Description
Throttle Body 2.0 HDI RHK For Citroën And Peugeot Vehicles
The throttle body for the 2.0 HDI RHK engine is a direct-fit electronic component designed for Citroën and Peugeot models equipped with the 2.0 HDI diesel powerplant. This unit controls the amount of intake air entering the engine by regulating the throttle plate position via an electric actuator and sensors. The part is commonly referenced by product numbers 9659041880 and 0345E6 and is frequently searched by technicians and DIYers under these codes.
Why This Part Matters
A properly functioning throttle body ensures accurate air metering, stable idle, prompt throttle response and correct interaction with the engine control unit (ECU). On 2.0 HDI RHK engines the throttle body cooperates closely with the EGR system, turbocharging controls and idle regulation routines — faults here can cause elevated emissions, rough idle, loss of power or limp-home mode.
Compatibility
Fits vehicles with the 2.0 HDI RHK engine. Typical applications include:
- Citroën C8
- Peugeot 807
Searchable identifiers: 9659041880, 0345E6, RHK, 2.0 HDI.
Symptoms Of A Faulty Throttle Body
- Erratic or high idle speed
- Poor throttle response or hesitation under acceleration
- Frequent stalling at idle
- Check Engine Light (engine management warnings related to throttle position or air intake)
- Reduced engine power or activation of limp mode
Most Common Reasons For Failure
The throttle body on 2.0 HDI engines typically fails or malfunctions due to:
- Carbon and soot buildup on the throttle plate and bore, restricting movement
- Electrical faults in the actuator or throttle position sensor (TPS)
- Contaminated or corroded electrical connectors and wiring
- Vacuum leaks or intake system leaks affecting control accuracy
- Mechanical wear of the shaft and bearings over time
Installation Recommendations
Follow these general guidelines for safe replacement and reliable operation:
- Disconnect the negative battery terminal before starting work to avoid electrical damage.
- Remove intake hoses and airbox to access the throttle body. Unplug the electrical connector and any vacuum lines carefully.
- Remove mounting bolts, replace the throttle body along with a new gasket to ensure an airtight seal.
- Reinstall components in reverse order and ensure connectors are clean and clipped securely.
- After installation, perform the manufacturer’s throttle adaptation or ECU relearn procedure as specified in the workshop manual to restore idle control and throttle mapping.
- Do not lubricate the throttle plate; clean mating surfaces and replace the intake gasket. Use only recommended cleaners if cleaning nearby components.
- If unsure about electrical diagnostics or relearn procedures, follow workshop documentation or consult a professional technician.
Technical Information
- Manufacturer: Citroën / Peugeot (Stellantis)
- Model: 2.0 HDI RHK
- Product Codes: 9659041880, 0345E6
- Other Numbers: RHK, 2.0 HDI
Maintenance Tips And Expected Lifespan
Throttle bodies on diesel engines can remain serviceable for many years, but performance commonly declines after heavy mileage or in engines with significant EGR and soot contamination. Regular intake and throttle inspections during routine service, keeping the air filter in good condition and reducing EGR-related soot accumulation will prolong service life. Many failures are prevented by timely cleaning and correct diagnosis of related systems (EGR, PCV, intake leaks).
This throttle body is aimed at professional mechanics and skilled DIYers who need a reliable replacement part identified by OEM numbers. Use the listed product codes when searching to ensure correct fitment for Citroën and Peugeot vehicles equipped with the 2.0 HDI RHK engine.
