Description
Engine Control Unit BOSCH ME7.4.4 for Citroën C2, C3 1.6 16V NFU 80 kW
This Bosch ME7.4.4 Engine Control Unit (ECU) is a direct-fit electronic brain for Citroën 1.6 16V NFU engines. Ideal for professional workshops and experienced DIY mechanics, this ECU appears commonly under product codes 0261207860, 9650347880 and 9647972980 and is used on a range of Stellantis petrol models. Replace a faulty unit to restore stable engine management, eliminate limp-home mode or resolve intermittent drivability problems. The listing includes known reference numbers and compatibility identifiers to help rapid search and fitment.
Key Benefits
– Restores Proper Engine Management: Regulates fuel injection, ignition timing and emissions control for smooth running and correct performance.
– Direct Replacement For NFU 1.6 16V Engines: Matches the Bosch ME7.4.4 calibration used on many Citroën platforms.
– Saves Diagnostic Time: Known part numbers and cross-references speed up identification for workshops and parts departments.
Compatibility And Fitment
Compatible Models: Citroën C2, Citroën C3, Citroën C3 Pluriel with 1.6 16V NFU (80 kW) engine. This ECU is intended for vehicles using the Bosch ME7.4.4 engine management system. Always confirm engine code NFU before installation.
Symptoms Of A Failing ECU
– Engine Won’t Start Or Cranks Without Running
– Irregular Idle, Stalling Or Misfires
– Reduced Power Or Limp Mode Activation
– Persistent Check Engine Light Or Multiple Fault Codes
– Increased Fuel Consumption Or Emission Faults
How Replacement Is Performed
Typical replacement steps performed by a trained technician or knowledgeable DIY mechanic:
- Disconnect Battery: Always disconnect the negative battery terminal before starting work.
- Access And Remove Unit: Locate the ECU (engine bay or passenger footwell depending on model), remove mounting bolts and unplug wiring connectors carefully.
- Transfer Accessories If Needed: Transfer any anti-theft or immobiliser components if they are separate from the unit.
- Install New Unit: Mount the replacement ECU, reconnect connectors and secure all fastenings.
- Program Or Initialise: Depending on the unit status, cloning or coding may be required to restore full functionality (see Installation And Coding section below).
Installation And Coding — Important
– The Unit Is Used And Is “Paired” With The Original Vehicle (VIN/PIN/Keys).
– Options To Enable 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 Procedure To Avoid Damaging The Unit.
Technical Information
- Manufacturer: Bosch
- Model: ME7.4.4
- Product Codes: 0261207860, 9650347880, 9647972980
- Other Numbers: 1940GX, 1940GY, NFP
Installation Recommendations
– Use Appropriate Diagnostic Equipment: For programming, adaptation and fault clearing use PSA-compatible tools (DiagBox/Lexia/PP2000) or professional workshop-grade scanners.
– Protect Connectors: Inspect and clean connector pins and harness grommets before installation to prevent poor contact and moisture ingress.
– Handle With Care: Avoid static discharge and mechanical shock to the unit; store and fit in a dry, clean environment.
– Follow Safety Procedure: Always disconnect the battery and follow vehicle manufacturer torque and removal/installation instructions.
Most Common Failure Causes
– Heat And Vibration: Long-term exposure can damage solder joints and electronic components.
– Moisture And Corrosion: Water ingress or corrosion on connectors leads to intermittent faults and signal loss.
– Electrical Surges: Faulty alternator or jump-start incidents may cause voltage spikes that damage internal electronics.
– Sensor Or Wiring Faults: Repeated faults from failed sensors or shorted wiring can overload the ECU or produce persistent error states.
Who Should Fit This Part
Recommended For Professional Mechanics And Skilled DIY Enthusiasts Familiar With Engine Management Systems. Programming or cloning steps require specialist tools and experience to ensure the vehicle’s immobiliser and engine management operate correctly after replacement.
