Over time, engine control units may experience failures due to electronic component aging, environmental factors, or electrical surges, leading to poor engine performance or even failure to start. Replacing a faulty ECU can restore your vehicle’s performance and efficiency.

Installation of the Bosch ME7.4.4 ECU is straightforward; it is typically mounted in the engine compartment and connects directly to the engine management system. Ensure you follow the manufacturer’s guidelines during installation to avoid issues.

Technical Information:

• Manufacturer: Bosch
• Model: ME7.4.4
• Product Codes: 0261206606, 9653702380, 194063
• Other Numbers: 194064, 9638765980

This ECU is not only highly functional but also designed for durability and longevity, making it a necessary replacement part for both professional mechanics and DIY enthusiasts.

Function And Capabilities

The ME7.4.4 ECU manages fuel injection timing and duration, ignition timing, throttle control, lambda (oxygen sensor) regulation and communication with other vehicle modules. It coordinates sensors and actuators to maintain engine performance, emissions control and drivability under varying operating conditions.

Typical Applications

Commonly fitted to PSA vehicles using the NFU (TU5JP4) 1.6 16V engine family. Typical models include Citroen Xsara, Citroen C2, Citroen C3, Citroen Berlingo and Peugeot 206, Peugeot 307, Peugeot Partner. Always verify the part numbers and software/hardware labels on your original ECU before purchase to confirm compatibility.

Installation And Programming

Before removal or installation disconnect the vehicle battery. After physical replacement the unit commonly requires immobilizer pairing with the vehicle Body System Interface (BSI) and telecoding/programming according to the vehicle equipment using diagnostic tools (Lexia/PP2000/DiagBox or equivalent). As an alternative, transferring the original unit’s EEPROM/flash contents to the replacement ECU preserves immobilizer and configuration data. Without correct pairing or data transfer the vehicle may not start.

Failure Symptoms And Causes

Typical symptoms of a faulty ME7.4.4 ECU in NFU engines include intermittent stalling, misfires, unstable idle, communication errors with diagnostic equipment or a complete no-start condition. Common causes include prolonged vibration, moisture ingress in the engine bay, or electrical surges/overvoltage. When replacing the ECU check power and ground connections, ignition coils, relays and fuses to avoid recurring faults.

Technical Information

• Manufacturer: Bosch (ME7.4.4)
• Model: PSA 1.6 16V NFU (TU5JP4); removed from Citroen Xsara 1.6 16V 80 kW
• Product Codes: 0261206606, 9651396380, 194063, 194064
• Other Numbers: 9638765980, 0 261 206 606

For correct selection, always compare all listed product codes and the ME7.4.4 designation with the label on your original ECU. If uncertain about compatibility consult professional diagnostics. A properly selected and configured unit will restore full fuel injection and ignition control for NFU engines.