Description
Heating and manual air conditioning linkage rod set for CITROEN C1 and PEUGEOT 107 vehicles up to 2014
Part description
Used heating and manual air conditioning linkage rod set for Citroën C1 and Peugeot 107 vehicles, used to mechanically transfer movement from the controls to the relevant heating and ventilation mechanisms. It is a suitable choice when repairing controls that do not respond correctly, have excessive play, or stick due to a damaged linkage rod or its mounting.
When selecting, compare in particular the product numbers 6451SG, 6451SJ and 6451SH and the design of the original linkage rods. It is specified for vehicles up to 2014 with manual air conditioning; do not automatically substitute it for parts for a different control configuration.
Technical information
- Manufacturer: not specified; the source materials list the designation Stellantis / CITROEN / PEUGEOT.
- Model: Citroën C1, Peugeot 107.
- Part type: heating and manual air conditioning linkage rod set.
- Year range: up to 2014 according to the source materials.
- Condition: used part.
- Other numbers: not specified.
Product codes
- Product codes: 6451SG, 6451SJ, 6451SH.
- Models: Citroën C1, Peugeot 107.
Installation recommendations
The following procedure generally applies to this type of mechanical linkage rod. Exact access to the controls, how to release the clips, and any adjustment required depend on the specific model and vehicle configuration. Follow the manufacturer’s service procedure.
1) Before installation
- Compare the part numbers, length and shape of the linkage rods, end fittings, and mountings with the removed parts.
- Check that the used linkage rods are not deformed, the end fittings are not cracked, and any sheaths or Bowden cables are not damaged.
- Check for smooth movement without applying force. Also check the freedom of movement of the mechanism being operated to ensure that an existing fault does not damage the newly installed parts.
- Before removal, take photos of the linkage rod routing, how they are connected, and the position of the clips.
2) Required tools and materials
- Standard hand tools appropriate for the fasteners used.
- Plastic trim tools for careful panel removal and suitable pliers for working with clips.
- A flashlight, cleaning cloth, and materials for marking individual linkage rods.
3) Step-by-step installation procedure
- Park the vehicle safely, secure it against movement, and switch off the ignition.
- If access requires disconnecting electrical connectors, disconnect the battery according to the vehicle manufacturer’s instructions.
- Following the service procedure, gain access to the controls and linkage rod mountings. Release trim carefully without forcing it with a lever.
- Note the position of the controls and the mechanisms they operate. Mark each linkage rod to avoid mixing them up.
- Carefully release the clips and end fittings of the original linkage rods. Do not pull on a rod until its mounting is fully released.
- Remove the original linkage rods from their routing and compare them with the replacement set. Also check the condition of the mountings on the controls and the operated mechanism.
- Check the freedom of movement of the mechanisms without forcing them. If any mechanism sticks, first eliminate the cause of the resistance.
- Route the replacement linkage rods in the same way as the original ones, without sharp bends, twisting, or tension. If they have Bowden cable sheaths, seat them correctly in their holders.
- Connect the end fittings and secure all clips. If the design allows adjustment, make it according to the service procedure for the specific configuration.
- Before refitting the trim, slowly test the full range of control movement. Check that the linkage rods do not pop out or rub and allow the relevant positions to be reached without excessive resistance.
- Refit the removed parts, reconnect any electrical connections as directed by the manufacturer’s procedure, and carry out a final function check.
4) Post-installation checks and function verification
With the vehicle stationary, test the relevant control positions and check that the heating and ventilation respond accordingly. Check for smooth operation, secure mounting, and no unusual noises. Assess the effect of temperature changes only under appropriate operating conditions. Carry out any test drive only after the interior has been fully reassembled; the controls must not distract the driver.
5) Most common installation mistakes and how to avoid them
- Mixing up the linkage rods: before removal, mark their function and routing.
- An end fitting or sheath that is not properly secured: check all mountings while operating the control before refitting the trim.
- A sharp bend or pinching during trim installation: follow the original routing and check operation again after reassembly.
- Forcing movement against resistance: if a mechanism sticks, stop testing and check the routing and the mechanism being operated.
- Incorrect initial position: when connecting, maintain the relative position of the control and mechanism as specified in the service procedure.
Reasons why the part may become damaged
For this type of linkage rod, damage is generally associated with mechanical stress and increasing resistance in the mechanisms being operated. This is not a description of faults with the specific set offered for sale.
- Wear to end fittings and mountings from repeated use of the controls.
- Aging of plastic parts, which can cause clips to break or lose their secure fit.
- A seized mechanism and subsequent overloading of the linkage rod when the control is turned with excessive force.
- Incorrect routing of the linkage rod, sharp bends, or pinching following previous work.
- Careless removal, especially pulling on end fittings that are still secured.







