Description
Engine Control Unit BOSCH for the first generation of PEUGEOT 107 CITROËN C1. For vehicle with robotized gearbox, EURO 5.
This Bosch Engine Control Unit (ECU) is designed for the first generation Peugeot 107 and Citroën C1 equipped with the 1.0i 1KR engine and a robotized (automated manual) gearbox, meeting Euro 5 emission standard. Ideal for professional workshops and experienced DIY mechanics looking for a direct replacement or a ready-to-program unit. Commonly searched by product codes 0261S07617 and 89661-0H230, this ECU restores engine management functions including fuel injection, ignition timing, idle control and emission regulation.
Key Benefits
Reliable Bosch hardware Built To Integrate With Stellantis Powertrain Electronics. Restores Full Engine Management Functions. Compatible With Robotized Gearbox Control Logic. Often Sought By Part Number Searches: 0261S07617, 89661-0H230, B000727680.
Compatibility And Application
Fits First Generation Peugeot 107 And Citroën C1 Models With 1.0i 1KR Engine And Robotized Gearbox (Euro 5). Also Cross-Referenced In Stellantis Parts Listings. Always Verify Part Numbers (0261S07617 / 89661-0H230 / B000727680) Against Vehicle Requirements Before Installation.
How Replacement Is Performed
Typical Replacement Steps For A Mechanic Or Experienced DIYer:
- Disconnect The Vehicle Battery Before Any Work To Avoid Short Circuits And Damage To The Unit.
- Locate And Access The ECU (Usually In The Engine Bay, Mounted Near The Battery Or Gearbox On First Generation 107/C1 Models).
- Carefully Unplug Wiring Connectors And Remove Mounting Bolts.
- Transfer The Unit And Secure The New ECU With Correct Fasteners; Reconnect All Plugs Ensuring Clean Contacts.
- Program Or Clone The ECU Data As Required (See Mounting And Coding Section Below).
Technical Information
- Manufacturer: Bosch
- Model: Peugeot 107 / Citroën C1 First Generation
- Product Codes: 0261S07617, 89661-0H230
- Other Numbers: B000727680, 1.0i 1KR, Euro 5
Mounting And Coding – Important
– The Unit Is Used And Is “Paired” With The Original Vehicle (VIN/PIN/Keys).
– Options To Put The Unit Into Operation:
1) Cloning Data From The Old Unit (EEPROM/Flash) – After Cloning The Unit Is Plug And Play.
2) Virginization And Subsequent Initialization/Telecoding Via DiagBox (Or Online) + Key Adaptation.
– Recommended To Be Performed By A Specialist With PSA Service Equipment (DiagBox/Lexia/PP2000).
– Before Removal/Installation Always Disconnect The Battery And Follow Manufacturer Procedures To Avoid Damaging The Unit.
Recommendations For Installation
Handle The ECU With Care To Avoid Electrostatic Discharge And Mechanical Shock. Ensure Connector Pins Are Clean And Dry; Corroded Pins Should Be Cleaned Or Replaced. If Cloning Is Planned, Have The Donor Unit Present And Use Reliable EEPROM/Flash Tools Or Dealer-Level Software. After Installation, Verify Communication With Diagnostic Tool And Perform Any Required Adaptations (Immobilizer/Keys/Throttle Learning). Follow Manufacturer Safety Procedures And Use Proper Torque For Fasteners.
Why This Part Typically Fails
ECU Failures Are Often Caused By External Factors Rather Than Normal Wear:
- Water Ingress Or Moisture Leading To Corrosion Of Connectors And Circuitry.
- Electrical Issues Such As Voltage Spikes, Poor Grounding Or Incorrect Jump-Starting.
- Thermal Stress And Solder Joint Fatigue From Long-Term Heating/Cooling Cycles.
- Damaged Wiring Harness Or Connector Pins Causing Intermittent Faults.
- Immobilizer/Pairing Problems Following Replacement Without Proper Coding Or Cloning.
Most Units Remain Operational For Many Years If Protected From Water And Electrical Faults. Prompt Diagnosis Of Related Sensors Or Wiring Issues Can Prevent Repeat Failures.
