Description
Overview
The Denso Heater Servo Motor EAB251 6447WZ (A 21200500) is a direct-fit HVAC actuator designed for Citroën C4 Picasso models. It controls the heater and air distribution flaps to deliver precise cabin temperature and airflow distribution for improved comfort.
Product Details
This used unit has been carefully tested and is ready for installation, offering a cost-effective alternative to a brand-new replacement. It restores reliable operation of the heating and ventilation system so your vehicle remains comfortable in all seasons.
Technical Information
Manufacturer: Denso
Model: Citroën C4 Picasso
Product Codes: EAB251, 6447WZ
Other Numbers: A 21200500
Compatibility
Direct fitment for Citroën C4 Picasso. It may also be compatible with other PSA Citroën/Peugeot vehicles that use the same OEM references; always verify part numbers (EAB251, 6447WZ, A 21200500) against your vehicle before ordering.
Installation And Maintenance
Typical replacement requires disconnecting the vehicle battery, removing lower dash panels or the glovebox to access the HVAC unit, unplugging the electrical connector, removing mounting screws, and fitting the new servo. Reconnect and test all HVAC positions. Professional installation is recommended to ensure correct calibration and to avoid damage.
Common Failure Modes
Failures are commonly caused by worn internal gears, motor burnout, faulty position sensors, water ingress, or debris accumulation. Symptoms include stuck flaps, incorrect temperature blend, slow response, or unusual noises from the dash.
Why Choose This Part
A practical and economical replacement that restores proper HVAC function. Using an OEM-equivalent Denso servo helps ensure reliable airflow control and longevity. Add this part to your cart to keep your Citroën C4 Picasso comfortable year-round.
