Description
Air Conditioning Pipe For Citroën C2 And C3 Vehicles.
This air conditioning pipe (OE numbers 9680121580 / 647794) is a direct-fit replacement designed for Citroën C2 and C3 platforms. Ideal for professional workshops and experienced DIY mechanics, the line restores proper refrigerant flow between components of the A/C system and helps eliminate leaks, poor cooling performance and pressure drops. Commonly listed under part numbers 9680121580 and 647794, this AC pipe is compatible with Stellantis group applications and may appear on Citroën/Peugeot parts listings.
Function And Benefits
The pipe conveys refrigerant between the condenser, evaporator, receiver-drier (or accumulator) and compressor, maintaining system pressure and enabling efficient heat exchange. A properly sealed and routed pipe prevents refrigerant loss and keeps the compressor from running dry. Benefits include:
- Direct OE-fit Replacement For Easy Installation
- Restores Correct Refrigerant Flow And System Pressure
- Reduces Risk Of Leaks And Improves Cooling Performance
- Compatible With Typical R134a Systems Found On These Models
Technical Information
- Manufacturer: Stellantis / Citroën
- Model: Citroën C2, Citroën C3 (Including C3 Pluriel Where Applicable)
- Product Codes: 9680121580, 647794
- Other Numbers: NFP (as Found On Some Listings)
Recommended Installation
Replacement Requires Professional A/C Service Equipment. Typical installation steps:
- Recover Refrigerant With Approved Recovery Machine Before Any Work.
- Disconnect Battery For Safety If Recommended By Vehicle Manufacturer.
- Remove Any Obstructing Components To Access The Pipe (Brackets, Splash Shields).
- Undo A/C Fittings Carefully, Replace All O-Rings/Seals With New Ones Lubricated With The Correct PAG/POE Oil.
- Install The New Pipe, Secure Brackets And Torque Fittings To Manufacturer Specifications.
- Perform Vacuum Test And Leak Check After Installation.
- Recharge System With Correct Type And Amount Of Refrigerant Per Vehicle Specification (Typically R134a For These Models) And Measure Oil Level If Required.
Why This Part Fails
Air conditioning pipes typically last many years but are prone to failure for several reasons:
- Corrosion From Road Salt Or Moisture Leading To Pinholes Or Cracks.
- Mechanical Damage From Road Debris Or Improper Mounting (Chafing/Rubbing).
- Age-Related Deterioration Of O-Rings And Seals Causing Slow Leaks.
- Vibration-Induced Fatigue At Fittings Or Bends.
Leaks Often Present As Reduced Cooling Performance, Visible Oil Around Fittings, Or Low System Pressures. Replace The Pipe When Any Leak Or Physical Damage Is Found.
Practical Tips For Mechanics And DIYers
- Always Replace Associated O-Rings And Inspect Mounting Clips/Brackets.
- Use Correct Refrigerant And Oil Specified For The Vehicle—Refer To Service Manual For Quantities.
- After Replacement, Perform A Pressure And Leak Test Before Final Reassembly.
- Keep OE Part Numbers Handy (9680121580 / 647794) For Faster Identification And Ordering.
This AC pipe is a cost-effective way to restore air conditioning performance on Citroën C2 and C3 vehicles when the original line shows leaks or damage. Suitable for technicians and competent DIYers familiar with A/C service procedures.
