Description
Throttle Body, Throttle Body Housing For Air Intake, VDO. For Engines 1.8 16V And 2.0 16V Citroën Peugeot. Tested, Fully Functional.
Product Overview
This VDO Throttle Body (throttle valve housing) controls the amount of air entering the intake manifold on 1.8 16V and 2.0 16V Citroën and Peugeot petrol engines. It Is An Essential Component Of The Engine Management System, Working With The Engine Control Unit To Regulate Idle, Throttle Response And Fueling. Supplied As A Complete Unit Featuring The Throttle Plate, Drive Motor/Actuator And Position Sensing Elements, It Is Suitable For Professional Workshops And Competent DIY Mechanics.
Key Benefits
- Direct Fit For Specified Citroën And Peugeot Engines — Simplifies Replacement And Reduces Installation Time.
- Restores Correct Airflow Control — Improves Idle Stability, Throttle Response And Fuel Economy When Faulty.
- VDO Quality — Known Supplier For Automotive Electronics And Sensors.
- Sold Under OE Reference Numbers For Easier Search And Identification (See Technical Information).
Typical Applications
Commonly Found On The Following Models And Engine Configurations:
- Citroën C4 (1.8 16V)
- Citroën C4 Picasso (1.8 16V)
- Citroën C5 (1.8 16V / 2.0 16V)
- Peugeot 307 (1.8 16V)
- Peugeot 407 (2.0 16V)
Technical Information
- Manufacturer: VDO
- Model: Throttle Body / Throttle Valve Housing
- Product Codes: 9650787380, 1635X0
- Other Numbers: Stellantis Fitment For Citroën / Peugeot 1.8 16V And 2.0 16V Engines
How The Part Works
The Throttle Body Regulates Airflow Into The Engine By Varying The Angle Of The Throttle Plate. An Electric Actuator Or Motor, Controlled By The Engine Control Unit, Moves The Plate According To Driver Input And Engine Demands. Integrated Position Sensing Provides Feedback To The ECU For Precise Control.
Common Failure Modes And Causes
- Carbon And Soot Buildup On The Throttle Plate And Bore — Leads To Sticky Operation, Erratic Idle And Poor Throttle Response.
- Worn Or Faulty Actuator/Motor — Causes Inability To Open Or Close The Plate Smoothly.
- Failure Of The Position Sensor — Triggers Engine Fault Codes And Limp-Home Modes.
- Electrical Issues — Corroded Connectors Or Damaged Wiring Can Interrupt Signals To The ECU.
- Vacuum Or Intake Leaks Around The Mounting Gasket — Affect Idle And Air–Fuel Ratio.
Replacement And Installation Recommendations
Replacement Is Straightforward For Experienced Mechanics: Remove The Engine Cover (If Present), Detach The Intake Hose And Electrical Connector, Undo The Mounting Bolts, Swap The Unit And Reassemble. Always Replace Any Damaged Seals Or Gaskets During Installation.
- Safety First: Disconnect The Battery Before Starting Work To Avoid Short Circuits And Unwanted ECU Inputs.
- Handle The Unit Carefully To Avoid Damaging The Throttle Plate Or Position Sensor.
- Tighten Mounting Bolts To Manufacturer Torque Specifications And Ensure A Clean Mating Surface.
- After Installation, Perform Throttle Adaptation/Relearn If Required — Many Vehicles Require A Relearn Procedure Using A Diagnostic Tool To Restore Proper Idle And Throttle Mapping.
- Inspect And Clean Intake Tract And MAF Sensor To Prevent Premature Recontamination.
Why The Part Fails Most Often
The Most Frequent Cause Of Throttle Body Problems Is Carbon Buildup From Recirculated Exhaust Gases And Unburned Fuel Deposits. Over Time, These Deposits Restrict Movement And Change The Effective Airflow, Causing Faults. Electrical Wear, Moisture Ingress To Connectors, And Mechanical Wear Of The Actuator Also Contribute.
Recommendation For Installation
We Recommend Installation By A Qualified Technician Or An Experienced DIY Mechanic With Basic Diagnostic Equipment. After Fitting, Check For Stored Fault Codes And Complete Any Required Throttle Relearn Procedure To Ensure Correct Idle And Response.
Notes For Buyers
Search Terms That Commonly Find This Part Online: Throttle Body VDO 9650787380, Throttle Valve 1635X0, Citroën Throttle Body, Peugeot Throttle Body, 1.8 16V Throttle Valve, 2.0 16V Throttle Valve.
