Description
Throttle Body for 2.0 HDi RHR Engines for Citroën and Peugeot Vehicles
Product Overview
This throttle body is designed for 2.0 HDi RHR diesel engines used in selected Citroën and Peugeot models. It regulates intake air flow and communicates position data to the engine management system to ensure stable idle, correct throttle response and efficient combustion. Suitable For Professional Mechanics And Experienced DIY Enthusiasts Who Work On Stellantis Diesel Engines.
How It Works
The throttle body controls the amount of air entering the intake manifold. On modern HDi engines the unit often contains an electric actuator (stepper motor or servo) and a position sensor so the ECU can precisely manage idle speed, load changes and regeneration events. Malfunction of the throttle body directly affects idle stability, acceleration and emissions.
Common Symptoms And Failure Modes
- Irregular Or High/Low Idle
- Poor Throttle Response Or Reduced Power
- Engine Management Light (EML) Or Fault Codes Related To Throttle Position / Air Flow
- Stalling After Idle Or During Low-Speed Maneuvers
Most frequent causes: carbon and soot deposits in the throttle bore (common on diesel engines with EGR), worn or failing actuator/position sensor, vacuum leaks on intake connections and electrical connector corrosion or wiring faults.
Replacement Interval And Durability
There Is No Fixed Replacement Interval. Lifespan Depends On Driving Conditions, EGR/Soot Management And Maintenance. Many Units Begin Showing Problems After 100,000–200,000 km In Vehicles With Heavy City Use Or Inadequate EGR/DPF Maintenance. Regular Inspection And Cleaning Can Prolong Service Life.
Installation Recommendations
- Always Disconnect The Battery Before Removing Or Installing The Throttle Body And Follow Manufacturer Procedures To Avoid Electrical Damage.
- Inspect And Replace The Throttle Body Gasket/Seal When Installing A New Unit To Ensure Proper Air Tightness.
- Clean Surrounding Intake Areas And Remove Carbon Build-Up On The Intake Manifold Flange.
- Check Wiring Harness And Connector Pins For Corrosion Or Damage; Repair As Needed.
- After Fitment, Perform Throttle Adaptation/Idle Relearn Using A Diagnostic Tool Compatible With Stellantis Vehicles (DiagBox/Lexia/Equivalent) To Ensure Correct Idle And Response.
Why The Part Commonly Fails
Diesel Engines Produce Soot That Accumulates In The Throttle Bore Over Time, Restricting Movement And Contaminating Position Sensors. Additionally, The Electrically Driven Actuator Or Its Position Sensor Can Wear Or Fail. Intake Leaks And Damaged Connectors Exacerbate Symptoms. Inadequate Maintenance Of EGR And DPF Systems Accelerates Carbon Deposition.
Technical Information
- Manufacturer: Stellantis
- Model: 2.0 HDi RHR; Fits Citroën C4 Picasso, Citroën C5, Citroën C5 X7, Citroën C8, Peugeot 407, Peugeot 807
- Product Codes: 9660110780, 0345E8
- Additional Numbers: 34500000000
Fitment And Notes
Confirmed For 2.0 HDi RHR Engine Applications In The Listed Citroën And Peugeot Models. Always Verify Engine Code And Part Number On The Existing Unit Before Installation. This Throttle Body Is Intended To Replace Units Bearing The Above Product Codes.
Professional Tip
If You Experience Recurrent Carbon Build-Up, Inspect EGR And DPF Systems And Consider Professional Cleaning Of The Intake System. When Replacing The Throttle Body Because Of Sensor Or Actuator Failure, Also Verify That Related Engine Management Faults Are Cleared And That The ECU Has Successfully Relearned The New Unit’s Parameters.
