Part description

This power steering unit is a used original part intended for Citroën C2, Citroën C3 and Citroën C3 Pluriel cars. It is an important electrical component of the power steering system that customers often search for by serial number. If you are looking for a spare part under the designation 9659514180, 400693 or 400692, this is the model.

The part is particularly suitable for repairs, when it is necessary to replace the original malfunctioning or damaged servo control unit with an original used part without unnecessary compromises. For auto mechanics and more experienced do-it-yourselfers, the main advantage is easier identification according to the part code and the original PSA marking.

Technical information

• Manufacturer: Stellantis Citroën Peugeot
• Model: Citroën C2, Citroën C3, Citroën C3 Pluriel
• Other numbers: 9659514180, 400693, 400692, NFP

Product codes

Product codes: 9659514180, 400693, 400692

• Citroën C2
• Citroën C3
• Citroën C3 Pluriel

Installation recommendations

This part is a power steering control unit. The exact installation procedure may vary according to the specific car design, so below is a general and typical procedure for replacing the electrical control unit.

1) Before assembly

• Check that all markings on the original and replacement parts match, especially 9659514180, 400693 and 400692.
• Perform a visual inspection of the connectors, pins, attachment points and condition of the unit packaging.
• Check that the used part is not mechanically damaged, clogged or with visible contact corrosion.
• Before starting work, disconnect the battery and wait until the car’s electrical system is safely disconnected.

2) Necessary tools and materials

• Basic set of hand tools
• Screwdrivers and ratchet tools
• Plastic pry bar to remove covers if needed
• Electrical contact cleaner
• Work gloves and lighting
• Diagnostic equipment to check function afterwards, if available

3) Step-by-step assembly procedure

1. Secure the vehicle against movement and turn off the ignition.
2. Disconnect the battery and wait the prescribed time according to normal service practice.
3. Access the space to the unit by removing covers or other obstructing parts, if present in the vehicle.
4. Check carefully the wiring and the condition of the connectors before actually disconnecting.
5. Disconnect the electrical connectors without using excessive force to avoid damaging the latches.
6. Remove the original drive from its storage.
7. Compare the old and new part by number, connector shape and mounting.
8. Place the replacement unit in the correct position and fix it in the original way.
9. Connect the connectors so that they are fully seated and properly secured.
10. Check that the wiring is not stretched, broken or pinched.
11. Reinstall all covers and previously removed parts.
12. Connect the battery and perform a basic system function check.
• 4) Post-assembly checks and test drive/function verification
  • After installation, check for error messages or non-standard behavior of the power steering.
  • Check the smoothness of the steering when standing still and when driving slowly.
  • If you have diagnostics available, perform a control unit check and basic verification of proper system communication.
  • During the test drive, observe whether the steering works smoothly, without assistance failures and without unusual manifestations.

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

  • Exchanging a part based on an inaccurate number – always compare all numbers from the original unit.
  • Damage to the connector or pins – disconnect and connect the connectors carefully and without prying with metal tools.
  • Assembly without checking the wiring – before installing a new unit, check the harness, connectors and any signs of oxidation.
  • Insufficient part fixing – the unit must be properly seated and firmly attached.
  • Skip the output check – always verify the function of the system in practice after assembly.

  Reasons why the part is damaged

  • voltage fluctuations in the on-board network or power supply problems,
  • moisture, oxidation and seeping into connectors or electronics,
  • cabling damage and transient resistances in electrical connections,
  • mechanical stress, vibration or unprofessional handling during the previous repair,
  • long-term age and normal wear and tear of electronic components.
  ]]>