Description
Intake air distribution manifold for 1.8 16V and 2.0 16V engines of Citroën and Peugeot vehicles. Original high-quality part.
This intake air distribution manifold is a direct-fit replacement designed for petrol 1.8 16V and 2.0 16V engines used in a range of Citroën and Peugeot models. Manufactured to original equipment standards, it restores proper air routing to the intake ports, helping to recover smooth idling, throttle response and overall engine efficiency. Commonly searched by part numbers 9662401480, 0361R0 or 0361N8, this unit is suitable for professional workshops and experienced DIY mechanics seeking OE-quality replacement components.
Technical Information
- Manufacturer: Stellantis / Citroën / Peugeot
- Model: Citroën C4, Citroën C4 Picasso, Citroën C5, Citroën C5 X7, Peugeot 307, Peugeot 407 (engines 1.8 16V and 2.0 16V)
- Product Codes: 9662401480, 0361R0
- Other Numbers: 0361N8
Function
The intake air distribution manifold (sací rozvaděč) channels incoming air from the throttle body to the individual intake runners and ports on the cylinder head. It ensures even air distribution between cylinders and provides mounting points and vacuum connections for sensors, hoses and actuators. A correctly sealed manifold is essential for maintaining the correct air–fuel ratio and stable engine operation.
Fitment And Compatibility
Fits Citroën and Peugeot petrol engines 1.8 16V and 2.0 16V. Typical compatible vehicles include Citroën C4, C4 Picasso, C5 (including X7 variants) and Peugeot 307, 407 — check engine variant (1.8/2.0 16V) when selecting. The part is often identified in searches by its OEM numbers (see Technical Information).
Replacement Procedure (Overview)
Replacement requires moderate mechanical skill and basic workshop tools. Typical steps:
- Allow the engine to cool. Disconnect any related vacuum lines and electrical connectors (mass air flow sensor, throttle body connections, sensors mounted on the manifold).
- Remove the intake ducting and throttle body if necessary to gain access. Note the position of hoses and retaining clips for correct reassembly.
- Undo manifold mounting bolts and remove the manifold together with the old gasket(s).
- Clean the cylinder head mating surface thoroughly and install a new gasket. Fit the replacement manifold and tighten bolts to the manufacturer’s torque specification.
- Reconnect hoses, sensors and intake ducting. Start the engine and check for vacuum leaks, fault codes and stable idle. Replace any brittle vacuum hoses or clamps found during the job.
Installation Recommendations
- Always use a new intake manifold gasket and replace any associated seals or O-rings.
- Inspect and, when needed, replace vacuum hoses, clamps and the intake duct to avoid recurring leaks.
- Tighten manifold fasteners to the manufacturer’s torque settings and in the recommended sequence to ensure a proper seal.
- Check for intake leaks after installation with a smoke test or by monitoring live engine diagnostics for irregularities.
- When reassembling electrical connectors, ensure sensors are clean and properly seated; clear any related fault codes and verify engine performance.
Why This Part Fails Most Often
Common failure causes include thermal stress and material ageing causing cracks or warping in plastic or composite manifolds, degraded gaskets leading to vacuum leaks, and broken vacuum or breather ports. Symptoms of failure are rough idle, loss of power, poor throttle response, and occasional check engine light codes related to air intake or mixture. Replacing the manifold and all related seals and hoses typically resolves these issues.
Notes For Professionals And DIY Mechanics
Part numbers printed above are commonly used by customers when searching for replacement units; include them in listings to improve findability. For reliable results, follow workshop manuals for disassembly and torque specifications. When replacing the manifold, consider inspecting the throttle body, MAP/MAF sensors and intake boots as part of a complete service to prevent repeated visits.
