Description
Air Conditioning Pipe for Peugeot 308, 3008, 5008, RCZ and Citroën C4 and C4 Picasso
This air conditioning pipe is an OEM-compatible replacement designed for Peugeot and Citroën models listed below. Supplied with original reference numbers 9658227580, 9653227580 and 647736, it restores the sealed refrigerant circuit between A/C components to ensure reliable cooling performance. Ideal for professional workshops and experienced DIY mechanics, the part matches the original connections and routing to simplify installation and reduce downtime.
Technical Information
- Manufacturer: Stellantis / Citroën / Peugeot
- Model: Peugeot 308, Peugeot 3008, Peugeot 5008, Peugeot RCZ, Citroën C4, Citroën C4 Picasso
- Product Codes: 9658227580, 9653227580
- Additional Numbers: 647736
Key Features and Function
The pipe carries refrigerant between the A/C compressor, condenser, evaporator and receiver/drier (depending on the exact routing used on the model). It uses OEM-style fittings and sealing rings to create a pressure-tight connection suitable for modern refrigerants. Proper sealing prevents loss of refrigerant and lubricant, maintains system pressure and ensures efficient heat exchange for consistent cabin cooling.
Installation Recommendations
- Recover refrigerant from the system using certified recovery equipment and comply with local regulations.
- Replace all sealing rings (O-rings) with new ones of the correct specification and lubricate them with the appropriate PAG oil before assembly.
- Clean mating surfaces and inspect fittings for corrosion or damage; replace associated parts as needed.
- Torque fittings to the manufacturer’s specification — if unknown, consult factory manuals or technical data.
- Evacuate the system with a vacuum pump, perform a leak test, then recharge with the correct type and amount of refrigerant and oil.
- Perform an operational check for correct pressures and cooling performance after installation.
- Use personal protective equipment and follow safe workshop procedures when working with pressurized refrigerant.
Why This Part Most Often Fails
- Corrosion and galvanic attack in the engine bay leading to pinhole leaks.
- Age-related deterioration of rubber sections and O-rings causing slow or sudden leaks.
- Mechanical damage from road debris, improper handling or contact with moving components.
- Contamination from a failed compressor (metal particles) that can clog lines and connectors.
- Improper installation or reused seals resulting in poor sealing and refrigerant loss.
Recommended When To Replace
Replace the pipe when any leak is detected, after compressor failure that may have introduced debris into the system, or when physical damage/corrosion is visible. It is good practice to renew seals and inspect the entire A/C circuit during any major service to prevent repeat failures.
Suitable for both professional service environments and skilled DIY repair. Refer to vehicle repair manuals for model-specific instructions and torque figures to ensure correct, long-lasting installation.
