Description
Set of locks for CITROËN C8. Can be used on first-series C8. Driver door lock, passenger door lock, fuel filler flap lock and ignition barrel. Plus 1x key.
Product Overview
Complete lock set designed for Citroën C8 containing driver and passenger door locks, fuel flap lock and an ignition barrel supplied with one key. Ideal for workshops and DIY mechanics who need a direct replacement of mechanical locking components or a matched set when replacing worn or damaged locks. Relevant search keywords: Citroën C8 door lock set, ignition barrel C8, 4162Y4, 4162Y2, Peugeot 807 locks.
Technical Information
- Manufacturer: Stellantis / Citroën / Peugeot
- Model: Citroën C8 (first series); compatible with Peugeot 807 (first series)
- Product Codes: 4162Y4, 4162Y2
- Additional Numbers: NFP
Function And What Is Included
This kit replaces the mechanical locking points that secure the doors and fuel filler flap and restores the ignition barrel function. The door locks operate the latch and central locking mechanism; the fuel flap lock secures the filler door; the ignition barrel houses the mechanical key interface and may contain the barrel components that engage the steering lock and starter switch when turned.
Typical Faults And Failure Causes
- Mechanical Wear: Tumblers, springs or plastic components inside locks wear over time, causing sticking, difficulty turning the key or failure to lock/unlock.
- Corrosion And Moisture Ingress: Water or salt can corrode internal parts, especially in door locks and fuel flap lock, leading to seized mechanisms.
- Key Wear Or Damage: Worn or bent keys cause poor engagement with the barrel and accelerated wear of tumblers.
- Impact Or Forced Entry: Physical damage from attempted break-ins or slammed doors can break linkages or locking tabs.
- Central Locking Actuator Issues: Symptoms that appear like a lock failure can sometimes be caused by failed actuators or linkages rather than the lock cylinder itself.
Installation Recommendations
Recommended for experienced mechanics and competent DIYers. General replacement steps:
- Always work with the ignition off and the vehicle secured. For ignition barrel work, disconnect the battery before starting to reduce risk of short circuits and avoid accidental airbag deployment.
- Remove interior door trim panels to access door lock mechanisms—take care with clips and wiring for speakers/locks.
- Disconnect electrical connectors and detach linkages carefully; note their routing and attachment points for reassembly.
- For the ignition barrel, remove steering column covers to access the retaining screw or clip; withdraw the old cylinder and fit the new barrel in correct orientation.
- Fit locks in reverse order, lubricate moving parts with a suitable lock lubricant, and check mechanical travel and engagement before reassembling trim.
- If the supplied key contains a transponder, key programming or synchronization with the vehicle immobilizer may be required. Use appropriate diagnostic or key programming equipment if needed.
Why Replace The Whole Set
Replacing the complete set of locks and the ignition barrel at once ensures consistent keying and reduces repeated disassembly of door trims and steering column. One matched key for all locks simplifies daily use and avoids multiple keys for the same vehicle.
Buying Advice
Search by product codes (4162Y4, 4162Y2) when looking for a direct fit. This kit is aimed at Citroën C8 first-series vehicles and is commonly cross-referenced with early Peugeot 807 models that share the same platform and locking components.
Final Notes
Fitment depends on vehicle specification and production variant—verify compatibility by matching part codes and visual comparison with the existing components before installation. After fitting, check all locks and the ignition function for smooth operation and complete locking/unlocking cycles.
