Description
Lock Set For CITROËN C4 II B7
Driver Door Lock Plus Ignition Barrel
2 x Key
Premium lock set designed for Citroën C4 II (B7) vehicles, including the driver door lock, ignition barrel (steering column lock cylinder) and two matching keys. Ideal for professional workshops and DIY mechanics looking to replace a worn or damaged door locking mechanism and restore reliable locking, unlocking and ignition operation. This set is commonly searched by product codes 4162WH and 4162WK — include these codes when searching to find the exact fit.
The driver’s door lock secures the door latch and integrates with the vehicle’s central locking actuator and mechanical linkages. The ignition barrel provides the mechanical interface for the vehicle key to operate ignition, steering lock and, depending on vehicle specification, the immobilizer transponder reader. Replacing both components together often prevents recurring key or locking issues and ensures consistent key geometry between door and ignition.
Technical Information
- Manufacturer: Citroën / Stellantis
- Model: Citroën C4 II (B7)
- Product Codes: 4162WH, 4162WK
- Other Numbers: No additional reference numbers provided
What Is Included
- Driver Door Lock Assembly
- Ignition Barrel (Steering Column Lock Cylinder)
- Two Keys (cut to match included barrel)
Recommended Installation
Suitable for experienced mechanics and confident DIYers. Follow these general steps and always observe manufacturer safety procedures:
- Disconnect the vehicle battery before any work to avoid short circuits and to protect electronic components.
- Remove the interior door trim to access the door lock mechanism — retain fasteners and clips for reassembly.
- Disconnect electrical connectors and linkage rods from the lock assembly. Unscrew and remove the old lock from the door.
- For the ignition barrel, remove steering column covers, unlock retaining clips or screws and extract the old barrel according to the vehicle’s service instructions.
- Install the new lock and ignition barrel, reconnect linkages and electrical connectors, then reassemble trims. Verify smooth mechanical operation before reconnecting the battery.
- Check central locking, remote unlock (if applicable) and that the key turns freely in ignition and operates all relevant functions (accessory, run, start).
Common Failure Causes
- Wear And Tear — Frequent use leads to mechanical wear of tumblers, cam surfaces and actuator linkages, causing sticking or failure to latch.
- Key Damage — Worn or bent keys can fail to operate the barrel properly and accelerate internal wear.
- Corrosion And Dirt — Moisture or debris inside the door or steering column can bind moving parts and cause intermittent operation.
- Impact Damage — Door damage from accidents or forced entry attempts can deform lock components and alignment.
- Electrical Faults — While the mechanical lock can fail independently, poor electrical connections to central locking actuators can mimic lock failures.
Replacement of the lock set is a cost-effective way to restore reliable access and ignition function. Using the exact product codes 4162WH and 4162WK when ordering increases the chance of receiving the correct item for Citroën C4 II (B7) models.
