling system, responsible for regulating radiator fan speeds to maintain optimal engine temperature, especially during hot weather or under heavier engine loads.

This blower motor regulator (fan speed control) is a direct-fit replacement designed for heating and ventilation systems on a range of Citroën and Peugeot models. Ideal for professional mechanics and competent DIY enthusiasts, the unit restores reliable multi-speed fan control and eliminates symptoms such as loss of selected fan speeds, intermittent operation, or complete blower failure. Frequently searched by part numbers 6441L2, 6441P3 and 6442P3, this module improves comfort and defogging performance when installed correctly.

Technical Information

• Manufacturer: Stellantis (Citroën / Peugeot)
• Model: Citroën C2, C3, C5; Peugeot 206, 207, 1007, 406, 607
• Product Codes: 6441L2, 6441P3
• Other Numbers: 6442P3

Function and Application

The regulator controls the blower motor speed by modulating the electrical power supplied to the fan (typically using pulse-width modulation or an electronic resistance stage depending on the system). It is mounted in the HVAC housing near the blower motor or on the air distribution box. Correct operation ensures accurate fan speed selection, efficient cabin heating/cooling and rapid window demisting.

Signs Of Failure

• Blower runs only at one speed (usually high) or does not respond to speed selector changes
• Intermittent blower operation or complete loss of blower
• Clicking noises from under the dash or burning/electrical smell
• Reduced airflow and slower cabin demisting

Why The Part Most Commonly Fails

Failures are usually caused by prolonged thermal stress, dust accumulation, corrosion of connector pins, or excessive current draw from a worn blower motor. Poor ventilation in the HVAC box and water ingress (from clogged drainage or leaks) accelerate degradation of electronic components and solder joints.

Replacement Procedure

Basic replacement steps for a competent mechanic or DIYer:

1. Disconnect the negative battery terminal before starting work to avoid electrical hazards.
2. Access the regulator by removing the glovebox or lower dashboard trim on the passenger side as required for the model.
3. Locate the blower motor housing, unplug the electrical connector, and remove the retaining screws or clips securing the regulator.
4. Install the new unit, secure fasteners, and reconnect the electrical connector.
5. Reconnect the battery, then verify all fan speeds and HVAC functions before final reassembly.

Installation Recommendations

• Always disconnect the battery before removal and follow the vehicle manufacturer’s basic instructions to avoid damage.
• Inspect the blower motor for excessive play or brush wear; a failing motor increases load and shortens regulator life.
• Clean connector pins and HVAC housing; apply a small amount of dielectric grease to connectors to reduce corrosion risk.
• After fitting, verify all speed positions and listen for abnormal noises. If the new regulator fails quickly, re-check the blower motor current draw and ventilation drains for water ingress.

This replacement regulator is suitable for workshop installation and for experienced DIY repairs. Use the listed product codes (6441L2, 6441P3, 6442P3) to confirm match with the vehicle model and year before ordering.