Description
Left front pyrotechnic seat belt for CITROËN C1 and PEUGEOT 107. Up to year of manufacture 2013. Driver’s seat. 5 doors.
High-quality left front pyrotechnic seat belt (driver side) designed for Citroën C1 and Peugeot 107 (models produced up to 2013). This safety component integrates a pyrotechnic pretensioner to reduce occupant movement during a collision and works together with the vehicle’s SRS to improve crash protection. Ideal for professional workshops and experienced DIY mechanics looking for a direct-fit replacement by product code.
Technical Information
- Manufacturer: Stellantis / Citroën / Peugeot
- Model: Citroën C1, Peugeot 107 (Up to 2013)
- Product Codes: 7P2170-P, 8974LL, 8974LN
- Additional Numbers: 16084059XZ, B0009077XZ
Function
The pyrotechnic pretensioner tightens the seat belt webbing in the milliseconds after a crash is detected, removing slack and positioning the occupant optimally before the main restraint (airbag) deploys. It is a single‑action safety device: once deployed in an accident it must be replaced.
Compatibility And Fitment
Fits left front (driver) position on Citroën C1 and Peugeot 107 first‑generation vehicles produced up to 2013, for 5‑door body versions. Always verify the product code on the original part before installation; this listing corresponds to the codes shown in the technical information.
Replacement And Installation
General replacement steps (for experienced mechanics):
- Disconnect the vehicle battery and wait at least 10 minutes to reduce the risk of unintended SRS activation.
- Remove the interior trim panels to access the belt retractor and pretensioner mounting points.
- Unbolt and disconnect the pretensioner electrical connector and remove the old unit.
- Install the new unit in the original position, connect the electrical connector and secure all fasteners per factory guidelines.
- Use an SRS‑capable diagnostic tool to clear fault codes and verify correct operation of the restraint system after installation.
Installation Recommendations: Always follow the vehicle manufacturer’s workshop manual. Replace any damaged mounting hardware and use the correct torque values specified by the manufacturer. If you are not equipped with SRS diagnostic tools or unsure about the procedure, have the replacement performed by a qualified technician.
Why This Part Fails Most Often
- Deployment During A Collision: The most common and definitive reason for replacement is activation of the pyrotechnic pretensioner in an accident.
- Electrical Or Connector Damage: Corroded or damaged wiring and connectors can generate SRS faults that require unit replacement.
- Mechanical Wear Or Contamination: Debris, water ingress or severe wear in the retractor mechanism can impair belt function and necessitate replacement.
- Age And Environmental Effects: Long service life in harsh conditions can contribute to deterioration of components and connectors.
Safety And Disposal
Do not attempt to disassemble or modify a pyrotechnic pretensioner. Improper handling may cause injury. Dispose of deployed or damaged pretensioners according to local regulations for pyrotechnic or hazardous automotive components.
Notes For Professionals
This part is intended for professionals and competent DIYers familiar with SRS systems. Replacing a pyrotechnic pretensioner requires adherence to safety procedures and proper diagnostic verification to ensure the vehicle’s restraint system is fully operational after repair.







