Description
Assembled air metering unit Delphi for Citroën and Peugeot vehicles with 1.6 HDi engines. Throttle valve, intake flap.
Product Overview
This Delphi air metering unit (throttle valve / intake flap) is designed for Citroën and Peugeot 1.6 HDi diesel engines. The unit regulates bypass airflow through the intake tract to stabilise idle, support cold starts and assist the engine control unit in precise air metering during low-load conditions. Commonly searched by part numbers 9660030580 and 0345E7, this component is frequently replaced on high-mileage HDi engines where soot and carbon deposits impair valve movement or where the actuator/electronics fail.
Applications
Compatible With (Examples):
- Citroën Berlingo – 1.6 HDi
- Citroën Xsara Picasso – 1.6 HDi
- Peugeot Partner – 1.6 HDi
Note: Fitment depends on engine variant and production year. The part is often identified by its OE numbers during searches and spare-parts matching.
Technical Information
- Manufacturer: Delphi
- Model: Citroën Berlingo; Citroën Xsara Picasso; Peugeot Partner (1.6 HDi)
- Product Codes: 9660030580; 0345E7
- Other Numbers: 3450000000; NFP
Installation Recommendations
General replacement steps (for experienced technicians or competent DIYers):
- Park the vehicle on a level surface and allow the engine to cool.
- Disconnect the negative battery terminal before starting work.
- Remove air intake ducting and associated hoses to access the throttle/intake flap assembly.
- Unplug the electrical connector and any vacuum lines (note their routing).
- Unscrew the mounting bolts and remove the unit. Replace any gaskets or seals as required.
- Fit the new unit, reconnect electrical and vacuum connections, and reassemble intake components.
- After installation, follow the vehicle manufacturer’s recommended procedures for idle adaptation if applicable.
Use appropriate tools and observe the manufacturer’s torque and handling specifications. If uncertain, have the replacement performed by a qualified technician.
Why It Fails Most Often
- Carbon and Soot Build-Up: Diesel engines with EGR systems deposit soot that restricts valve movement.
- Mechanical Wear: Pivot points and linkages can seize or wear after many service miles.
- Electrical/Actuator Faults: Internal motor or position sensor failures stop correct flap positioning.
- Contamination And Moisture: Dirt ingress or moisture can corrode electrical contacts and mechanisms.
Typical Symptoms Of A Faulty Unit
- Unstable or High Idle, Especially When Cold
- Engine Stalling At Idle Or After Deceleration
- Illuminated Engine Warning Light Related To Air Intake Or Idle Control
- Reduced Driveability At Low Loads
Practical Tips
- Inspect intake hoses and vacuum lines for leaks when replacing the unit—air leaks often mimic flap faults.
- Cleaning may temporarily restore function if the mechanism is only lightly contaminated; however, replacement is recommended when the actuator or sensor is faulty.
- Search by OE numbers 9660030580 and 0345E7 when ordering spare parts to ensure quick matching.
