Climate pipe Citroen Peugeot 9657451180 6460QK

Description

Air conditioning pipe for Citroen C4 and PEUGEOT 307 cars with 2.0i engine

Part description

This climate pipe is intended for repairing/restoring the air conditioning function in selected Citroën and Peugeot cars. It serves as part of the air conditioning circuit – when damaged or leaking, the air conditioning typically stops cooling effectively and the system can lose refrigerant. Thanks to the given codes (9657451180, 6460QK), you can easily find it and compare it with the existing part.

Suitable for: Citroën C4 and Peugeot 307 with 2.0i engine (according to documents).

Technical information

• Manufacturer: Stellantis (Citroën/Peugeot)
• Model: Citroën C4; Peugeot 307
• Other numbers: NFP, 6460QK

Product codes

• Product codes: 9657451180, 6460QK

Installation recommendations

Generally/typically for pipe climate, the exact procedure may vary depending on the specific design of the air conditioning circuit in the car. Below is a safe general procedure for replacing a part in the “pipe climate” category.

1) Before assembly

• Compare the part numbers (9657451180 / 6460QK) and tube shape with the old piece.
• Check the condition of the mating surfaces, threads/mounts and whether there are any visible cracks, dents or traces of oil/coolant leakage.
• Check that gaskets/O-rings are present at the connection ends; it is typically recommended to use a suitable gasket in the correct size (according to the specific application) when replacing it.

2) Necessary tools and materials

• Common set of hand tools (ratchet, bits, wrenches, screwdrivers).
• Cleaning agents for degreasing contact surfaces, clean rags.
• New seals/O-rings according to the design of the joint (generally recommended).
• Equipment for air conditioning service (extraction and filling of refrigerant) – typically an air conditioning service station.

3) Step-by-step assembly procedure

1. Secure the vehicle against movement and allow the engine to cool.
2. Before opening the circuit, have the air conditioner professionally vacuum (typically cannot be safely and properly drained without service equipment).
3. Get access to the tube according to the layout of the car (remove covers/lines that get in the way).
4. Clean the area around the connections so that dirt does not enter the circuit when disconnected.
5. Carefully loosen and disconnect the climate pipe connections; protect the open ends of the circuit from dirt.
6. Release the grips/holders and remove the old pipe without forcibly bending the surrounding lines.
7. Compare the old and new piece (shape, length, bends, end type) and prepare the corresponding gasket.
8. Mount the pipe in its original position, seat it in the holders and check that it does not rub anywhere and is not under tension.
9. Connect the pipe ends to the appropriate joints; pay attention to the cleanliness of the contact surfaces and the correct seating of the seals.
10. Tighten the connections appropriately according to the design (without stretching) and return the dismantled covers/parts.
11. Evacuate and then fill the air conditioning system with service equipment (typically including a leak check).
• 4) Post-assembly checks and test drive/function verification
  • After filling the air conditioner, check if there are no leaks at the joints (visually and using common methods of checking for leaks).
  • Check the air conditioning function at idle even after a short drive: stable cooling, no atypical sounds, no coolant smell.
  • Check that the wiring is not in contact with sharp edges or hot parts where it could penetrate over time.

  5) The most common assembly mistakes + how to avoid them

  • Opening of the circuit without extracting the refrigerant → always solve with service procedure and equipment.
  • Reusing old/damaged gaskets → typically replace with the correct gaskets for the joint.
  • Impurity in the circuit → clean working environment, blinding of open ends, cleaning of connections before disconnection.
  • Tension or bad pipe routing → place the pipe in all holders and check the clearances to the surrounding parts.

  Reasons why the part is damaged

  • Corrosion due to water, salt and dirt in the engine compartment/chassis area.
  • Vibration and material fatigue – prolonged stress can cause microcracks and subsequent leakage.
  • Mechanical damage (impact, bad handling during other repairs, improper support/bending of the pipe).
  • Rubbing against surrounding parts if the holder is missing or the line is not seated properly.
  • Leaks at joints due to hardened seals or dirt on the contact surfaces.