Product Overview

This left driver airbag unit (Steering Wheel Airbag) is intended for Citroën C1 vehicles produced in model years 2012–2013. Supplied with reference numbers commonly used in parts catalogues, the module is suitable for professional workshops and experienced DIY mechanics replacing a deployed or defective driver airbag assembly. The module contains the inflator/squib and the cover assembly matched to the left (driver) position in the steering wheel.

Features And Function

• Primary safety component of the Supplemental Restraint System (SRS) that deploys in a qualifying frontal impact to protect the driver.
• Includes inflator (gas generator) and squib electrical connector that is wired through the steering column clock spring (spiral cable).
• Designed to work together with seat belts, crash sensors and the vehicle SRS control unit to meet the intended occupant protection function.

Replacement Procedure (How It Is Exchanged)

Replacing a driver airbag requires careful adherence to safety procedures and correct handling of pyrotechnic components. Typical replacement steps:

1. Park vehicle on level ground, put transmission in park (or neutral) and apply parking brake.
2. Disconnect the negative battery terminal and wait at least 10 minutes to allow the SRS system capacitors to discharge.
3. Remove steering wheel trim/horn pad retaining clips or screws following manufacturer trim removal procedure.
4. Carefully release the airbag module retaining bolts and disconnect the airbag electrical connector(s) from the squib. Label connectors if needed.
5. If steering wheel removal is required, mark steering wheel and shaft alignment, loosen the central nut, remove wheel, ensure clock spring remains centered.
6. Fit replacement airbag, reconnect squib connector(s), torque retaining fasteners to manufacturer specification and reassemble trim.
7. Reconnect battery, test SRS system with an appropriate diagnostic tool and confirm no fault codes or SRS warning light. Clear faults only after repairs are complete.

Installation Recommendations

• Always disconnect the battery and follow the vehicle manufacturer procedure to avoid accidental deployment and component damage.
• Ensure the clock spring (spiral cable) is correctly centered before reinstallation. Incorrect clock spring position can cause airbag faults or loss of steering wheel electronic functions.
• Use correct torque values for steering wheel and airbag fasteners as specified in the workshop manual.
• Inspect connectors and wiring for corrosion or damage; replace damaged connectors or wiring harness sections before reassembly.
• After installation, verify SRS system status with an airbag-capable diagnostic tool and confirm the SRS warning lamp extinguishes after engine start and self-test.
• Handle the module with the trim cover facing away from the body and store/transport following safety rules for pyrotechnic devices.

Common Failure Causes

• Deployment During A Collision — The most frequent reason for replacement is airbag deployment after an accident.
• Clock Spring (Spiral Cable) Wear Or Damage — Loss of electrical continuity through the steering column can trigger SRS faults and prevent deployment.
• Connector Corrosion Or Wiring Damage — Moisture ingress or mechanical damage at connectors can cause open/short circuits in the squib circuit.
• Previous Incorrect Repair Or Tampering — Improper handling after deployment or poor-quality repairs can leave the system inoperative.
• Electrical Faults In SRS Network — Faulty sensor inputs or control unit errors may indicate airbag-related faults though the underlying cause can be elsewhere in the SRS system.

Technical Information

• Manufacturer: Stellantis / Citroën
• Model: Citroën C1 (Model Years 2012–2013)
• Product Codes: 16083643ZD
• Other Numbers: 4112HV

Notes For Professionals And DIYers

This airbag is a safety-critical component. While an experienced technician or competent DIY mechanic can perform the replacement, it must be carried out carefully with correct tools and diagnostics. After replacement, confirm system integrity by reading and clearing SRS fault codes and performing the vehicle self-test. Always follow local regulations for disposal of deployed modules and handling of pyrotechnic safety devices.

This genuine steering wheel airbag is designed for the Citroën C1 (models up to 2012) and is referenced under codes 4112HV and 16083643ZD. Ideal for professional workshops and experienced DIY technicians, the module restores occupant protection and horn/airbag functionality after deployment or fault. Use the listed product codes when searching or ordering to ensure fast identification. Compatible with original Stellantis Citroën parts specification; emblem shows minor cosmetic wear as noted.

Technical Information

• Manufacturer: Stellantis / Citroën
• Model: Citroën C1 (up to 2012)
• Product Codes: 4112HV, 16083643ZD
• Other Numbers: 16083643ZD | 4112HV

Function And Fitment

The steering wheel airbag (driver’s airbag) is a pyrotechnic restraint designed to deploy in the event of a significant frontal impact, reducing driver injury by cushioning and controlling forward movement. It is mounted in the centre of the steering wheel and integrates with the horn and associated electrical connectors. This module is intended specifically for Citroën C1 vehicles produced up to 2012—verify fitment via the product codes when replacing parts.

Replacement Procedure (Overview)

Basic replacement steps for a trained technician:

• Disconnect the vehicle battery and wait at least 10 minutes to allow the system to discharge.
• Remove steering column covers to access airbag retaining fasteners (bolts or clips depending on trim).
• Carefully unclip and remove the airbag module from the steering wheel, taking care with the squib connectors.
• Disconnect electrical connectors, replace the module, and reconnect ensuring secure seating and correct orientation.
• Reassemble steering wheel covers, reconnect the battery, and verify system status with a diagnostic tool—confirm the airbag warning lamp extinguishes and no persistent fault codes remain.

Installation Recommendations

• Always follow manufacturer repair procedures and safety precautions when working on SRS systems.
• Disconnect the battery and wait a minimum of 10 minutes before starting work to reduce the risk of accidental deployment.
• Handle the airbag module with care; store face up on a secure surface away from heat sources and static.
• Use appropriate tools for steering wheel fasteners and avoid pulling on wiring—inspect connectors for damage or corrosion and replace if necessary.
• After installation, perform a full SRS system check with a compatible diagnostic tool to clear faults and confirm readiness.

Why This Part Most Commonly Fails

Driver airbags are most often replaced after deployment in a collision. Other common causes for replacement or fault indication include damage to the clock spring/spiral cable (resulting in open circuits to the squib), connector corrosion, water ingress into the steering column area, electrical shorts from improper previous repairs, and internal component degradation over time. Symptoms that indicate a problem include a persistent airbag warning lamp, loss of horn or steering wheel controls, or visible physical damage to the airbag cover.

Suitable for mechanics and competent DIYers familiar with SRS safety procedures. If in doubt, have the replacement performed by a qualified technician with proper diagnostic equipment.