Description
Heater servo motor for Citroën C4 II and Peugeot 308 T7
Product Overview
High-quality replacement heater servo motor designed for climate control systems in selected Stellantis vehicles. This actuator controls airflow distribution and temperature blend doors, restoring precise cabin climate regulation. Ideal for professional workshops and DIY mechanics searching by part numbers T1002120V or 6479E7.
Features & Benefits
- Direct-fit replacement for the original actuator—simplifies repair and reduces downtime.
- Restores reliable flap movement and accurate temperature control, eliminating stuck vents and uneven heating.
- Compact electrical connector and mounting footprint matching OEM locations for easy installation.
- Important fitment information included in Technical Information section (part numbers and compatible models).
Technical Information
- Manufacturer: Valeo
- Model: Citroën C4 II; Peugeot 308 T7
- Product Codes: T1002120V, 6479E7
- Other Numbers: 64790000000
Compatibility / Fitment
Compatible with Citroën C4 II and Peugeot 308 T7 climate control systems where the OEM part numbers match T1002120V or 6479E7. Always verify the part number shown on the original actuator before ordering to ensure correct fitment.
Function And Symptoms
This servo motor (blend door actuator) moves internal flaps that direct airflow and mix hot and cold air to reach the selected cabin temperature. Common symptoms of a failing unit include:
- Inability to change temperature or airflow direction.
- Unusual clicking or grinding noises from the dashboard when adjusting climate settings.
- Intermittent or complete loss of movement of ventilation flaps.
Replacement Procedure (Overview)
Replacement typically requires removing trim panels or the glove box to access the HVAC case on the passenger side. General steps:
- Disconnect the vehicle battery to avoid electrical shorts.
- Remove glove box or lower dash panels to expose the actuator housing.
- Unplug the electrical connector and remove fasteners securing the actuator.
- Replace with the new unit, secure fasteners and reconnect the connector.
- Reassemble trim panels and reconnect the battery.
On some vehicles the actuator will self-calibrate after power-up; on others a simple cycle of the climate controls (or ignition cycles) is sufficient. If symptoms persist, check for obstructions or damaged flap linkages inside the HVAC box.
Installation Recommendations
- Disconnect the battery before starting work and follow manufacturer repair procedures to prevent damage and ensure safety.
- Inspect the HVAC housing and flap mechanisms for broken plastic tabs or debris before installing the new actuator.
- Fit the actuator in the correct orientation and avoid forcing gear engagement; stripped gears are a common secondary failure.
- Use proper trim tools to avoid damaging panels and fasteners during removal.
Why This Part Fails
Heater servo motors commonly fail due to wear of the small plastic gears, long-term exposure to heat and humidity, contamination from debris or liquids in the HVAC casing, or mechanical overload when flaps or linkages are broken. Electrical connector corrosion and intermittent wiring faults can also cause loss of function or erratic movement.
Why Choose This Part
Whether you are a professional technician or repairing your vehicle at home, this direct-fit heater servo motor offers a cost-effective way to restore climate control function for Citroën C4 II and Peugeot 308 T7 models. Searchable by OEM numbers T1002120V and 6479E7 for quick identification in parts catalogs and service listings.
