Description
Air conditioning coolant pipe for CITROEN C5 II and PEUGEOT 407
Part description
This climate pipe (air conditioning coolant pipe) is intended for the repair of malfunctioning or leaking air conditioning. If you’re dealing with a refrigerant leak, line damage, or corrosion, ductwork replacement is often the fastest way to get your air conditioner back up and running without temporary repairs.
The part is suitable for Citroën C5 II and Peugeot 407 cars. When choosing, be guided mainly by the product codes listed below.
Technical information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: Citroën C5 II; Peugeot 407
- Other numbers: NFP (not specified)
Product codes
- Product codes: 9650885580, 6460LP
Installation recommendations
Generally/typically for air conditioning pipes, the exact procedure may vary depending on the specific design of the car and the routing of the air conditioning circuit. Below is a practical, safe procedure for replacing the refrigerant line.
1) Before assembly (checks)
- Compare the new part with the old one: shape, lengths, bends, grips and especially type and position of ends.
- Check that the contact surfaces and threads on the ends are not damaged.
- Inspect the piping for dents, cracks, and significant corrosion.
- Verify compliance by codes: 9650885580 / 6460LP.
2) Necessary tools and materials (in general)
- Normal set of wrenches/sockets, or socket wrenches for pipe couplings
- Screwdrivers / tools for removing covers and holders
- Clean rags, degreaser for cleaning contact surfaces
- New seals/O-rings for the respective connections (according to the design of the connections)
- Air conditioning service (vacuum/filling) – specialist equipment is typically required
3) Step-by-step assembly procedure
- Secure the vehicle against movement and allow the engine to cool.
- Have the coolant professionally extracted from the air conditioning circuit (do not drain uncontrolled).
- Get access to piping: remove covers/lines that prevent access (according to specific design).
- Clean the area around the connections so that dirt does not enter the circuit when disconnected.
- Gradually loosen the connections of the pipe and disconnect it from the relevant places (work sensitively so as not to damage the counterpart).
- Release the pipe from the holders/mounts and remove the old part.
- Clean the mating surfaces of the counters and check them (scratches, corrosion, deformation).
- Install new gaskets/O-rings (if used) and seat them correctly in the grooves.
- Place the air conditioning pipe in the original route, insert it into the holders and make sure that it is not under tension anywhere.
- Connect the ends, first grasp the connections “by hand” and only then tighten so as not to tear off the thread or distort the bearing surface.
- Check that the pipe does not rub against the surrounding parts anywhere and that it is properly secured in all fittings.
- Evacuate and then fill the air conditioning circuit with a service device and check for leaks.
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4) Post-assembly checks and test drive/function verification
- Verify that the air conditioner is cooling and the system is holding pressure (check for leaks).
- Check that the pipe does not touch or click on the bodywork or other parts when the engine is running/vibrating.
- After a short ride, visually check the connections and fitment again.
5) The most common assembly mistakes + how to avoid them
- Reusing old gaskets → typically leads to leakage; use new gaskets corresponding to the design of the joint.
- Impurities in the circuit when disconnecting → clean around the connections before dismantling and protect the open ends.
- Poor seating of the pipe (tension, contact with the environment) → pay attention to the correct route and fastening in all fittings.
- Damage to threads/contact surfaces → first screw the connections by hand, tighten with feeling.
Reasons why the part is damaged
- Corrosion of pipes due to environment and age.
- Mechanical damage (impact, abrasion, contact with another part, poor attachment).
- Vibration and stress due to missing/damaged brackets or incorrect pipe routing.
- Leakage at joints caused by hardened gaskets, dirt on the contact surfaces or inappropriate assembly.







