Description
Overview
This comprehensive lock set for Peugeot 406 delivers the core mechanical components needed to restore vehicle security and ignition control. The kit contains driver and passenger door locks, the tailgate lock, the ignition barrel and two matching keys. Commonly referenced by part numbers 4162R5, 4162R7 and 5826E8, this assembly is ideal for professional workshops and competent DIY enthusiasts looking to replace worn or damaged locking components.
What Is Included
– Driver Door Lock
– Passenger Door Lock
– Tailgate Lock
– Ignition Barrel (steering lock cylinder)
– 2x Keys
Technical Information
- Manufacturer: Peugeot / Citroên (PSA Group)
- Model: Peugeot 406
- Product Codes: 4162R5, 4162R7, 5826E8
- Additional Numbers: Not Specified
Compatibility & Fitment
Designed for use on Peugeot 406 models and compatible PSA Group vehicles where the listed part numbers apply. Fitment can vary by year and body type; verify against the vehicle VIN or existing part numbers before ordering. These parts are typically used across several production variants within the 406 range.
Replacement & Installation Notes
Replacement normally requires removal of internal door panels to access the lock mechanism, disconnecting linkages and electrical connectors (if fitted), unbolting the lock assembly and installing the new unit with correct alignment. The ignition barrel swap usually involves steering column trim removal and careful disengagement of the old cylinder before inserting the new one and ensuring the immobiliser/key recognition (if applicable) is matched. Tighten fasteners to manufacturer torque specs and confirm smooth operation of locks and key before reassembly.
Common Failure Modes & Maintenance Tips
Locks and ignition barrels wear over time due to mechanical abrasion, corrosion, dirt ingress, or broken internal components. Symptoms include stiff or sticking keys, failure to turn in the cylinder, door locks not latching, or the tailgate failing to lock. Regular lubrication with appropriate lock-safe spray, keeping keys free of debris, and addressing early signs of wear can extend service life. When replacing, inspect linkages, actuators and electrical connectors to prevent repeat issues.
Why Choose This Lock Set
For mechanics and skilled DIYers, this lock set supplies all principal locking components in one package, simplifying repairs and reducing diagnostic time. Inclusion of two matching keys and the ignition barrel ensures synchronized operation across doors and ignition, restoring both convenience and vehicle security. Frequently searched by the provided part numbers, it is practical to reference these codes when confirming compatibility.
