Description
Air Conditioning Pipe Citroën C8 Peugeot 807 For Engine 2.2 HDi 94 kW 4HW
Direct-fit air conditioning pipe for Citroën C8 and Peugeot 807 with the 2.2 HDi 94 kW (engine code 4HW). This A/C line restores refrigerant flow between the compressor and evaporator/receiver components, helping to recover full cooling performance. Ideal for professional workshops and experienced DIY mechanics searching by part numbers 6460V5 or 6460P6.
Function and Application
The pipe is part of the vehicle air conditioning refrigerant circuit. It routes high-pressure or low-pressure refrigerant between A/C components (compressor, condenser, receiver-drier, evaporator) and ensures sealed, vibration-resistant connections. Correct fit and sealing are essential to prevent refrigerant loss, moisture ingress and reduced cooling efficiency.
Replacement Procedure
- Recover Refrigerant Safely: Evacuate and recover refrigerant using certified A/C service equipment in accordance with regulations.
- Disconnect Battery: Follow manufacturer safety procedures and disconnect the battery if recommended for access and safety.
- Access The Line: Remove any engine covers, brackets or obstructing components to reach the pipe route between compressor and evaporator/condenser area.
- Remove Fasteners And Fittings: Carefully disconnect hose clamps, O-ring sealed fittings or flared connections. Mark connection positions if needed.
- Replace Seals: Always replace O-rings/seals with new ones of the correct material (typically HNBR or equivalent) and apply refrigerant oil to ensure sealing.
- Install New Pipe: Fit the replacement pipe, torque clamps and fittings to manufacturer specifications and secure any brackets to prevent chafing.
- Leak Test And Evacuate: Perform a leak test, evacuate the system to the correct vacuum level, then recharge with the correct type and amount of refrigerant and oil.
- Functional Test: Start engine, run A/C to verify pressure, temperature and absence of leaks. Recheck fittings after the system reaches operating temperature.
Lifespan And Common Failure Causes
Typical service life depends on vehicle use and environment. A/C pipes can last many years but most failures occur due to:
- Corrosion At Metal-To-Metal Joints Or Brackets, Especially In Salted Road Environments.
- Mechanical Damage From Impact Or Chafing Against Other Components.
- Deterioration Of O-Rings And Sealing Surfaces Over Time, Leading To Slow Leaks.
- Chemical Degradation From Oil/Contaminants Or Excessive Heat Cycling.
- Incorrect Installation Or Over-Tightening Causing Deformed Fittings.
Technical Information
- Manufacturer: Stellantis / Citroën / Peugeot
- Model: Citroën C8, Peugeot 807
- Product Codes: 6460V5, 6460P6
- Additional Numbers: For Engine 2.2 HDi 94 kW (Engine Code 4HW)
Installation Recommendations
Use proper A/C service equipment for refrigerant recovery and charging. Replace all O-rings and add the correct type and amount of PAG/ester oil specified for the system. Ensure brackets are secure and the pipe cannot contact moving parts or hot exhaust components. After installation, perform a vacuum hold test to confirm system tightness before recharging.
Why This Part Fails Most Often
Most common failure is loss of refrigerant due to leaking seals or damage at connection points. Corrosion and physical damage from road debris or improper routing are frequent causes. Preventive inspection of lines, brackets and O-rings during regular A/C service reduces the risk of unexpected failure.
