Product Overview

This throttle body is a direct-fit air metering unit designed for 2.0 HDi RH02 engines used in a range of Citroën and Peugeot vehicles. Supplied with original Stellantis references 9670373980 / 9677515880 / 0345F4, the unit controls intake airflow to the engine and ensures stable idle, throttle response and engine management interaction. Ideal for professional workshops and skilled DIYers who require a reliable replacement part that matches OEM specifications.

Technical Information

• Manufacturer: Stellantis / Citroën / Peugeot
• Model: 2.0 HDi RH02
• Product Codes: 9670373980, 9677515880, 0345F4
• Other Numbers: OEM References 9670373980 | 9677515880 | Internal Code 0345F4

Compatibility

Typical fitment includes, but may not be limited to:

• Citroën C4 Picasso
• Citroën C5 (X7)
• Citroën C8
• Peugeot 3008 I
• Peugeot 407
• Peugeot 5008 I
• Peugeot 807

Function And Symptoms

The throttle body meters intake air according to accelerator demand and engine management commands. It contains the throttle plate and associated sensors/actuators that feed position data to the ECU. When the unit degrades or malfunctions, common symptoms include rough or unstable idle, stalling at low revs, poor throttle response, increased fuel consumption, and illumination of the Check Engine Light with related fault codes.

Why The Part Fails Most Often

Failure is most commonly caused by carbon and oil buildup on the throttle plate and bore, which restricts movement or interferes with position sensors. Other frequent causes include electrical faults (damaged wiring or connector corrosion), failed potentiometer or stepper motor inside the assembly, vacuum leaks at the intake flange, and physical wear from age and high mileage.

Installation And Recommendations

Proper installation increases service life and ensures predictable engine behaviour. Recommended steps and tips for replacement:

• Before starting work, disconnect the battery to remove electrical risk and avoid unintended throttle activation.
• Remove intake hoses and any obstructing components to access the throttle body. Unplug the electrical connector and any vacuum lines attached to the unit.
• Unscrew the throttle body mounting bolts, remove the old gasket and clean the mating surface on the intake manifold.
• Fit a new gasket when installing the replacement unit. Reconnect electrical and vacuum lines, refit intake hoses and ensure all clamps are secure.
• After installation, clear stored fault codes and perform an idle adaptation procedure if required by the vehicle ECU. Inspect for air leaks and proper throttle operation before road testing.

Useful checks: Scan for fault codes to identify throttle position or actuator faults, inspect wiring and connectors for corrosion or damage, and check intake tract for excessive oil or soot that may indicate EGR or PCV issues.

Additional Notes For Professionals

This unit is supplied to match OEM references and is intended for fitment by technicians familiar with PSA petrol/diesel systems. When replacing the throttle body, also consider inspecting related components such as the intake boot, PCV system and EGR cooler as sources of contamination.

Why Choose This Part

Using a correctly referenced throttle body (9670373980 / 9677515880 / 0345F4) restores correct air metering and drivability for affected 2.0 HDi RH02 engines. The part is suitable for both workshop replacements and competent DIY repairs where OEM-level fitment and compatibility with the listed models are required.