Description
BEHR heater servo motor for PEUGEOT 3008 and 5008 first generation. The gear section can be removed and only the motor can be used.
This BEHR heater servo motor is a quality used spare part designed for PEUGEOT 3008 I and 5008 I HVAC systems. Ideal for professional workshops and DIY mechanics, this actuator restores precise control of airflow and temperature distribution in the passenger compartment. Commonly searched by product codes such as P1975001, EAD516 or 6479A9, the unit is a practical replacement when the original flap movement becomes noisy, intermittent or inoperative. The removable gear section gives flexibility: you can reuse the motor alone if the plastic gear set is damaged.
Technical Information
- Manufacturer: BEHR
- Model: Peugeot 3008 I; Peugeot 5008 I (first generation)
- Product Codes: EAD516; P1975001
- Other Numbers: P1975001 U b 43; P1975001 U a 43; 6479A9; 6479.A9
Function
The servo motor actuates the HVAC box flaps (blend/air distribution flaps) to control cabin temperature and airflow direction as commanded by the climate control unit. Precise movement of the actuator ensures correct mixing of hot and cold air and proper vent selection (windshield, face, feet).
Typical Failure Causes
- Worn or broken plastic gear teeth — the most frequent cause; gears can strip with age and repeated use.
- Internal wear of the electric motor or brushes leading to intermittent operation or no movement.
- Moisture ingress or contamination inside the HVAC box causing seizure or increased friction.
- Corroded or loose electrical connector resulting in poor supply or intermittent signals.
- Mechanical obstruction in the flap mechanism that overloads and damages the servo.
Installation And Replacement
Access to the heater servo motor is typically gained from behind the glove box or under the dashboard on the passenger side. General replacement steps:
- Remove trim/glove box to reach the HVAC housing.
- Unplug the electrical connector and remove the fixing screws retaining the actuator.
- Remove the actuator. If reusing the motor only, carefully separate the removable gear section as required.
- Install the new unit, secure screws and reconnect the electrical connector.
- Before reassembling trim, verify full range of movement by operating climate controls; check for smooth, complete travel and absence of unusual noise.
Mounting Recommendations
- Disconnect the negative battery terminal before starting work to avoid short circuits and protect vehicle electronics.
- Handle plastic gear teeth carefully — avoid forcing the mechanism during removal or installation.
- Ensure connectors are clean and fully seated; apply dielectric grease if appropriate to prevent corrosion.
- If reusing the motor without the gear section, make sure mating parts align precisely to prevent premature wear.
- After installation, run the HVAC through all modes and temperatures to confirm correct operation.
Reason Why The Part Fails Most Often
The most common failure is mechanical damage to the plastic gears — teeth wear or breakage — caused by normal aging, debris in the HVAC box, or repeated hard stops. Once gears fail, the motor may run but cannot move the flaps, producing noise or no airflow change. Electrical degradation and moisture-related issues are secondary causes.
