Description
Heater servo motor for Citroën and Peugeot vehicles. You may receive a direct replacement. Air conditioning gear motor.
Overview
This Valeo heater servo motor (actuator) is designed for HVAC systems in various Citroën and Peugeot models. It operates the climate control flaps and blend doors to regulate airflow direction and cabin temperature. Commonly sought under product codes T1006419G and 1411111B (also referenced as 6447NL), this unit is a direct-fit electromechanical replacement for worn or failed HVAC actuators.
Compatibility
Typical fitment includes, but is not limited to: Citroën C2, Citroën C3, Citroën C4 II and Peugeot 308. Always verify the part numbers T1006419G / 1411111B / 6447NL against the existing unit on the vehicle to confirm fitment.
Function
The servo motor moves internal HVAC flaps (mode and blend doors) to direct airflow to the windscreen, footwell or face vents and to mix hot and cold air for temperature control. It contains a small DC motor with reduction gears and position feedback (often via a potentiometer or end-stop detection) to set and hold flap position.
How Replacement Is Performed
Replacement is a job suitable for experienced DIYers and professional technicians. Typical procedure:
- Disconnect the negative battery terminal before starting to avoid short circuits and protect vehicle electronics.
- Gain access to the HVAC actuator location – commonly behind the glovebox, under the dashboard or near the center console depending on the model.
- Remove trim panels or glovebox to expose the actuator. Take care with fasteners and clips to avoid damage.
- Unplug the electrical connector and remove the mounting screws securing the actuator to the HVAC housing.
- Install the new servo motor in the correct orientation, secure mounting screws, and reconnect the electrical connector.
- Reconnect the battery, then cycle the HVAC controls through all positions to confirm correct movement and eliminate calibration faults before reassembling trim.
Technical Information
- Manufacturer: Valeo
- Model: Citroën / Peugeot HVAC Servo Motor
- Product Codes: T1006419G, 1411111B
- Additional Numbers: 6447NL
Installation Recommendations
- Work on a cool, stable surface with good lighting. Keep removed screws and clips organized for reassembly.
- Disconnect the battery before removing electrical components to reduce risk to vehicle electronics.
- Inspect the connector and wiring harness for corrosion or damage; repair as necessary to prevent repeat failures.
- After installation, cycle HVAC functions and verify full travel of flaps. Some systems self-calibrate; others may require a simple initialization routine via the climate controls.
- If access is difficult or the vehicle has integrated climate control modules, consider professional installation to avoid accidental damage to dash components or airbags.
Why This Part Fails
Failure modes are typically mechanical or electrical: worn or stripped plastic gears inside the actuator, worn motor brushes, seized geartrain from dirt or humidity ingress, connector corrosion, or broken mounting tabs. Symptoms include clicking noises from the dash, stuck or mispositioned flaps, inconsistent airflow distribution, or incorrect cabin temperature control. Long service life, exposure to moisture, and repeated actuator cycling increase the likelihood of failure.
Benefits Of Replacing The Servo Motor
- Restores correct airflow distribution and temperature control.
- Eliminates clicking noises and intermittent HVAC malfunctions.
- Direct-fit replacement with original referenced product codes for straightforward installation.
Notes For Buyers
Part numbers on the unit are commonly used when searching for replacements: T1006419G, 1411111B and 6447NL. This description uses OEM-referenced codes and common model names to improve searchability and help mechanics or DIYers find the correct unit quickly.
