Description
Overview
The intake air resonator for 1.6 HDI engines is a purpose-designed component that stabilises intake airflow, reduces induction noise and supports consistent air–fuel mixing. Suited for PSA Citroën and Peugeot applications, this resonator is aimed at professional mechanics and experienced DIY technicians looking for a direct-fit replacement.
Function And Common Failure Modes
The resonator dampens pressure pulsations in the intake tract to smooth air delivery into the engine. Over time it may develop cracks, torn connections or internal contamination from oil or debris, which can cause increased induction noise, rough idling or reduced throttle response. Heat and age-related material degradation are common reasons for replacement.
Replacement And Installation
Replacement is usually performed during routine intake-system service. Typical steps: allow the engine to cool, loosen hose clamps, disconnect associated intake hoses and remove the resonator from its mounting points. Fit the new resonator ensuring correct hose seating and secure clamps to the manufacturer recommended torque. Start the engine and inspect for vacuum leaks and abnormal noises. A basic set of screwdrivers, pliers for hose clips and a torque wrench for final clamp setting are usually sufficient.
Technical Information
Manufacturer: PSA Citroën Peugeot
Model: Citroën Berlingo, Citroën C4, Citroën C4 Picasso, Citroën Xsara, Peugeot 307, Peugeot 308, Peugeot Partner
Product Codes: 9653778480, 144068
Additional Numbers: N/A
Notes
This resonator was carefully removed from a vehicle and visually inspected to confirm good condition. Always verify fitment against the vehicle VIN or official parts catalog before installation. Ideal for maintenance, repair and OEM-equivalent replacement tasks to restore intake system performance.
