Description
Throttle Body Intake Throat Housing for Citroën and Peugeot Vehicles
This used throttle body intake throat housing is compatible with a range of Citroën and Peugeot petrol engines and is commonly referenced under OEM numbers 9640796280 and 1635R8. Designed for 1.8 16V and 2.0 16V applications, the unit replaces the intake throttle body housing that guides air into the engine and supports the throttle plate and sensors. Ideal for professional workshops and DIY mechanics who search by part number to find a direct-fit replacement.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Models: Citroën Berlingo, Citroën C2, Citroën C3, Citroën C3 Pluriel; Peugeot 206, Peugeot 206+, Peugeot Partner
- Product Codes: 9640796280, 1635R8
- Other Numbers: 1635.R8
- Suitable Engines: 1.8 16V (1.8i) and 2.0 16V (2.0i) petrol engines
- Condition: Used replacement part
Function And Symptoms
The throttle body housing secures the throttle plate and associated sensors that regulate incoming air to the engine. When functioning correctly it ensures stable idle, predictable throttle response and correct air metering for the engine management system. Common symptoms of a failing or contaminated unit include unstable or high/low idle, poor acceleration, hesitation on throttle, increased fuel consumption and Check Engine Light related to throttle/air metering.
Fitment And Replacement
- Park vehicle on level surface and disconnect the battery before starting work.
- Remove the air intake hose and airbox components to access the throttle body.
- Unplug electrical connectors and vacuum lines attached to the throttle body (label hoses if needed).
- Unscrew the mounting bolts securing the throttle body housing to the intake manifold and remove the unit.
- Fit the replacement housing with a new gasket or O-ring where applicable and ensure mating surfaces are clean and free of debris.
- Tighten bolts evenly to manufacturer’s specification (consult workshop manual for torque values) and reconnect connectors, hoses and intake components.
- Reconnect the battery and perform any required throttle relearn/initialization if the vehicle requires it (see notes below).
Installation Recommendations
- Always use a new gasket or O-ring to prevent vacuum leaks.
- Inspect and clean the intake path and throttle plate area to remove carbon deposits; avoid forcing the throttle plate by hand.
- Check wiring and connector pins for corrosion or damage; repair as necessary to ensure reliable sensor signals.
- Follow the vehicle manufacturer’s procedures for refitment; if torque values are required consult the factory repair manual.
- After installation, some vehicles require throttle relearn or idle adaptation either automatically after a defined ignition/run cycle or using a diagnostic tool—follow the specific vehicle procedure.
Why The Part Most Commonly Fails
- Carbon and oil deposits build up on the throttle plate and bore, causing sticking or inaccurate air metering.
- Wear or play in the throttle shaft and bearings leading to air leaks and poor sealing.
- Failure of attached sensors or potentiometers (in electronically controlled throttle bodies) due to age or contamination.
- Corroded or damaged electrical connectors causing intermittent signals.
- Ingestion of dirt or debris from an inadequately maintained intake system.
Notes
This item is a used replacement part sold for direct-fit applications listed above. Compatibility is typically identified by OEM part numbers (9640796280 / 1635R8). For a reliable result, perform a visual inspection of electrical connectors and moving parts before installation and follow the manufacturer’s service instructions during replacement.
