Description
Heater Servo Motor For Citroën C5, C6 And Peugeot 407, 607
High-quality replacement heater servo motor designed for climate control systems on Citroën and Peugeot models. This actuator controls air flap and blend door positions to regulate cabin temperature and airflow distribution. Ideal For Workshops And Do-It-Yourself Enthusiasts Searching By Part Number (EAD 552, 4puh-19e616-ab, 4puh-19e616-ac, 6447RJ). Reliable Fitment For Common Stellantis Platforms Used In Citroën C5 II, C6, Peugeot 407 And 607.
Key Benefits
Restores Precise Climate Control: Eliminates Erratic Airflow And Incorrect Temperature Mixing. Quiet Operation: Smooth Motor Drive Minimizes Rattles And Noise From The Dashboard. Direct Replacement: Designed To Match Original Mounting And Electrical Connector Layout For Easier Installation.
Technical Information
- Manufacturer: Stellantis (Citroën/Peugeot)
- Model: Citroën C5 II; Citroën C6; Peugeot 407; Peugeot 607
- Product Codes: EAD 552; 4puh-19e616-ab; 4puh-19e616-ac
- Other Numbers: 6447RJ
Function And Symptoms
The Heater Servo Motor Operates The Blend And Mode Flaps Inside The HVAC Box, Allowing The Climate Control Unit To Direct Airflow And Mix Hot And Cold Air For The Desired Cabin Temperature. Common Symptoms Of A Failing Servo Include Unresponsive Temperature Changes, Incorrect Air Distribution (e.g., Only Defrost Or Feet Vents Active), Clicks Or Grinding From Behind The Dashboard, And Intermittent Operation.
Why The Part Fails Most Often
Failure Is Typically Caused By Worn Plastic Gear Teeth, Deteriorated Motor Brushes, Or Internal Corrosion From Moisture. Excessive Force On Stiff Flap Mechanisms Or Foreign Debree Entering The HVAC Box Can Accelerate Wear. Age And Frequent Thermal Cycling In The HVAC System Also Contribute To Reduced Actuator Life.
How To Replace
Replacement Usually Requires Accessing The HVAC Box Behind The Glovebox Or Lower Dash Trim. Typical Steps:
- Disconnect Battery Before Starting Work.
- Remove Glovebox Or Necessary Trim Panels To Access The Actuator.
- Unplug Electrical Connector And Remove Fasteners Holding The Servo In Place.
- Swap The Unit, Refit Fasteners, Reconnect The Connector And Reassemble Trim.
- Perform Any Required HVAC Self-Calibration Through The Vehicle Controls If Applicable.
Estimated Labor Time: 0.5–2.0 Hours Depending On Model And Required Disassembly.
Installation Recommendations
- Use Proper Trim Tools To Avoid Damaging Panels And Clips.
- Verify Connector Pins Are Clean And Undamaged Before Reconnecting.
- If You Encounter Stiff Flaps, Inspect The HVAC Box For Obstructions Or Broken Linkages Before Fitting The New Servo.
- After Installation, Cycle The Climate System Through All Modes To Confirm Correct Operation.
Compatibility And Search Tips
Customers Often Search By Part Number—Include EAD 552, 4puh-19e616-ab, 4puh-19e616-ac And 6447RJ When Looking For This Actuator. Fitment Covers Citroën C5 II, Citroën C6, Peugeot 407 And Peugeot 607 Models That Use The Same HVAC Servo Configuration.
Additional Notes
This Unit Is Intended As A Direct Replacement For The Listed Models. For Complex Diagnostics Or If The Climate System Requires Coding/Calibration Beyond Basic Cycling, Consider Professional Service With Proper Diagnostic Equipment.
