Description
Set of locks for Citroën C4 Picasso vehicles. Driver door, ignition barrel plus 1 x key.
This complete lock set is designed for Citroën/Peugeot C4 Picasso vehicles and includes the driver’s door lock, ignition barrel and one matching key. Ideal for mechanics and DIY enthusiasts who search by part number (4162KF, 4162KC, 4162XT), the set restores mechanical security and reliable locking function after wear or damage. The kit provides direct-fit replacement for common lock failures and helps return central locking and ignition operation to factory-like condition.
Key Features
- Direct-fit lock set for Citroën C4 Picasso (driver door + ignition barrel) with 1 key included.
- Supplied under Stellantis/Citroën/Peugeot part number references 4162KF, 4162KC, 4162XT — frequently used as search keywords.
- Mechanical replacement intended to renew worn tumblers, broken cylinders or physically damaged door lock assemblies.
- Suitable for professional workshops and competent DIYers; designed to integrate with existing cylinder/mechanism layout.
Usage And Function
The set replaces the mechanical components that secure the driver door and operate the ignition barrel. Door lock assemblies secure the vehicle and interface with the central locking actuator, while the ignition barrel houses the key and switch mechanism to start the engine. In vehicles equipped with an immobilizer transponder in the key, the key may also contain a transponder chip that must be recognized by the immobilizer system for engine start.
Installation Overview
Replacement is straightforward for a trained mechanic. Typical steps:
- Disconnect the negative battery terminal before starting work to avoid electrical shorts and protect electronic modules.
- Remove the interior door trim panel to access the door lock assembly and linkage.
- Disconnect any electrical connectors (central locking actuator) and unbolt the lock mechanism from the door shell.
- Remove the ignition barrel trim and steering column shrouds to access the ignition cylinder; remove retaining clips or bolts and extract the old barrel.
- Install the new door lock and ignition barrel, reconnect linkages and electrical connectors, then test mechanical operation of locks and key turn function before reassembling trim.
- If the key contains an immobilizer transponder, ensure the key is correctly programmed or cloned so the vehicle recognizes it.
Estimated time: typically 1–2 hours for an experienced technician, depending on vehicle trim and workshop equipment.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: Citroën C4 Picasso
- Product Codes: 4162KF, 4162KC, 4162XT
- Other Numbers: 4162KF | 4162KC | 4162XT
Installation Recommendations
- Always disconnect the battery before working on the ignition or door electronics to avoid damage to electronic modules.
- Use correct trim removal tools to prevent damage to interior panels and clips.
- Inspect and lubricate linkages and latch mechanisms with appropriate grease during installation to prolong service life.
- When a key transponder is present, have key programming or cloning performed by a qualified locksmith or dealership using the appropriate diagnostic equipment.
- Verify smooth mechanical operation and central locking cycle before reinstalling trim panels.
Most Common Reasons For Failure
- Wear Of Internal Tumblers And Springs: Frequent use causes mechanical wear leading to key jamming or cylinder rotation problems.
- Corrosion And Moisture Ingress: Water entry into door cavities can corrode lock parts and cause sticking or failure.
- Key Damage: Worn or broken keys can damage the barrel or fail to operate the lock correctly.
- Physical Damage: Forced entry attempts, impact or door misalignment can break lock bodies or linkages.
- Central Locking Actuator Issues: Faulty actuators or linkages can make the door lock appear to fail even when the cylinder is functional.
Search by part numbers 4162KF, 4162KC or 4162XT to find the correct replacement quickly. This set is a practical choice for garages and competent DIYers looking to restore secure locking and reliable ignition operation on Citroën C4 Picasso models.
