This Bosch ME7.4.4 Engine Control Unit (ECU) is a direct-fit engine management unit commonly referenced by product numbers such as 0261207860, 9650347880 and 9647972980. Intended for professional technicians and experienced DIYers, this unit controls fuel injection, ignition timing and emissions functions on compatible Citroën 1.6 NFU engines. Replacing a faulty ECU restores engine responsiveness, stable idle and reliable diagnostic communication. Many customers search for this part by its product codes, so the listed numbers below help you confirm fitment quickly.

Technical Information

• Manufacturer: Bosch
• Model: ME7.4.4
• Product Codes: 0261207860, 9650347880, 9647972980
• Other Numbers: 1940GX, 1940GY, 261207476, 261207860, NFP
• Compatible Models: Citroën C2 and C3 1.6 16V NFU (80 kW). May Fit Some C3 Pluriel Variants—check engine type NFU and part numbers for confirmation.

Installation

Basic replacement procedure for technicians and competent DIYers:

• Disconnect The Negative Battery Terminal Before Any Work.
• Access The ECU By Removing Any Required Trim, Covers Or Brackets.
• Label And Carefully Unplug All Electrical Connectors To Avoid Misconnection.
• Remove Mounting Fasteners And Extract The Old Unit.
• Fit The Replacement ECU, Secure Fasteners And Reconnect All Plugs Firmly.
• Reconnect The Battery And Carry Out Cloning Or Coding/Initialization As Required (see Important Section Below).

Installation And Coding – Important

– The Unit Is Used And Is “Paired” With The Original Vehicle (VIN/PIN/Keys).
– Options To Make The Unit Operational:
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 Carried Out By A Specialist With PSA Service Equipment (DiagBox/Lexia/PP2000).
– Before Removal/Installation Always Disconnect The Battery And Follow The Manufacturer’s Procedure To Avoid Damaging The Unit.

Mounting Recommendations

• Use Proper Torque For Mounting Bolts And Avoid Over-Tightening.
• Inspect Connector Pins For Corrosion Or Bent Pins Before Reconnection.
• Protect The Unit From Moisture And Dirt During Installation; Ensure Gaskets And Seals Are Intact.
• Observe ESD Precautions When Handling The ECU To Prevent Electronic Damage.

Why The Part Most Commonly Fails

ECU Failures Are Typically Caused By External Factors Rather Than Wear: Water Ingress And Corrosion At Connectors, Thermal Stress And Overheating, Voltage Spikes From Faulty Charging Systems Or Jump-Starting, And Mechanical Damage During Removal/Installation. Faulty Sensors Or Wiring Faults Can Also Cause The Engine To Operate Erratically, Leading To ECU Errors. There Is No Fixed Replacement Interval; Failures Usually Occur After Years In Service Or Following An Electrical Event.

Additional Notes For Professionals

This Unit Restores Full Engine Management When Correctly Cloned Or Initialized. For A Reliable Result Use Proper Diagnostic Tools, Follow Safe Electrical Procedures And Reprogram Immobilizer/Keys If Required. If You Intend To Swap Units, Plan For Cloning Or Professional Coding To Ensure All Vehicle Functions Return To Normal.

This ECU is compatible with several models, including the Citroën C3 1.6 16V NFU Pluriel, offering a perfect solution for diagnostics and control of various engine functions.

Common issues leading to ECU failure include electrical faults, overheating, or software corruption. Regular checks and maintaining optimal operating conditions can help extend the lifespan of this essential component.

To replace the ECU, it is crucial to follow proper guidelines, ensuring that the vehicle’s battery is disconnected, and the new unit is programmed to match the vehicle’s specifications.

Technical Information:

• Manufacturer: Bosch
• Model: ME7.4.4
• Product Codes: 0261207860, 9651812480, 9647972980
• Other Numbers: 1940GX, 1940GY