Description
Complete air connection 1.6 HDI for Citroen C5 X7 and Peugeot 407 cars
Part description
The air connection (complete air connection) for the 1.6 HDI engine is a part of the intake system that ensures the correct air flow between the following parts of the intake. With the used parts, it is crucial that the joint seals well and is not mechanically damaged – only then will the engine suck in air without unwanted leaks and the system will work as it should.
This part is intended for Citroën C5 X7 and Peugeot 407 and is often searched for under product number 0382LP.
Technical information
- Manufacturer: Stellantis (Citroën/Peugeot)
- Model: Citroën C5 X7; Peugeot 407
- Other numbers: not specified
Product codes
- Product codes: 0382LP
Installation recommendations
Generally/typically for intake manifold and air connection parts, the exact procedure may vary depending on the specific design of the car and associated components. Below is a practical one-size-fits-all procedure.
1) Before assembly
- Compare the new part with the old one: shape, diameters of connections, number and type of attachment, possible spigots/outlets.
- Check the condition of the connection: cracks, deformations, damaged abutting edges and sealing grooves, worn securing elements.
- If sealing elements (O-rings/gaskets) are included, assess their condition; a damaged gasket is a frequent source of leakage.
- Check that there are no impurities in the part (sand, plastic fragments, etc.).
2) Necessary tools and materials
- Basic set of ratchets/bits and screwdrivers
- Pliers for clips/hose clips (according to type)
- Clean rags, or a gentle cleaner to degrease the contact surfaces
- Light for checking tightness and seating
3) Step-by-step assembly procedure
- Allow the engine to cool and secure the vehicle against movement.
- Ensure safe access to the suction part; as necessary, remove the covers that are in the way.
- Carefully release the clips/mounts and disconnect the old air connection from the connecting parts.
- Check the mating surfaces on the mating pieces (necks, flanges) and clean them of dust and grease.
- Check the seals/O-rings on the fitting or in the mating pieces; do not use damaged seal parts.
- Put on the connection first “dry” and verify that it sits without tension and in a natural position.
- Make the final installation of the connection and insert it as far as it will go according to the design of the connection.
- Tighten/snap all clips and fasteners evenly so that the joint is firmly held and sealed.
- Check the routing of the part: it must not touch sharp edges or hot parts and must not be in tension.
- Put back the removed covers and check that there are no tools left in the engine compartment.
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4) Post-assembly checks and test drive/function verification
- After starting, check that the joint does not blow/hiss (a sign of a leak) and that the part does not move in the mount.
- Perform a visual inspection of all clips and connections after running the engine for a short time.
- After a short test drive, check again for seating and any signs of leakage.
5) The most common assembly mistakes + how to avoid them
- Uncleaned contact surfaces → always clean, otherwise the joint will leak.
- Damaged or poorly seated gasket → check the grooves and correct fit.
- Distortion/tension of the hose or connection → test the position first and only then fix the clips.
- Clips that are not tightened / quick couplings that are not properly engaged → after assembly, perform a tensile test of each connection.
Reasons why the part is damaged
- Aging of the material (heat, vibration, oil fumes) leading to cracks and embrittlement.
- Leakage and false air intake due to a damaged seal or deformation of the abutting edges.
- Mechanical damage during unprofessional disassembly/assembly (prying, torn handles, cracked collars).
- Incorrect attachment – the part rubs against the surrounding parts, wears through or cracks over time.
- Impurities in the suction which can damage the contact surfaces or worsen the tightness of the joints.
