Part description

This Bosch airbag unit is a used auto part designed for the Peugeot 207. It is an important electronic component of the passive safety system that processes signals and cooperates with the car’s airbag system. Parts of this type are often searched primarily by serial number, so the given codes are essential for correct identification.

For auto mechanics and home repairers, the advantage is that it is a fully functional part that can serve as a replacement for a damaged or non-functional original unit. When choosing, it is always important to compare the markings on the existing part with the offered piece.

Technical information

• Manufacturer: Bosch
• Model: Peugeot 207
• Other numbers: 6546EH, 6546EG

Product codes

• Product codes: 9675068880, 0285010828, 6546EH, 6546EG
• Models: Peugeot 207

Installation recommendations

This part is an airbag unit, i.e. an electronic vehicle safety element. The exact replacement procedure may vary according to the specific design of the car, so below we present a generally valid and safe procedure typical for this type of part.

1) Before assembly

• Check that all the numbers on the original and new part match.
• Visually check the condition of the connectors, pins and body of the unit. They should not be damaged, oxidized or mechanically deformed.
• Compare the attachment, the shape of the connectors and the overall design of the part with the old piece.
• Disconnect the battery and wait a reasonable amount of time according to normal service practice before any manipulation of the airbag system to reduce the risk of damage to the system.

2) Necessary tools and materials

• A common set of hand tools
• Suitable bits and sockets
• Plastic pry bar to remove covers if needed
• Cleaning agent for electrical connectors
• Clean lint-free cloth
• Diagnostic equipment for subsequent system control

3) Step-by-step assembly procedure

1. Park the vehicle in a safe place, turn off the ignition and secure the vehicle against movement.
2. Disconnect the battery and allow the system to rest before starting work according to general service practice for working with airbag components.
3. Access the unit by removing the necessary covers or trims, if necessary for the vehicle design.
4. Carefully disconnect the electrical connectors from the old unit. Never pull on the wiring, but only on the body of the connector.
5. Unfasten the original unit and remove without impact or rough handling.
6. Compare the old and new part side by side one more time, especially the codes, connectors and mounts.
7. Clean the contact surfaces and possibly also the connectors if they are dirty.
8. Sit the new unit into place and secure it so that it sits properly in the mounting position.
9. Connect the electrical connectors and check that they are properly engaged and free of play.
10. Reinstall all removed covers and trim.
11. Connect the battery.
12. Perform a system check using appropriate diagnostics to verify that there are no errors related to the airbag system.
• 4) Post-assembly checks and function verification
  • Check that a standard system check is performed when the ignition is turned on.
  • Verify that there are no warning lights or messages indicating an airbag system malfunction.
  • Check the status of the unit and any stored faults using diagnostics.
  • After installation, observe the behavior of the vehicle during normal operation and verify that no error messages are returned.

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

  • Exchanging a part based on an inaccurate number – always compare all markings on the label.
  • Manipulation without disconnecting the battery – this is an essential safety step for airbag systems.
  • Damage to the connectors – disconnect the connectors gently and without using force.
  • Insufficient seating of the unit – check for proper position and secure fit.
  • Omission of the diagnostic check – after installation, it is advisable to always check the status of the system with diagnostics.

  Reasons why the part is damaged

  • consequences of an accident or activation of the airbag system,
  • intrusion of moisture into electronics or connectors,
  • corrosion of contacts and long-term effect of impurities,
  • damage due to unprofessional disassembly or assembly,
  • defect in the electrical installation of the vehicle,
  • mechanical damage to the body of the unit or connector part.
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