Part description

This used passenger airbag is designed for Citroën C4 cars and is a suitable solution for repairing a damaged or non-functional interior element. Parts from the area of ​​airbags are often also searched for by production numbers, so it is important to pay attention to the matching of the markings on the original and replacement part.

According to the documents supplied, it is a design with 2 igniters. This is essential information during replacement, because with safety systems, the correct design of the part is crucial for error-free assembly and subsequent function.

Technical information

• Manufacturer: Stellantis Citroën Peugeot
• Model: Citroën C4 first series
• Other numbers: 9646339680, 8216GJ, NFP

Product codes

• Product codes: 9646339680, 8216GJ
• Models: Citroën C4

Installation recommendations

Generally/typically for this type of part, the installation of the airbag must be done with the utmost care and the exact procedure may vary according to the specific design of the car. A safe work procedure must always be followed for safety features.

1) Before assembly

• Check that all numbers and markings on the old and new parts match.
• Compare the shape, attachment points, connectors and overall design of the part.
• Check that the used airbag is not mechanically damaged, does not have cracks, deformations, traces of improper handling or damaged connectors.
• Before starting work, disconnect the battery and leave the car without power for the necessary time to minimize the risk of unintentional activation of the system.

2) Necessary tools and materials

• A common set of hand tools
• Suitable tools for removing interior panels
• Clean work gloves
• Clean cloth for cleaning the contact surfaces
• Possibly, diagnostic equipment to check the system after assembly

3) Step-by-step assembly procedure

1. Secure the vehicle against movement and turn off the ignition.
2. Disconnect the battery and wait until the system is without power.
3. Remove the necessary covers or parts of the interior so that access to the original airbag is safe and without using excessive force.
4. Carefully disconnect the electrical connectors of the original part, without pulling on the wiring.
5. Unfasten the old airbag and remove the part.
6. Compare the removed part with the replacement part by shape, connectors and codes.
7. Clean the mating surfaces and check the mounting area for dirt or damage.
8. Place the replacement airbag in the correct position without forcing it.
9. Connect the connectors so that they are firmly and properly secured.
10. Reinstall the fasteners and subsequently the dismantled interior parts.
11. Reconnect the battery.
12. After turning on the system, check if the airbag system malfunction warning does not appear.
• 4) Post-assembly checks and test drive/function verification
  • Check that all covers and interior parts are properly seated.
  • Make sure the connectors are tight and there is no crimped wiring anywhere.
  • Watch the instrument panel lights and any security system malfunction messages.
  • If appropriate, perform a system diagnostic check.
  • During normal operation, verify that no new error conditions or warnings appear.

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

  • Battery not disconnected – always disconnect power before working.
  • Exchanging a part according to an incomplete designation – compare all available codes and designs.
  • Damage to the connector or wiring – handle the connectors gently and without using force.
  • Incorrect seating of the part – check the position and fit before final fixing.
  • Assembly of damaged piece – always check the condition of the used part thoroughly before installation.

  Reasons why the part is damaged

  • Activation of the airbag in the event of an accident or impact.
  • Damage due to unprofessional disassembly or assembly.
  • Damaged or loose electrical connectors.
  • Moisture, dirt or long-term improper storage of the part.
  • Mechanical damage to interior parts around the airbag module.
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