Description
Throttle valve, throttle body for 1.4 16V and 1.6 16V engines for CITROËN and PEUGEOT vehicles
High-quality replacement throttle body designed for Stellantis 1.4 16V and 1.6 16V petrol engines. Ideal for professional garages and DIY mechanics who need a reliable unit compatible with many Citroën and Peugeot models. Frequently searched by part numbers 1635W2 and 9647925480, this throttle body restores correct air metering, smooth idling and responsive throttle response after faults caused by contamination or wear.
Applications and Fitment
Compatible With: Citroën Berlingo, Citroën C2, Citroën C3, Citroën C3 Pluriel, Citroën C4, Peugeot 206, Peugeot 307, Peugeot Partner. Engines: 1.4 16V and 1.6 16V petrol engines.
Technical Information
- Manufacturer: Stellantis / Citroën / Peugeot
- Model: 1.4 16V, 1.6 16V (see vehicle fitment list)
- Product Codes: 1635W2, 1635.W2, 9647925480
- Other Numbers: NFP (reference in supplier listing)
Function And Common Faults
The Throttle Body Controls Airflow Into The Engine By Varying The Position Of The Throttle Plate. It Also Houses The Throttle Position Sensor And Motor/Actuator In Drive-By-Wire Systems. Typical Symptoms Of A Failing Unit Include Erratic Idle, Stalling, Poor Throttle Response, Engine Management Light And Reduced Power Modes.
Why This Part Fails
- Carbon And Soot Buildup On The Throttle Plate Causing Stickiness Or Restricted Airflow.
- Wear Or Failure Of The Throttle Position Sensor Or Actuator Electronics.
- Corroded Or Damaged Electrical Connectors And Wiring.
- Vacuum Leaks At The Throttle Body Gasket Or Intake Manifold.
How Often It Fails
Failure Depends On Driving Conditions And Maintenance. Units In Urban Or Dusty Environments Tend To Accumulate Carbon Faster. Many Throttle Bodies Show Issues After 100,000 Km, But This Varies Widely With Use And Service History.
Replacement Procedure
- Disconnect Battery Before Starting Work To Prevent Electrical Damage And Avoid Faults.
- Remove Intake Hose And Any Sensors Or Vacuum Lines Attached To The Throttle Body. Label Hoses If Necessary.
- Unbolt The Throttle Body From The Intake Manifold And Remove The Old Gasket.
- Fit New Gasket And Install Replacement Throttle Body. Tighten Fasteners To The Manufacturer’S Spec Or Until Secure; Use Correct Torque If Available.
- Reconnect Electrical Connector, Sensors And Intake Hose. Ensure Connectors Are Clean And Free Of Corrosion.
- Perform Throttle Adaptation/Idle Relearn According To Manufacturer Procedure Using A Diagnostic Tool Or By Following The Approved Relearn Steps After Reconnection.
Installation Recommendations
- Always Replace The Throttle Body Gasket And Inspect The Intake For Oil Or Carbon Deposits.
- Clean Surrounding Surfaces And Air Inlet To Minimize Contamination.
- Do Not Force Electrical Connectors; Check Pins For Damage Or Corrosion.
- Follow Manufacturer’S Procedures For Throttle Relearn. If No Exact Procedure Is Available, Use A Diagnostic Tool To Reset Adaptations.
- Check For Vacuum Leaks And Intake System Integrity After Installation.
Recommended Tools
Basic Hand Tools, Torque Wrench (If Available), Clean Rags, Brake Cleaner Or Throttle Cleaner For Surrounding Areas, Diagnostic Interface For Throttle/Idle Relearn.
Why Choose This Part
This Throttle Body Offers Direct Fitment For Common Citroën And Peugeot Engines, Clear Cross-References To Popular Part Numbers And A Practical Solution For Restoring Driveability Without Replacing The Entire Intake System. Suitable For Workshops And Experienced DIY Mechanics.
