Description
Lock Set – Ignition Switch, Driver Door And Fuel Flap – 1x Key
Complete lock set for Citroën C4 including ignition switch (ignition cylinder), driver door lock mechanism and fuel flap lock, supplied with one key. This kit is aimed at professional workshops and competent DIY mechanics who need a direct replacement for worn, damaged or non-functioning locks. The set helps restore mechanical security and reliable operation of central locking and fuel flap access. Commonly searched under product codes 4162EP and 4162EA.
Technical Information
- Manufacturer: Stellantis (Citroën/Peugeot)
- Model: Citroën C4
- Product Codes: 4162EP, 4162EA
- Other Numbers: No Additional Numbers Available
Compatibility
Designed For Citroën C4 Vehicles That Use The Corresponding Lock Assemblies With Part Numbers 4162EP / 4162EA. Verify That The Vehicle Uses The Same Lock Layout (Ignition Cylinder, Driver Door Lock And Fuel Flap Lock) Before Installation.
Function And Common Faults
The Kit Replaces Three Mechanical Lock Components: The Ignition Cylinder Controls Key Turn And Engine Start; The Driver Door Lock Secures The Door And Interfaces With The Central Locking Mechanism; The Fuel Flap Lock Secures The Fuel Filler Cap. Typical Failures Are Caused By Mechanical Wear Of Tumblers, Corrosion From Moisture, Dirt Ingress, Broken Lock Rods Or Clips, And Worn Key Blanks. Symptoms Include Difficulty Turning The Key, Intermittent Central Locking Operation, Door Not Latching Properly Or Fuel Flap Not Locking/Unlocking.
Replacement Guide
- Tools Usually Required: Torx And Phillips Screwdrivers, Trim Removal Tools, Socket Set, Pliers, Key Cutting Equipment If Key Blank Is Supplied Uncut.
- Ignition Cylinder: Remove Steering Column Covers, Insert Key And Turn To Retaining Position, Release Retaining Pin Or Clip And Withdraw Old Cylinder. Fit New Cylinder Ensuring Correct Orientation And Smooth Operation.
- Driver Door Lock: Remove Interior Door Trim, Disconnect Electrical Connectors And Linkage Rods, Unscrew Lock Mechanism Fasteners, Replace With New Unit And Reconnect Linkages And Connectors. Check Door Latch Engagement And Central Locking Function.
- Fuel Flap Lock: Access Through Wheel Arch Liner Or Interior Trim, Unbolt Or Unclip Old Lock, Replace And Test Opening/Closing From Central Locking And Key Operation.
- Key: If The Supplied Key Is A Mechanical Blank, Have It Cut To Match The New Cylinders. If The Key Includes An Immobilizer Transponder, Programming May Be Required To Start The Engine—use appropriate diagnostic equipment.
Installation Recommendation
Replace Locks In A Clean, Dry Workspace. Lubricate Moving Parts With Suitable Lock Grease (Avoid Heavy Oils That Attract Dirt). If Replacing Multiple Lock Cylinders, Consider Matching Or Rekeying All Cylinders To The Same Key Number For Convenience. After Installation, Verify That All Mechanisms Operate Smoothly And That Central Locking And Safety Features Work Correctly.
Reason Why The Part Most Often Fails
Failures Most Frequently Result From Mechanical Wear Of Internal Tumblers And Pins, Corrosion From Moisture Ingress, Accumulation Of Dirt Or Road Salts, And Damage To Linkage Rods Or Fasteners During Use Or Previous Repairs. Repeated Forced Operation With A Worn Key Or Frozen Mechanism Accelerates Failure.
Notes For Professionals
This Product Is Intended For Professional Fitters And Skilled DIYers. Ensure Proper Key Cutting And, If Applicable, Immobilizer Programming Are Performed. After Fitment, Test All Locking Points And The Ignition Function Thoroughly Before Returning The Vehicle To Use.
