Description
Throttle body housing for 1.8i, 1.8 16V, 2.0i and 2.0 16V engines.
Direct replacement throttle body for Citroën and Peugeot petrol engines, offered under OE numbers 9652682880 and 1635W8. Designed for workshop professionals and experienced DIY enthusiasts, this unit restores precise air metering and throttle response on 1.8 and 2.0 litre engines. Clear and concise fitment by OE number makes it quick to find the correct part during repairs or routine maintenance.
Technical Information
- Manufacturer: Stellantis (Citroën/Peugeot)
- Model: Fits 1.8i, 1.8 16V, 2.0i, 2.0 16V petrol engines
- Product Codes: 9652682880
- Additional Numbers: 1635W8
Compatibility
Commonly used on a range of Citroën and Peugeot models with the listed engines. Typical applications include:
- Citroën C5
- Citroën Xsara
- Citroën Xsara Picasso
- Peugeot 206
- Peugeot 407
Function
The throttle body controls the amount of air entering the engine by regulating the position of the throttle plate. Accurate air metering is essential for correct fuel delivery, stable idle, smooth throttle response and emission control. The unit works together with the engine management system and associated sensors to maintain engine performance across load and speed ranges.
Installation Recommendations
- Always follow the vehicle manufacturer’s service procedure. Before starting work, disconnect the negative battery terminal to avoid electrical faults during removal.
- Remove the intake ducting and airbox to access the throttle body. Unplug any electrical connectors and vacuum hoses, noting their routing.
- Unbolt the throttle body from the intake manifold, replace the gasket or seal, and fit the new unit ensuring clean mating surfaces to prevent air leaks.
- Reconnect all hoses and connectors. After installation, perform the required throttle adaptation or idle relearn procedure using a suitable diagnostic tool or follow the vehicle-specific relearn steps to ensure correct idle and throttle response.
- Use proper torque settings for mounting bolts as specified by the manufacturer and check for intake leaks after installation.
Why The Part Typically Fails
- Carbon and oil deposits build up on the throttle plate and bore, causing sticking, poor sealing and unstable idle.
- Wear of mechanical components (shaft, bearings) leading to play or binding.
- Faulty or degraded sensors/contacts on electronically controlled throttle assemblies causing incorrect position feedback.
- Vacuum leaks at gaskets or hoses, and electrical faults in wiring or connectors that affect throttle control.
Service Life And Symptoms
There is no fixed lifetime; longevity depends on driving conditions and maintenance. Typical symptoms of a failing throttle body include rough or fluctuating idle, loss of throttle responsiveness, reduced fuel economy and illumination of the engine warning lamp with related throttle/air metering fault codes. Inspect and clean the throttle body during routine servicing or at the first sign of these symptoms.
Order by OE number 9652682880 or reference 1635W8 to ensure correct fitment for the listed 1.8 and 2.0 petrol engine applications. Suitable for workshop replacement or competent DIY fitting with standard tools and a diagnostic tool for final adaptation.
