Part description

This used Bluetooth module serves as a phone, Bluetooth and USB connection unit in Citroën and Peugeot cars. It is an electrical component from the control unit category, which customers often search for according to the exact designation of the part. If you are looking for a replacement for the original defective piece, matching the product numbers is especially important.

The unit is especially suitable for repairs to the original connectivity system in the car, when it is necessary to restore the phone connection function or communication via Bluetooth or USB. For auto mechanics and home repairmen, the possibility of comparing according to the label and codes directly on the part is an advantage.

Technical information

• Manufacturer: Stellantis Citroën Peugeot
• Model: Citroën C4 PICASSO, Citroen C5 X7, Peugeot 308
• Other numbers: 6574TS, 6593L0, 1607242180

Product codes

Product codes: 9666760080, S180073002 J, 6574TS, 6593L0, 1607242180

Installation recommendations

This part is an electronic connectivity control unit. The exact assembly steps may vary depending on the specific model and make of the car, so below is a general procedure typical for this type of part.

1) Before assembly

• Check that all markings on the original and new part match.
• Compare the connectors, mounts, shape of the unit and any manufacturer markings.
• Inspect the used part for damage to the packaging, connectors, pins or holders.
• Before starting work, disconnect the battery according to normal service practice for electronic parts.

2) Necessary tools and materials

• Basic set of hand tools
• Tools for removing interior plastics or covers, if needed
• Clean cloth
• Preparation for gentle cleaning of connectors suitable for electrical installation
• Diagnostic equipment if the vehicle requires initialization or setup after assembly

3) Step-by-step assembly procedure

1. Switch off the ignition and secure the vehicle against unwanted movement.
2. Disconnect the battery and wait a reasonable time according to normal practice when working with car electronics.
3. Access the space with the original unit according to the design of the specific vehicle.
4. Disconnect the electrical connectors carefully, without pulling on the wiring.
5. Remove the original unit from the bracket or mount.
6. Compare the old and new piece including all numbers, connectors and mechanical design.
7. If necessary, gently clean the contact surfaces and check the condition of the connectors.
8. Place the used module in place and fix it in the same way as the original part.
9. Carefully connect all connectors so that they fit properly and are secured.
10. Reinstall all removed covers and interior parts.
11. Connect the battery.
12. Turn on the ignition and verify that the unit is communicating and that the required Bluetooth/Phone/USB functionality has been restored.
• 4) Post-assembly checks and function verification
  • Check if the unit reports no obvious faults after turning on the car.
  • Verify the basic function of the Bluetooth connection, phone and USB if the vehicle is equipped with this function.
  • Monitor for communication dropouts, reboots, or connection failures.
  • If necessary, carry out a diagnostic check and basic settings according to the car’s equipment.

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

  • Part exchange by incomplete number – always compare all labels on the label.
  • Damage to connectors or pins – disconnect and connect connectors gently and without violence.
  • Assembly without disconnecting the battery – this increases the risk of damage to electronic parts.
  • Insufficient seating of the connector – always check for proper locking after connection.
  • Underestimation of subsequent diagnostics – control units may require a function check or adjustment after assembly.

  Reasons why the part is damaged

  • age and normal wear and tear of electronic components
  • moisture, condensation or leakage into the unit space
  • damage to connectors, pins or wiring
  • voltage fluctuations in the on-board network
  • unprofessional disassembly or assembly
  • internal electronic fault causing dropouts of Bluetooth, phone or USB communication
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