Description
Air Connection For Citroën Peugeot 2.0 HDi RH02 Engines
Direct-fit air connection hose designed for 2.0 HDi RH02 engines used on selected Citroën and Peugeot models. This intake/charge-air connector restores proper air routing between the turbocharger/intercooler and the engine, helping to eliminate boost leaks, airflow inconsistencies and related drivability issues. Ideal for professional workshops and experienced DIY mechanics who often search by part number (9685498280, 1434E6). Fits applications where a reliable seal and correct hose geometry are critical for turbocharged diesel performance.
Technical Information
- Manufacturer: Stellantis / Citroën / Peugeot
- Model: Citroën C4 Picasso; Peugeot 3008 I; Peugeot 5008 I; Engine: 2.0 HDi (RH02)
- Product Codes: 9685498280; 1434E6
- Additional Numbers: 1434000000; NFP; Associated Fault Codes: P0101; P0299
Recommended Installation
- Work On A Cool Engine. Allow The Engine And Turbo System To Cool Before Starting.
- Relieve Any Residual Boost/Vacuum Pressure By Cranking The Engine Briefly With Fuel Disabled Or Following Manufacturer Procedure.
- Loosen Clamps And Carefully Remove The Old Hose. Inspect Mating Surfaces, Turbo/Intercooler Necks And Intake Manifold For Damage Or Debris.
- Fit The New Connector Ensuring Correct Orientation And Full Seating On Both Necks. Use Appropriate Quality Clamps; Replace Corroded Or Damaged Clamps.
- Tighten Clamps Securely But Avoid Over-Torquing Plastic/Rubber Necks. Start Engine And Inspect For Leaks Under Load (Test Drive/Boost Under Supervision).
- Clear Fault Codes And Recheck Engine Management For Recurring Faults; If Codes Persist, Inspect Sensors (MAF, MAP) And Associated Vacuum Lines.
Why This Part Fails Most Often
- Ageing And Heat Degradation Of Rubber/Composite Materials Causing Cracks Or Splits.
- Oil Contamination From Turbocharger Leaks Or PCV System Leading To Softening And Swelling.
- Corroded Or Loose Clamps Resulting In Loss Of Seal Under Boost.
- Mechanical Damage From Improper Installation, Road Debris Or Engine Movement.
- Repeated High Boost Cycles Accelerating Fatigue Around Bend Radii And Connection Necks.
Typical Symptoms
- Check Engine Light With Related Codes Such As P0101 (MAF/airflow Performance) Or P0299 (Turbo Underboost).
- Reduced Engine Power, Poor Acceleration And Increased Turbo Lag.
- Audible Whistling Or Hissing From The Engine Bay Under Acceleration.
- Irregular Idle Or Hesitation During Throttle Changes.
Fitment Notes
Part Numbers 9685498280 and 1434E6 are frequently used to identify the correct air connection for 2.0 HDi RH02 applications. Confirm physical match with the removed hose (shape, diameter, connection types) when replacing. This component is commonly searched and ordered by its product code for faster identification in parts catalogs.
Additional Advice For Professionals
When replacing intake/charge-air connectors in turbocharged diesel engines, always inspect surrounding components (turbocharger outlet, intercooler, clamps, MAF/MAP sensors) and replace any worn clamps or damaged sealing surfaces to ensure a long-lasting repair.
