Description
Heating Servo Motor For CITROËN C4 II And PEUGEOT 308 T7. HVAC Gearmotor.
High-quality Valeo heating servo motor designed for precise control of HVAC flaps in Citroën C4 II and Peugeot 308 T7 climate systems. This servomotor (gearmotor) operates blend/recirculation/air distribution flaps to regulate cabin temperature and airflow. Ideal for professional workshops and DIY mechanics looking for a direct-fit replacement that restores proper climate control function, reduces cabin noise and eliminates intermittent flap movement. Commonly searched under part codes T1002120V and 6479E7.
Technical Information
- Manufacturer: Valeo
- Model: Citroën C4 II; Peugeot 308 T7
- Product Codes: T1002120V, 6479E7
- Other Numbers: No Additional Numbers Available
Function and Symptoms
The servo motor drives internal HVAC flaps that control blend (temperature mixing), distribution (vent selection) and sometimes recirculation doors. When failing, typical symptoms include unusual clicking or grinding noises from the dashboard, incorrect cabin temperature, inability to change airflow direction, or intermittent operation of the climate system.
Why The Part Fails Most Often
Failures are usually caused by wear of the small plastic gears inside the gearbox, motor burnout after years of use, contamination from dust or moisture, or damage from forced flap movement (blocked or sticky mechanisms). Electrical connector corrosion and intermittent wiring faults can also produce similar symptoms.
How To Replace
Basic replacement steps for workshop or experienced DIY mechanics:
- Disconnect the negative battery terminal before any electrical work.
- Remove necessary trim panels (often glovebox or lower dash panels) to access the HVAC plenum.
- Locate the faulty servo attached to the heater/air conditioning unit, unplug the electrical connector and remove retaining screws.
- Withdraw the old unit, fit the new servo ensuring correct spline/shaft engagement, secure with screws and reconnect the harness.
- Restore trim and reconnect the battery. Cycle the climate controls to verify full range movement and absence of abnormal noises.
Installation Recommendations
- Always disconnect the battery before starting work and follow vehicle manufacturer’s removal/installation sequence where available.
- Inspect linkages and flap mechanisms for binding, broken clips or foreign objects before fitting the new servo.
- Test the new motor through a full range of operation before reassembling trim to ensure correct alignment and quiet running.
- Replace any damaged clips or gaskets encountered during disassembly to prevent future ingress of dust or moisture.
Notes For Buyers
This part is a direct-replacement HVAC servo suitable for Citroën C4 II and Peugeot 308 T7 climate units. If you require exact cross-references, use the product codes T1002120V and 6479E7 when searching catalogues or ordering parts. Fitment may vary by production year and equipment level; evaluate the actuator location and connector type before purchase.
