Description
Lock set for Citroën C8 – can be used on Peugeot 807. Driver door, passenger door, fuel flap and ignition barrel. The immobiliser is connected to the ignition barrel wiring – wires need to be connected. Includes 2 keys.
Product Overview
Complete lock set designed for Citroën C8 and compatible with Peugeot 807. This kit includes locks for the driver door, front passenger door, fuel flap and the ignition barrel, plus two keys. It is suitable for professional workshops and experienced DIY mechanics who need to restore vehicle security after worn or damaged locks, water ingress or vandalism. Many customers search by product codes 4162Y4 and 4162Y2, so these numbers are listed in technical details for quick identification.
Technical Information
- Manufacturer: Stellantis (Citroën/Peugeot)
- Model: Citroën C8, Peugeot 807
- Product Codes: 4162Y4, 4162Y2
- Other Numbers: NFP
Compatibility and Fitment
This lock set fits Citroën C8 and is compatible with Peugeot 807 models produced in the same platform generation (commonly 2002–2014). Always verify the physical shape and mounting points against the vehicle before installation. The set is intended as a direct replacement for vehicles using the same lock assemblies.
Function and Common Symptoms
Locks and the ignition barrel provide mechanical security and the interface for door opening, fuel flap access and vehicle starting. Common failure symptoms include: door not locking or unlocking, intermittent central locking operation, jammed or stiff key in the ignition, fuel flap not releasing and visible wear or corrosion on lock mechanisms. Electrical symptoms may appear if actuators or wiring are damaged.
How To Replace
Typical replacement steps (for experienced technicians):
- Remove interior door trim and protective panels to access the lock actuator and latch assembly.
- Disconnect electrical connectors and detach linkage rods carefully to avoid bending or breaking plastic clips.
- Unscrew and remove the old lock assembly, then install the new lock in reverse order, making sure all mechanical linkages move freely.
- For the ignition barrel, remove steering column covers to access the barrel. Fit the new barrel and reconnect any immobiliser wiring as required.
- Reconnect connectors and test mechanical operation of locks and the ignition before fully reassembling trims.
Installation Recommendations
- Always disconnect the vehicle battery before starting disassembly to avoid short circuits and protect vehicle electronics.
- Use correct trim tools to avoid damaging clips and panels. Keep fasteners and small parts organized for reassembly.
- Check and replace any brittle plastic clips or corroded fasteners while access is available.
- When connecting immobiliser-related wiring, ensure correct insulation and secure soldering or crimping to prevent intermittent faults from vibration or moisture.
- After installation, verify all door functions, central locking cycles and ignition operation on the bench and in the vehicle.
Why This Part Most Often Fails
Door locks and ignition barrels commonly fail due to a combination of mechanical wear, contamination and moisture ingress. Water and road salt accelerate corrosion of metal parts and degrade lubrication, while repeated use wears tumblers and actuator gears. Plastic components and clips become brittle with age and can break during normal operation. Electrical issues usually stem from corroded connectors or actuator motor failure. In some cases, misaligned linkages or previous improper repairs accelerate wear.
Notes
Includes two keys. The immobiliser connection on the ignition barrel requires joining the wiring as indicated; depending on key/transponder status further synchronization or programming may be necessary. This product is frequently searched and referenced by product codes 4162Y4 and 4162Y2—use these when looking up fitment details.
