Description
Throttle Valve, Throttle Body Inlet For 1.4 16V And 1.6 16V Engines For Citroën And Peugeot Vehicles.
Stellantis Citroën Peugeot Part Numbers 9647925480, 1635W2, NFP. This throttle body assembly is intended for 1.4 16V and 1.6 16V petrol engines fitted to a range of Citroën and Peugeot models. It Provides A Direct Replacement For Worn Or Faulty Throttle Bodies And Restores Correct Airflow Control For Stable Idle, Smooth Throttle Response And Proper Emissions Behaviour. Ideal For Professional Garages And Competent DIY Mechanics Searching By Part Number.
Function And Benefits
The Throttle Body Regulates Intake Airflow Based On The Accelerator Position And Sends Position Data To The Engine Management System Via Sensors. A Healthy Throttle Body Ensures Stable Idle, Smooth Acceleration And Correct Air/Fuel Mixture. Replacing A Faulty Unit Eliminates Symptoms Such As Rough Idle, Hesitation, Surging And Unstable Revving.
Compatibility And Typical Applications
Fits 1.4 16V And 1.6 16V Petrol Engines Used In Popular Models, Including:
- Citroën Berlingo
- Citroën C2
- Citroën C3
- Citroën C3 Pluriel
- Citroën C4
- Peugeot 206
- Peugeot 307
- Peugeot Partner
Technical Information
- Manufacturer: Stellantis / Citroën / Peugeot
- Model: Throttle Body For 1.4 16V And 1.6 16V Petrol Engines
- Product Codes: 1635W2, 9647925480
- Other Numbers: NFP
Installation Recommendations
Follow These Steps For A Correct Replacement:
- Disconnect The Battery Before Starting Work To Avoid Electrical Faults And Protect The Engine Management System.
- Remove The Intake Hose And Any Heat Shields Or Wiring Loom Clips To Access The Throttle Body.
- Unplug The Electrical Connector And Any Vacuum Lines; Note Positions For Reassembly.
- Unbolt The Throttle Body From The Intake Manifold, Remove Old Gasket And Clean Mating Surface Thoroughly.
- Install New Gasket, Fit The New Throttle Body, And Tighten Fasteners To The Manufacturer’S Torque Specifications.
- Reconnect Electrical Connectors, Vacuum Lines And Intake Hose. Reconnect The Battery.
- Perform Throttle Relearn/Idle Adaptation According To Manufacturer Procedure Or Use A Diagnostic Tool If Required. If Unsure, Follow The Service Manual Steps For Idle Initialization.
Use Appropriate Tools And Observe Standard Safety Procedures. Replace Any Damaged Hoses Or Gaskets During The Job To Prevent Air Leaks.
Most Common Reasons For Failure
- Carbon And Soot Buildup Causing Valve Sticking Or Restricted Airflow, Especially With Predominantly Urban Driving.
- Failure Of The Throttle Position Sensor Or Electronic Actuator Leading To Incorrect Position Feedback.
- Vacuum Leaks Or Damaged Intake Gaskets Creating Unmetered Air Ingress.
- Corroded Or Damaged Electrical Connectors And Wiring Causing Intermittent Signals.
- Wear From Long Service Life; Symptoms Become More Likely After Extended Mileage Or Lack Of Regular Maintenance.
Practical Tips
- Inspect And Clean The Intake Path And MAF Sensor When Replacing The Throttle Body To Maximize Benefit.
- Always Fit A New Gasket And Check For Vacuum Hose Integrity.
- Search Using The Part Numbers 1635W2 Or 9647925480 For Fast Identification In Catalogues And Search Engines.
Notes
Replacement Restores Reliable Airflow Control But May Require Electronic Relearning To Fully Eliminate Fault Codes. Follow The Vehicle Manufacturer’S Service Instructions For Final Checks.
