Description
Lock set – ignition barrel, driver’s door and fuel flap – 2x keys
Product Overview
Complete lock set designed for Citroën C4 vehicles, including the ignition barrel, driver’s door lock and fuel filler flap lock, supplied with two keys. Supplied under Stellantis / Citroën references 4162EP and 4162EA, this set is ideal for workshop repairs or DIY replacements where locks or keys are worn, damaged or lost. Commonly searched by product codes 4162EP and 4162EA, this kit restores mechanical security and door/fuel flap function in one job.
Key Benefits
- Direct-fit replacement for models using codes 4162EP / 4162EA, maintaining original mounting points and cable/rod interfaces.
- Two keys included — immediate usability without sourcing additional blanks.
- Cost-effective solution that avoids replacing separate components one-by-one.
- Suitable for professional garages and experienced DIY mechanics; ideal when keys are worn, broken or missing.
Technical Information
- Manufacturer: Stellantis (Citroën/Peugeot)
- Model: Citroën C4
- Product Codes: 4162EP, 4162EA
- Other Numbers: 4162EP / 4162EA (common reference numbers used in parts lists)
Installation Recommendations
Replacement of door locks and fuel flap lock is a straightforward mechanical job for a trained technician or competent DIYer. Typical steps:
- Remove interior trim panels to access door lock mechanism and retaining screws/bolts.
- For the ignition barrel, release the steering column trim and remove the retaining clip or screw securing the barrel. Follow vehicle manufacturer procedure to avoid damaging locking tabs.
- Fit the new locks aligning linkages and rods; ensure clips and fasteners are seated correctly and lubricate moving points with suitable lock grease.
- Ensure keys operate smoothly in the new barrel and that the door and fuel flap lock/unlock correctly from inside and outside.
Recommended tools: trim tools, Torx/socket set, screwdrivers, pliers and light lock lubricant. Estimated replacement time: 30–90 minutes depending on access and experience.
Note: If the ignition barrel incorporates a transponder key, key programming or pairing may be required for immobiliser recognition. In such cases use diagnostic equipment or professional key programming services.
Most Common Causes Of Failure
- Wear of tumblers and keyway from long-term use, causing the key to stick or fail to turn.
- Corrosion or water ingress, especially in door and fuel flap locks, leading to seized mechanisms.
- Broken keys left in the cylinder or excessive force damaging internal components.
- Vandalism or attempted theft that physically damages the lock or ignition barrel.
- Mechanical fatigue of rods, clips or actuators that prevents proper actuation of the lock.
Advice For Professionals And DIYers
- Search by product code (4162EP / 4162EA) to quickly find matching parts and references — these codes are commonly used in parts catalogs.
- When replacing multiple locks at once, verify smooth operation before reassembling trims to avoid repeat removal.
- Use corrosion-inhibiting lubricant in exterior locks and avoid strong solvents that can damage plastics and gaskets.
- If unsure about immobiliser or transponder key issues after fitting, consult diagnostic equipment or a specialist to avoid immobilisation problems.
