High-quality heating control unit compatible with first-generation Citroën C1 and Peugeot 107. Designed for mechanics and competent DIYers, this unit restores reliable control over heater flaps and temperature distribution in the passenger compartment. Supplied complete with its control cables and with cable end stops intact, it is ready for direct installation and replacement of worn or broken dashboard heater controls. Common search terms include Citroën C1 heater control, Peugeot 107 heater control, HVAC heater knob assembly, and the OEM product codes listed below.

Technical Information

• Manufacturer: Stellantis (Citroën / Peugeot)
• Model: Citroën C1 (First Series), Peugeot 107 (First Series)
• Product Codes: 55900-0H0010, 55900-0H011
• Additional Numbers: 55900-0H010, 6452P5, 6451SE

Function And Benefits

This heating control operates the HVAC cable system that selects airflow direction and controls heater flap positions. It provides a tactile and reliable interface for temperature and vent selection, using mechanical cable linkages rather than complex electronic actuators—an advantage for straightforward diagnostics and repair. Replacing a faulty control restores proper airflow selection, improves cabin comfort and prevents uncontrolled vent positions or rattling caused by broken internal plastics or frayed cables.

Replacement Procedure

• Disconnect the negative battery terminal before starting to avoid electrical faults or short circuits.
• Remove the necessary dashboard trim panels to access the heater control unit (usually lower center console trim and surrounding bezels).
• Note the routing and attachment points of the control cables. Release the cable ends from the levers, then unfasten the control unit mounting screws.
• Install the replacement unit in reverse order: secure the unit, attach and adjust the cables so they move smoothly without binding, then refit trim panels.
• Check all HVAC functions: mode selection, recirculation (if applicable), and that cables operate smoothly through their full travel.

Installation Recommendations

• Always disconnect the battery before removal and installation to prevent damage to electrical components and ensure safety.
• Handle plastic levers and cable end stops carefully to avoid breaking brittle parts—older plastic can be fragile.
• Lubricate cable sleeves lightly if they are dry, and ensure cables run without sharp bends or chafing points.
• Verify full range of motion after installation; if any binding or unusual resistance is detected, recheck cable routing and secure fastenings.
• Keep replacement parts and fasteners original or OEM-equivalent to maintain correct fit and function.

Why This Part Fails Most Often

• Mechanical Wear: Cable ends, plastic levers and internal detents wear over time, leading to slack, slipping or broken connections.
• Cable Damage: Frayed or seized control cables prevent smooth operation and are a frequent cause of faulty vent selection.
• Plastic Degradation: Heat cycles and UV exposure make plastic components brittle, causing snaps or loss of indexing accuracy.
• Contamination: Dirt and debris accumulated in the control assembly cause stiff movement and accelerated wear.

This heater control is an effective direct-fit replacement for vehicles listed above and is particularly useful for workshops and self-repairers seeking a durable mechanical solution to HVAC control faults. Check the product codes against the vehicle’s parts list when ordering to ensure correct fitment.