Part description

This Bosch EDC16C3 engine control unit is a used original car part intended for Citroën Peugeot cars, with Peugeot 307 1.4 HDI listed in the supplied documents. It is an important electronic component of the engine management system that processes data from sensors and controls functions related to injection and engine operation.

The part is often searched by serial number, so we also list 0281011090, 9654984380, 9647785580, 1940WN and 1940WP. For auto mechanics and home repairers, the matching of these codes is one of the main data when choosing the right unit.

Technical information

• Manufacturer: BOSCH
• Model: EDC16C3
• Other numbers: 0281011090, 9654984380, 9647785580, 1940WN, 1940WP, NFP

Product codes

• Product codes: 0281011090, 9654984380, 9647785580, 1940WN, 1940WP
• Models from labels and documents: Peugeot 307

Installation recommendations

This part is an injection control unit, so when replacing it, you need to proceed carefully and with respect to the vehicle’s electronics. The exact procedure may vary depending on the specific car model, but generally the following applies to this type of part:

1) Before assembly

• Check that all markings on the original and new part match, especially 0281011090 and 9654984380.
• Compare the type of connectors, their number, the shape of the unit case and the condition of the contacts.
• Check whether the packaging of the unit is not mechanically damaged, deformed or affected by moisture.
• Before starting work, disconnect the battery and wait according to normal service practice to minimize the risk of damage to the electronics.

2) Necessary tools and materials

• Basic set of hand tools
• Suitable attachments for disassembling the unit’s mounting
• Cleaning agent for electrical contacts
• Protective gloves
• Diagnostic equipment for subsequent adjustment and function check

3) Step-by-step assembly procedure

1. Turn off the ignition and disconnect the battery.
2. Provide access to the original control unit according to the design of the car.
3. Carefully disconnect all electrical connectors without using excessive force.
4. Unmount the old unit and remove it from the vehicle.
5. Compare old and used part by label, connectors and design.
6. If necessary, gently clean the connectors and check their condition.
7. Place the replacement unit in place and fix it in the same way as the original piece.
8. Connect all connectors so that they are properly seated and secured.
9. Connect the battery and do a basic power check.
10. Check the unit’s communication with the vehicle using diagnostics.
11. If necessary, perform the appropriate software customization according to the vehicle equipment.
12. After successful installation, verify the operation of the engine and related systems.
• 4) Post-assembly checks and test drive/function verification
  • Check if the unit is communicating correctly with the diagnostics.
  • Verify stable engine start and regular operation.
  • Watch for error messages or traffic irregularities.
  • After a short test drive, recheck the stored faults and the overall functionality of the system.

  5) The most common assembly mistakes + how to avoid them

  • Interchanging a part with a different designation – always carefully compare all numbers on the label.
  • Damage to connectors when disconnecting – release connectors carefully and without prying.
  • Connecting the unit with the battery connected – always disconnect the vehicle power supply before working.
  • Underestimating the condition of the contacts – dirty or oxidized contacts can cause malfunction even with the correct part.
  • Omission of the diagnostic check after installation – after replacement, it is always advisable to check the communication and the function of the system.

  Assembly and Coding – Important

  • The unit is used and is “paired” with the original car (VIN/PIN/keys).
  • Commissioning options:
    1. Cloning data from the old drive (EEPROM/Flash) – after the clone, the drive is plug and play.
    2. Virginization and subsequent initialization/telecoding via DiagBox (possibly online) + customization of keys.
  • Recommended to be performed by an expert with PSA service equipment (DiagBox/Lexia/PP2000).
  • Always disconnect the battery before disassembly/assembly and follow the manufacturer’s procedure to avoid damaging the unit.

  Reasons why the part is damaged

  • Moisture and oxidation – water penetration or long-term moisture can damage electronics and connectors.
  • Surge in the electrical system – voltage fluctuations, charging problems or unprofessional interventions in the electrical installation can damage the unit.
  • Mechanical stress – vibrations, impacts or rough handling during disassembly and assembly.
  • Damaged connectors and cabling – poor contact can lead to communication failures and subsequent malfunctions.
  • Age and operational wear and tear – electronic parts may experience internal component failure after years of operation.
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