Description
Air Connection At The Intercooler For CITROËN PEUGEOT 2.0 HDI RH02 Engines
This air connection hose for the intercooler is designed for 2.0 HDi engines (RH02 family) used across a range of Citroën and Peugeot models. Built to route compressed intake air between the turbocharger/intercooler and the inlet tract, the part restores proper boost pressure and throttle response when original hoses crack, split or lose sealing capacity. Frequently searched by part number 0382NF, this component is a common service item for workshops and DIY mechanics working on C4 Picasso, C5 and first‑generation 3008/5008 vehicles.
Technical Information
- Manufacturer: Stellantis / Citroën / Peugeot
- Model: Citroën C4 Picasso; Citroën C5 X7; Peugeot 3008 I; Peugeot 5008 I
- Product Codes: 0382NF
- Additional Numbers: Engine Code RH02, 2.0 HDi
Function
The part provides a sealed channel for pressurised intake air between the turbo intercooler and the engine intake. It must withstand pressure pulses, elevated under‑bonnet temperatures and exposure to oil vapours from the turbocharger system. A correct and undamaged connection ensures stable boost delivery, optimal combustion and prevents turbocharger over‑run events or limp‑home conditions caused by air leaks.
How The Part Is Replaced
- Allow The Engine To Cool And Work In A Clean, Well‑Lit Area.
- Loosen And Remove Hose Clamps Or Quick‑Release Fittings Securing The Old Connection.
- Carefully Detach The Hose From The Intercooler And Turbo/Intake Pipes To Avoid Damaging Adjacent Sensors Or Lines.
- Inspect Mating Surfaces, Replace Any Damaged Clamps Or O‑Rings, And Clean Oil Or Debris Before Fitting The New Part.
- Fit The New Hose, Center It Properly On Both Ends And Tighten Clamps Evenly To Secure A Leak‑Free Seal.
- Start The Engine, Check For Boost Leaks And Reinspect Clamps After A Short Test Drive.
Installation Recommendations
- Use New Stainless Or OEM‑Quality Clamps When Replacing The Hose To Ensure Long‑Term Seal Integrity.
- Check Adjacent Turbo And PCV Components For Oil Leaks; Oil Contamination Accelerates Rubber Deterioration.
- Avoid Over‑Tightening Worm‑Drive Clamps On Soft Hose Sections; Use Constant‑Tension Or Spring Clamps Where Recommended.
- Inspect The Intercooler And Intake Pipes For Cracks Or Internal Oil Buildup During Replacement.
- Verify Proper Routing To Prevent Rubbing On Sharp Edges Or Contact With Hot Exhaust Components.
Most Common Failure Reasons
- Age‑Related Rubber Deterioration: Heat Cycling And Ozone Cause Cracking And Loss Of Flexibility.
- Oil Contamination From Turbocharger Or PCV System, Which Softens And Weakens The Hose Material.
- Over‑Pressurisation From Turbocharger Malfunction Or Boost Control Failure, Leading To Blown Hoses.
- Corroded, Loose Or Incorrect Clamps That Allow Leaks Or Abrasion.
- Mechanical Damage From Road Debris Or Incorrect Routing Causing Chafing And Tears.
Typical Symptoms Indicating Replacement: Reduced Engine Power, Whistling Or Hissing Under Acceleration, Intermittent Turbo Response, Increased Smoke From Exhaust Or Triggered Engine Fault Codes Related To Boost Pressure.
