Description
Air Conditioning Pipe CITROËN C-ELYSEE PEUGEOT 301 1.2i
Low-pressure Pipe Only
This low-pressure air conditioning pipe is intended for Citroën C-Elysée and Peugeot 301 vehicles with the 1.2i petrol engine. It replaces the low-pressure line that returns refrigerant gas to the compressor and includes connection points for the service port and rubber hose fittings. The part is identified by OEM number 9676996380 and is commonly sought by mechanics and DIY technicians performing A/C repairs or line replacements.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: Citroën C-Elysée; Peugeot 301 — 1.2i
- Product Codes: 9676996380
- Other Numbers: Not Listed / Not Available
Function And Characteristics
The low-pressure A/C pipe carries refrigerant vapor from the evaporator outlet back to the compressor inlet (suction side). It typically consists of metal tubing with rubber hose sections and O-ring sealed connections. Its role is critical for maintaining correct refrigerant flow and system pressure, enabling efficient cooling performance.
Replacement Procedure
- Recover Refrigerant: Use certified refrigerant recovery equipment to evacuate the system safely before any work.
- Access And Remove: Remove any trim or engine covers necessary to reach the pipe. Carefully loosen and disconnect the fittings at the evaporator side and compressor side.
- Replace Seals: Always replace O-rings and sealing washers with correctly sized new parts, lubricating them with the appropriate A/C compressor oil.
- Install New Pipe: Fit the new low-pressure pipe, ensuring correct alignment to avoid chafing. Tighten fittings to manufacturer torque specifications.
- Pressure Test And Evacuate: Pressure-test the system (nitrogen) for leaks, then evacuate with a vacuum pump to remove moisture and air.
- Recharge And Check: Recharge the system with the refrigerant type and quantity specified by the vehicle manufacturer. Run the A/C system and verify pressures, temperatures and absence of leaks.
Installation Recommendations
- Handle Refrigerant Only With Proper Equipment: Refrigerant recovery, evacuation and charging should be performed with certified tools and in accordance with local regulations.
- Replace O-Rings And Lubricate: Always fit new O-rings and apply the correct type of lubricant to prevent leaks and premature failure.
- Check Adjacent Components: Inspect the receiver/drier/accumulator and expansion valve for contamination; consider replacement if the system was significantly contaminated or moisture ingress is suspected.
- Protect Against Chafing: Ensure brackets and routing prevent contact with moving parts or sharp edges; use protective sleeves where necessary.
- Final Checks: After charging, verify system pressures, evaporator outlet temperature and listen for unusual noises from the compressor.
When To Replace
Low-pressure A/C pipes are durable but can require replacement after collision damage, corrosion, or when leaks develop at fittings or hoses. O-ring aging or damage during service is a common reason for later leaks if seals are not renewed at replacement.
Why This Part Fails Most Often
- Corrosion Of Metal Tubing: Road salt and moisture can corrode fittings and thin-wall sections leading to leaks.
- O-Ring Deterioration: Rubber seals harden with age and allow refrigerant to escape at connection points.
- Mechanical Damage Or Chafing: Incorrect routing or contact with other components can wear through the pipe or hose sections.
- Accident Damage: Front-end or underbody impacts commonly deform or crack A/C lines.
- Contamination In System: Debris or moisture can accelerate failure of components and seals.
By following correct service procedures—recovering refrigerant, replacing seals, pressure testing and properly evacuating and recharging the system—you minimize the risk of leaks and ensure reliable A/C operation after fitting this low-pressure pipe.
