Description
Air conditioning pipe for Citroën C4, C4 Picasso and Peugeot 307, 3008 with 1.6 HDi engine.
Product Description
High-quality air conditioning pipe designed for Citroën and Peugeot models with the 1.6 HDi diesel engine. This refrigerant line connects key components of the A/C system and ensures reliable flow and sealing of refrigerant and oil. Built to OEM-compatible dimensions and fittings, it replaces worn or damaged original pipes to restore correct cooling performance and prevent leaks.
Why Choose This Part
- Direct fit for common Citroën/Peugeot A/C layouts — reduces installation time in the workshop.
- Compatible with OE connection types and sealing interfaces for dependable leak-free operation when fitted with new O-rings.
- Cost-effective spare for garages and experienced DIY mechanics performing air conditioning repairs on 1.6 HDi models.
Function And Symptoms Of Failure
The air conditioning pipe routes refrigerant between components such as the compressor, condenser, evaporator and receiver/drier. If the pipe is cracked, corroded or the fittings lose their sealing capability, symptoms include reduced cooling performance, visible oil or refrigerant leaks, and audible hissing from the system. Leaks also allow moisture and air into the circuit, which can cause further component damage and poor climate control operation.
How The Part Is Replaced
- Recover the refrigerant using certified A/C service equipment (only by qualified personnel).
- Remove protective covers and disconnect any brackets or clips securing the pipe.
- Carefully loosen and remove A/C fittings; replace all associated O-rings with the correct size and lubricant compatible with the system refrigerant oil.
- Install the new pipe, secure clamps and brackets to original positions, and torque fittings to manufacturer recommendations where available.
- Perform a pressure leak test, evacuate the system to remove moisture/air, then recharge with the correct refrigerant and oil volume.
- Carry out a final leak check and verify A/C performance on the vehicle.
Installation Recommendations
- Recommended To Be Performed By A Workshop Or Experienced Technician With Proper A/C Service Tools.
- Always Recover Refrigerant Before Any Work And Use Correct Refrigerant/Oil Types During Recharge.
- Replace O-Rings And Sealing Washers At Every Joint To Ensure A Reliable Seal.
- Inspect Adjacent A/C Components (Compressor, Condenser, Receiver/Drier, Expansion Valve) For Damage Or Contamination When A Leak Occurs.
- Use New Mounting Clips/Brackets If Originals Are Corroded Or Damaged To Prevent Vibration And Chafing.
Most Common Failure Reasons
- Corrosion From Road Salt And Moisture Leading To Pinhole Leaks.
- Mechanical Damage Due To Road Debris Or Improper Handling During Repairs.
- Ageing And Hardening Of O-Rings Or Seals Causing Loss Of Tightness At Connections.
- Vibration And Rubbing Against Adjacent Components Causing Abrasion Over Time.
- Contamination Of The System (Debris Or Moisture) Leading To Accelerated Wear.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: Citroën C4, Citroën C4 Picasso, Peugeot 307, Peugeot 3008 (1.6 HDi)
- Product Codes: 9656859180, 6477D4
- Other Numbers: 9650200980, 6460LZ, 6460XP
Fitment Notes
Designed for vehicles equipped with the 1.6 HDi engine as listed above. Verify visual match with the original pipe and connection types prior to installation. This part is intended for direct replacement where the routing and fittings correspond to the original equipment layout.
Additional Tips
- After installation, run the A/C system until stable operating pressures and temperatures are achieved to confirm proper function.
- If system contamination is suspected (e.g., compressor failure), flush the refrigerant circuit or replace affected components to avoid premature failure of the new pipe.
