Description
Air conditioning pipe for Citroën C4 and Peugeot 307 with 1.4 16V, 1.6 16V and 2.0 16V engines.
This air conditioning pipe is a direct-fit replacement for Citroën C4 and Peugeot 307 models and helps restore correct refrigerant flow and system pressure. Commonly searched under part numbers such as 9657451280, 9650628180, 9647878780 or manufacturer code 6460QL, this pipe is intended for professional garages and experienced DIY mechanics who service PSA cooling systems. Installing the correct pipe prevents leaks, improves cooling performance and avoids compressor damage caused by refrigerant loss or contamination.
Key Benefits
Reliable fitment for Citroën C4 and Peugeot 307. Reduces downtime during AC repairs by matching OEM routing and connection points. Ideal for replacing corroded, cracked or mechanically damaged pipes to restore efficient air conditioning operation.
How It Works
The pipe transports refrigerant between components of the air conditioning circuit (for example between condenser, evaporator and compressor) and maintains the required pressure and flow. Proper sealing at connections and intact pipework are essential to prevent refrigerant loss and moisture ingress, which impair cooling performance and can damage system components.
Technical Information
- Manufacturer: Stellantis (Citroën/Peugeot)
- Model: Citroën C4; Peugeot 307
- Product Codes: 9657451280, 9650628180, 9647878780
- Additional Numbers: 6460QL
Replacement Procedure (Overview)
- Recover Refrigerant: Evacuate and recover refrigerant using certified recovery equipment before opening the system.
- Access Pipework: Remove any obstructing components (panels, brackets) to reach the defective pipe.
- Disconnect Connections: Release pipe fittings and clamps. Replace O-rings and seals at each connection.
- Install New Pipe: Fit the new pipe in the OEM routing, secure clamps and fasteners to specified positions.
- Leak Test And Evacuate: Perform a vacuum and leak test, then recharge the system to the correct refrigerant and oil specification.
- Functional Check: Run the AC system to verify pressures, cooling performance and absence of leaks.
Mounting Recommendations
Always Recover Refrigerant With Appropriate Equipment And Follow Local Regulations. Replace All O-Rings And Seals With New, Lubricated Versions To Ensure Proper Sealing. Use Correct Refrigerant Type And Oil Amount According To Manufacturer Specifications. Perform A Leak Test After Installation And Evacuate The System To Remove Moisture. If You Are Not Qualified To Handle Refrigerant, Have The Procedure Performed By A Certified Technician.
Most Common Causes Of Failure
Pipes Fail Most Often Due To Corrosion From Road Salt Or Moisture, Mechanical Damage From Road Debris Or Contact With Other Components, Degraded Seals At Fittings, Or Poor Previous Repairs. Leaks Allow Moisture And Contaminants Into The System, Which Can Lead To Compressor Damage And Reduced Cooling Efficiency.
Who Should Fit This Part
Suitable For Professional Mechanics And Skilled DIY Enthusiasts Familiar With Automotive Air Conditioning Systems. Because Refrigerant Handling Requires Certification And Specialized Equipment, Recovery, Evacuation And Charging Steps Should Be Performed By Qualified Personnel.
