This used intake pipe/turbocharger inlet is a direct-fit replacement frequently searched by part number for 2.0 HDi engines. It connects the air filter/airbox to the turbocharger, guiding intake air while withstanding pressure changes during boost. The part is a practical choice for mechanics and DIY enthusiasts who need a reliable repair to restore correct turbo response and eliminate boost leaks. Commonly looked up by OE numbers, this component helps recover lost power, reduce turbo lag and prevent unwanted air leaks that can trigger fault codes.

Key Benefits

• Direct-fit replacement for Citroën and Peugeot 2.0 HDi applications.
• Restores correct turbocharger airflow and eliminates boost leaks.
• Often identified by OE/product numbers—easy to find in parts search.
• Suitable For Professional Workshops And Experienced DIYers.

Replacement Procedure

Replacement is straightforward for an experienced mechanic. Typical steps:

• Allow The Engine To Cool. Work Only On A Cold Engine To Avoid Burns.
• Disconnect Battery If Necessary For Safety When Working Near Electrical Components.
• Locate The Pipe Between The Airbox/Intake And The Turbocharger.
• Loosen Hose Clamps On Both Ends And Any Fasteners Or Brackets Holding The Pipe.
• Carefully Remove Sensors Or Vacuum Lines Attached To The Pipe (Mark Their Positions).
• Remove The Old Pipe, Inspect Couplings And Surrounding Seals.
• Fit The Replacement Pipe, Ensure Proper Seating In Couplers, Replace Clamps If Worn.
• Tighten Clamps Securely, Reconnect Sensors And Hoses, Refit Any Brackets.
• Start Engine, Check For Boost Leaks And Proper Operation; Perform A Road Test.

Recommended For Installation

• Use New Stainless or OEM-Grade Clamps To Ensure A Reliable Seal.
• Inspect Surrounding Hoses, Intercooler Pipes And Vacuum Lines While Replacing.
• If Boost-Related Fault Codes Persist, Check Turbocharger Connections, Wastegate And MAP/MAF Sensors.
• Keep Hands And Tools Clear Of Moving Parts During Test Run; Verify No Leaks Under Load.

Why This Part Fails Most Often

Failure modes are typically related to age, heat and contamination. Common causes include:

• Heat And Age-Related Cracking Or Hardening Of Rubber/Plastic Sections.
• Oil Contamination From Turbocharger Or PCV System Causing Swelling Or Softening.
• Damage From Over-Tightened Or Faulty Clamps Leading To Rips At The Joints.
• Abrasions From Contact With Nearby Components Or Improper Routing.
• Gradual Loosening Of Connections Causing Intermittent Boost Leaks And Performance Loss.

Technical Information

• Manufacturer: Stellantis / Citroën / Peugeot
• Model: Citroën C4 Picasso; Citroën C5; Citroën C5 X7; Citroën C8; Peugeot 307; Peugeot 407; Peugeot 807 (2.0 HDi Engines)
• Product Codes: 9684878980, 9652091380, 9647549880, 9644908180, 143484
• Other Numbers: 143495

Notes For Professionals And DIYers

Because the part is a used component, inspect mating surfaces, clamps and sealing areas carefully before installation. Replace any worn couplings or clamps to prevent repeat failures. This pipe is commonly searched by its OE numbers listed above — entering those codes in parts catalogs or search engines will quickly locate the correct item.