Description
Air connection for the intercooler of 1.6 HDI 8V and 1.2 81 kW engines for CITROËN and PEUGEOT vehicles.
Direct-fit intercooler intake hose designed for turbocharged 1.6 HDi 8V and 1.2 81 kW engines. This high-quality replacement part restores proper airflow and pressure sealing between the intercooler and the intake tract, helping to recover lost boost, improve throttle response and eliminate boost leaks. Ideal for professional workshops and experienced DIYers looking for an exact-fit hose that matches original routing and mounting points. Frequently searched by part number (9683725580 / 0382NN), this component is a common service item for Citroën and Peugeot models fitted with the listed engines.
Technical Information
- Manufacturer: Stellantis / Citroën / Peugeot
- Model: 1.6 HDi 8V, 1.2 81 kW
- Product Codes: 9683725580, 0382NN
- Additional Numbers: 0382.NN
Fitment And Applications
Compatible with multiple Citroën and Peugeot models using the above engines, for example Citroën C4 II, Citroën C4 Picasso and Peugeot 308. Always check engine type and part number when ordering to ensure correct fitment.
Function And Symptoms Of Failure
The hose conveys compressed air between the turbo/intercooler and the intake tract and must maintain an airtight seal under boost. When the hose develops cracks, splits or loose connections, common symptoms include loss of boost pressure, reduced engine power, irregular turbo response, whistling or hissing noises under acceleration, and potential limp-home behaviour.
Replacement Guide And Installation Recommendations
- Allow Engine To Cool And Relieve Boost Pressure Before Starting Work.
- Loosen And Remove Hose Clamps Securing The Old Hose; Note Clamp Types And Positions.
- Remove The Old Hose Carefully, Inspect Mating Surfaces, Intercooler Necks And Turbo Outlet For Damage Or Oil Residue.
- Install New Hose In Correct Orientation, Ensure Seated Fully On Both Necks And Refit Clamps. Use New Clamps If Original Are Corroded Or Deformed.
- Secure Clamps Firmly But Avoid Over-Tightening; Ensure No Twists Or Kinks In The Hose.
- Start Engine And Check For Leaks Under Load; Road Test To Verify Turbo Response And Engine Performance.
Why This Part Fails Most Often
Common causes of failure include long-term exposure to heat cycles, oil contamination from turbocharger seals, vibration and mechanical stress at clamp points, and age-related material degradation (hardening or cracking). Improperly tightened or corroded clamps accelerate leakage and hose movement, which shortens service life.
Practical Tips For Mechanics And DIYers
- Inspect Surrounding Components (Turbo Outlet, Intercooler Pipes, Clamps, Gaskets) And Replace Any Worn Items Simultaneously.
- Clean Mating Surfaces To Remove Oil And Debris Before Installing The New Hose To Ensure A Reliable Seal.
- Use Quality Worm-Drive Or Oetiker Clamps Appropriate For Boost Applications.
- After Installation, Run The Engine To Operating Temperature And Re-Check Clamps For Tightness.
Part numbers prominently used when searching: 9683725580, 0382NN. Supplied as a direct replacement for the listed engine applications to restore proper boost integrity and engine performance.
