Description
Lock set – driver’s door, fuel filler cap and ignition lock cylinder plus 2x key. Key may not have remote control buttons.
This complete lock set is designed for Citroën models and provides a cost-effective solution for replacing worn or damaged locking components. The kit includes the driver-side door lock, fuel filler cap lock and ignition lock cylinder together with two keys (keys may be standard and may not include remote buttons). Ideal for professional workshops and experienced DIY mechanics, this set is often sought by part number 4162AG / 4162AH and improves vehicle security and convenience after installation.
Benefits: easy replacement of multiple locks at once, single-keyed set for convenience, OEM-compatible fit for specified Citroën models, and reduced downtime compared with sourcing individual components.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: Citroën C2; Citroën C3; Citroën C3 Pluriel
- Product Codes: 4162AG, 4162AH
- Other Numbers: Commonly referenced under the same codes 4162AG / 4162AH
Function And Common Faults
The set performs three functions: securing the driver door, locking the fuel filler flap and enabling vehicle start/immobiliser operation via the ignition lock cylinder. Typical causes of failure include mechanical wear of tumblers and keys, corrosion from moisture ingress, broken plastic components inside the lock assembly and worn key profiles. Electrical faults related to remote fobs are separate—note that supplied keys may not include remote control buttons.
Replacement And Installation
Basic replacement overview for experienced mechanics or competent DIYers:
- Prepare: Gather trim removal tools, Torx/screwdriver set and penetrating lubricant. Disconnect the negative battery terminal before working on the ignition cylinder to avoid short circuits.
- Door Lock: Remove the door card to access the lock mechanism, disconnect linkage rods and electrical connectors (if present), remove retaining bolts, swap the lock cylinder and reassemble, checking latch operation and link adjustments.
- Fuel Filler Lock: Access the filler lock either through the inner wing/boot lining or by opening the filler flap; remove fasteners, install new lock and test release mechanism.
- Ignition Lock Cylinder: Remove steering column covers, ensure steering wheel lock is disengaged, remove retaining screw(s) and withdraw the old cylinder with the key in the release position, install the new cylinder and reassemble. Verify ignition positions and immobiliser response before reconnecting the battery.
Installation Recommendations
- Use light graphite or dedicated lock lubricant on new cylinders and keys; avoid oily lubricants that attract dirt.
- Check and clean linkages and actuators when replacing locks to prevent premature wear.
- Test all functions (door locking, fuel flap release, ignition turn/start) before final reassembly.
- If unsure about ignition cylinder removal or immobiliser behaviours, seek professional workshop assistance to avoid immobiliser faults.
Why The Part Most Commonly Fails
Locks and cylinders are exposed to mechanical stress and environmental factors. Repeated use causes tumbler wear and key profile degradation. Moisture and salt (road conditions) accelerate corrosion, seizing moving parts. Forced entry attempts or vandalism can also damage lock housings and linkages. In ignition cylinders, broken keys or internal plastic/component wear are frequent failure modes.
When searching for this item, use product codes 4162AG or 4162AH to increase the chance of finding the exact match for Citroën C2/C3 applications.
