Description
Air Conditioning Pipe For Citroën C4 And Peugeot 307 With 1.4 16V, 1.6 16V And 2.0 16V Engines.
This replacement air conditioning pipe is designed for Citroën C4 and Peugeot 307 models equipped with 1.4 16V, 1.6 16V and 2.0 16V engines. Ideal for workshops and experienced DIYers, the part restores proper refrigerant flow between system components and helps recover original cooling performance. Frequently searched by OE and reference numbers, this item is a practical solution when leaks, corrosion or mechanical damage compromise the AC circuit.
Key Benefits
Direct-fit replacement for the original routing and connections, simplifying installation and reducing downtime. Built to withstand typical under-hood temperatures and vibrations, the pipe helps maintain system pressure and prevents refrigerant loss when installed with new sealing rings. Ideal for mechanics and competent DIY enthusiasts who perform air conditioning repairs and replacements.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot Applications)
- Model: Citroën C4, Peugeot 307
- Product Codes: 9657451280
- Additional Numbers: 9650628180, 9647878780, 6460QL
Function And Symptoms
The pipe carries refrigerant between major air conditioning components (compressor, condenser, evaporator and receiver/drier) and forms part of the high/low pressure circuit. Common symptoms of a failing pipe include reduced cooling efficiency, visible oil or refrigerant traces at joints, hissing sounds under pressure and loss of system pressure indicated by gauges.
Common Failure Causes
Typical reasons for pipe failure are external corrosion due to road salt and moisture, physical damage from impacts or engine-bay works, deterioration of O-rings and seals, and fatigue from continuous thermal cycling and vibration. Contaminants in the system (metal particles, moisture) can accelerate wear and block passages, reducing cooling performance.
Installation Recommendations
Recommended steps for safe and reliable replacement:
- Recover Refrigerant Using Proper Equipment: Always evacuate and recover refrigerant with certified recovery machines in accordance with local regulations before opening the AC circuit.
- Replace Seals And Receiver/Drier: Fit new O-rings (lubricated with correct PAG oil) at all reconnected fittings and consider replacing the receiver/drier/desiccant whenever the system has been opened to air.
- Check And Clean Adjacent Components: Inspect compressor, condenser and hoses for damage or contamination; remove debris to prevent premature failure of the new pipe.
- Evacuate And Recharge To Manufacturer Specification: Perform deep vacuum to remove moisture, leak test, then charge the system with the correct refrigerant type and specified mass/pressure.
- Test Under Operating Conditions: Verify pressures, listen for leaks and confirm cold-air delivery at idle and under load.
Maintenance And Lifespan
Service life depends on climate, driving conditions and maintenance. In normal conditions pipes can last many years, but exposure to salt, chemicals and mechanical damage shortens lifespan. Regular inspections during AC service help catch early signs of wear and avoid more costly compressor or evaporator damage.
Purchase And Search Tips
Customers often search using OE or reference numbers (e.g., 9657451280, 9650628180, 9647878780, 6460QL). Use these codes when looking for direct-fit pipes for Citroën C4 and Peugeot 307 to ensure fast identification of the correct replacement part.
