Description
Heating and manual air conditioning control for CITROËN C1 and PEUGEOT 107 up to 2014. With control rods.
Upgrade or repair your vehicle’s climate control with this genuine-style manual HVAC controller designed for Citroën C1 and Peugeot 107 models produced up to 2014. Ideal for professional mechanics and DIY enthusiasts, this unit replaces the factory heater and manual air conditioning controller and is often searched by product codes 55900-0H040 and 55900-040. The control comes with mechanical link rods (control cables) that operate flaps and temperature/airflow selectors — a direct-fit replacement for worn or broken dashboard controllers.
Function And Benefits
The unit manages temperature selection, airflow distribution and fan speed for vehicles equipped with manual climate control. Mechanical control rods transmit selector movements to internal flaps and blend doors, providing reliable, tactile operation without requiring complex software configuration. Replacing a faulty control restores full manual control of cabin temperature and ventilation, improving comfort and driving safety.
How To Replace
- Remove the necessary dashboard trim panels to access the HVAC control panel (refer to vehicle repair manual for exact trim removal points).
- Disconnect the electrical connector and carefully release the control rods from their levers — note rod routing and clip positions for reassembly.
- Unfasten the retaining screws and remove the old control unit.
- Install the replacement unit, secure with screws, reconnect the control rods and electrical connector, and reassemble trim panels.
- Test all functions (fan speeds, temperature slider, airflow direction) before finishing. Adjust rod end positions if necessary to ensure accurate flap movement.
Technical Information
- Manufacturer: Stellantis / Citroën / Peugeot
- Model: Citroën C1, Peugeot 107 (up to 2014)
- Product Codes: 55900-0H040, 55900-040
- Additional Numbers: 6452P6, 6451SG, 6451SJ, 6451SH
Installation Recommendations
- Disconnect The Battery Before Starting Work To Avoid Short Circuits And Protect Electrical Components.
- Keep Track Of Control Rod Routing And Clips; Incorrect Reconnection Can Lead To Misadjusted Flap Positions.
- Handle Plastic Tabs And Rod Ends Carefully — They Are Common Break Points During Removal.
- After Installation, Verify Full Range Of Motion For All Controls And Check That Airflow And Temperature Respond Correctly.
Common Failure Causes
Manual climate controllers on these models commonly fail due to broken plastic levers, worn or detached control rods, and internal potentiometer or switch wear from long-term use. Exposure to heat and repeated mechanical stress can cause clips and sliders to crack or lose precision, resulting in stuck flaps, non-responsive temperature control or intermittent fan speed operation.
Choose this replacement if your climate controls are stiff, unresponsive, making noise, or if mechanical linkages are broken. Properly fitted, the unit restores reliable manual control of your vehicle’s heating and ventilation system.
