Description
Air conditioning pipe for Citroën C2 and C3 1.4 HDi and 1.6 HDi. This is a used, fully sealing part.
High-quality replacement AC pipe originally fitted on Citroën C2 and C3 diesel HDi engines. Designed for mechanics and competent DIY enthusiasts who service vehicle air conditioning systems, this component restores a tight refrigerant circuit and prevents leaks that reduce cooling performance. The part is commonly searched by OEM and aftermarket numbers, which helps technicians find the correct item quickly.
The pipe is suitable for direct replacement where the original connection types and mounting points match the vehicle. Being a used but fully sealing piece, it offers a cost-effective option for repairs while maintaining proper function when installed with fresh sealing rings and correct refrigerant oil.
Technical Information
- Manufacturer: Stellantis / Citroën / Peugeot
- Model: Citroën C2, Citroën C3 (including C3 Pluriel) – 1.4 HDi and 1.6 HDi engines
- Product Codes: 9650823180, 9680122380
- Other Numbers: 9681913580, 6460GQ, NFP
Compatibility & Fitment
This pipe is intended for Citroën C2 and C3 models with 1.4 HDi and 1.6 HDi engines. Always compare the part numbers and connection types with the original pipe on the vehicle before ordering. The same pipe is often referenced by the OEM codes listed above, which improves searchability and ensures correct fit when those numbers match.
How To Replace
- Recover Refrigerant: Safely evacuate and recover refrigerant with approved equipment before opening the system.
- Access: Locate the damaged pipe in the engine bay or beneath the vehicle; some installations require removal of auxiliary components or undertrays for access.
- Disconnect: Loosen the fittings and remove any retaining clips or brackets. Keep bolts and clips organized for reassembly.
- Seal Replacement: Fit new O‑rings/seals at all connections and lubricate with the manufacturer‑specified PAG oil to ensure correct sealing.
- Refit and Test: Reinstall the pipe, torque fittings to manufacturer recommendations where available, pressure test the system for leaks, perform a vacuum to remove moisture, then recharge with the correct refrigerant and oil quantities.
Installation Recommendations
- Use new O‑rings of the correct size and type at every connection; reused seals commonly cause leaks.
- Lubricate O‑rings with the specified refrigerant oil to prevent pinching and ensure sealing.
- Replace any corroded clamps, brackets or damaged lines found during the repair to avoid repeat failures.
- Perform a pressure/leak test and a vacuum dwell test before recharging the system to ensure long-term integrity.
- Handle refrigerant only with proper equipment and in accordance with local regulations; disposal and recovery require certified procedures in many jurisdictions.
Common Failure Causes
AC pipes on older C2/C3 models typically fail due to a combination of corrosion (especially in regions with road salt), mechanical damage from impacts or chafing against other components, and age‑related deterioration of seals and O‑rings. Vibration and pressure cycling in the A/C system can also fatigue fittings or thin-wall sections over time. Replacing the pipe together with seals and addressing any adjacent damaged components reduces the risk of repeat leaks.
Why Choose This Part
This used, fully sealing pipe offers a practical repair option for technicians looking to restore air conditioning performance without the lead time or cost of a brand‑new OEM line. When fitted correctly with new seals and properly tested, it reliably restores the refrigerant circuit and cooling efficiency on compatible Citroën HDi models.
Keywords for search: Citroën C2 AC pipe, Citroën C3 air conditioning hose, 9650823180, 9680122380, 9681913580, 6460GQ, HDi AC pipe replacement.
