Description
BEHR heater servo motor for CITROEN and PEUGEOT cars
Heater servo motor BEHR 309370600 (PSA 6447.RX) – original used part for selected Citroën and Peugeot models. It is used to drive the heating/air conditioning dampers (mixing warm/cold air, distribution to the glass/legs, or recirculation) in the HVAC unit. Also searched for “heater damper actuator” or “blend door actuator”.
Main advantages
– Original BEHR (MAHLE) – exact function and durability as from the factory
– Verifiable match by numbers: 309370600, 6447RX (6447.RX)
– Suitable for selected Citroën C4, C5 II, C6 and Peugeot 307 II (depending on specific equipment)
– Solves problems with temperature regulation and air routing without the need to replace the entire heating unit
Vehicle compatibility
– Citroën: C4, C5 II, C6
– Peugeot: 307 II
Note: PSA uses multiple types of servo motors depending on flap position and type of air conditioning (manual/automatic, single zone/dual zone). Always compare part numbers and connector to your original part or verify by VIN before purchase.
Part numbers and markings
– BEHR: 309370600
– PSA Citroën/Peugeot: 6447RX (6447.RX)
– Variant codes/position markings may appear on the body of the part: CE, CD, AD (different according to the location of the servo in the HVAC unit)
Typical manifestations of the defect that this part solves
– Clicking from the dashboard after turning on the ignition or changing the temperature setting
– It is not possible to change the temperature continuously, it blows constantly cold or constantly warm air
– Incorrect direction of the air flow (e.g. does not go to the windshield or only to the legs)
– Random “jumping” flaps or air conditioning error messages
Technical information
– Power supply: 12 V DC
– Design: electric HVAC damper actuator with integrated transmission and position electronics
– Connector: original PSA (check the match of shape and pins with your part – compare according to the photo/connector)
– Location: depending on the car and the equipment, it can be used for the mixing, distribution or recirculation valve
Condition and provenance of the piece
– Used original part from disassembly
– Visual and functional condition corresponds to normal wear; we recommend comparing the connector, mounting and part numbers to your original servo
Assembly tips
– Disconnect the battery before disassembly
– Compare the position of the shaft and the stops, assemble without violence to avoid damage to the gears
– After installation, initialize/calibrate the servos (recommended via PSA diagnostics – Lexia/DiagBox) so that the A/C learns the extreme flap positions
– Check whether the damper itself in the heating unit is not stiff; excessive resistance may damage the new servo drive
How to verify compliance
– The fastest is to compare the OE numbers: 309370600 and 6447RX with the numbers on your old part
– Check connector shape and pitch/mount type
– In case of uncertainty, send us the VIN – we will verify compatibility for you
Search keywords
heater servo motor BEHR 309370600, PSA 6447RX, heater damper servo motor Citroën C4 C5 C6, Peugeot 307 II, air conditioning damper actuator, HVAC damper motor Citroen Peugeot, 6447.RX
