This lock set is a direct-fit solution for Citroën C5 first generation owners and professional technicians. It includes the driver’s door lock, the fuel filler flap lock and the ignition barrel together with one key. Designed to restore mechanical security and reliable access, the kit is ideal for garages and DIY mechanics who need an integrated replacement when tumblers, actuators or the ignition switch fail. The listing is frequently searched by manufacturer part numbers 4162Z0 and 4162CE, so use these codes when locating the correct unit.

Key Benefits

• Complete Set: Replaces driver’s door lock, fuel filler flap lock and ignition barrel in one package.
• Includes Key: Supplied with one matching key ready for cutting and vehicle programming if required.
• OE Cross-Reference: Supplied under Stellantis / Citroën catalog references to simplify identification (see Technical Information).
• Saves Time: One kit replaces multiple worn components, reducing dismantling and reassembly time.

Technical Information

• Manufacturer: Stellantis (Citroën / Peugeot)
• Model: Citroën C5 (First Generation, 2001–2007)
• Product Codes: 4162Z0, 4162CE, NFP
• Other Numbers: Tags/References: 4162CE | 4162Z0

Function And Common Faults

The Door Lock Provides Mechanical Latching And, Where Fitted, Electrically Operated Locking Via Actuator. The Fuel Filler Flap Lock Secures The Fuel Cap Area Against Unauthorized Access. The Ignition Barrel Houses The Key Cylinder And Mechanical Tumblers That Allow Key Turn To Start The Vehicle And Engage The Steering Lock Mechanism.

Common Failures Include:

• Worn Tumblers In The Ignition Barrel Causing Key To Stick Or Fail To Turn.
• Corrosion Or Dirt Buildup Preventing Smooth Lock Operation, Especially In Areas Exposed To Road Salt Or Moisture.
• Broken Or Weak Door Lock Actuator (If Electrically Assisted) Resulting In Intermittent Locking Or Failure To Lock/Unlock.
• Physical Damage Or Vandalism To The Fuel Filler Flap Lock.

Replacement Guide

Recommended For Experienced DIYers And Professional Mechanics. Typical Lifespan Depends On Use And Environment, But Locks Commonly Last 10+ Years; Failures Are Usually Due To Wear, Corrosion Or Mechanical Damage.

Driver’s Door Lock Replacement (Summary):

• Remove Interior Door Trim And Protective Covers Using Trim Tools To Avoid Damage.
• Disconnect Any Electrical Connectors For Central Locking Actuator Where Present.
• Unbolt Lock Mechanism From Door Shell, Release Linkages And Note Their Positions For Reassembly.
• Fit New Lock, Reconnect Linkages And Electrical Connectors, Test Operation Before Reassembling Trim.

Ignition Barrel Replacement (Summary):

• Remove Steering Column Covers To Access The Ignition Barrel.
• Insert Key To Release Retaining Clip Or Screw; Remove Barrel Assembly Carefully.
• Install New Barrel, Ensure Correct Mechanical Engagement With Steering Lock, And Verify Key Turns Smoothly.
• Note: The Supplied Key May Require Cutting And Immobiliser Programming To Start The Engine; If A Transponder Key Is Required, Ensure Proper Key Preparation And Programming.

Fuel Filler Flap Lock Replacement (Summary):

• Access Lock From Inside Wheel Arch Or Boot Area Depending On Model Year.
• Remove Fasteners, Disconnect Linkage Or Electrical Connector, Replace Lock And Test Flap Operation.

Installation Recommendations

• Work Methodically: Keep Fasteners And Clips Organized To Ensure Correct Reassembly.
• Use Appropriate Tools: Torx And Hex Drivers, Trim Pry Tools, Small Pliers And A Safe Work Light.
• Lubricate Moving Parts With Suitable Lock Grease Or Graphite To Improve Longevity After Installation.
• Verify Mechanical And Electrical Operation Before Refitting Interior Panels.
• When Replacing The Ignition Barrel With A Key That Contains A Transponder, Ensure The Key Is Cut Correctly And Programmed To The Vehicle Immobiliser If Required.

Why This Part Fails Most Often

Primary Causes Are Mechanical Wear Of Tumblers, Corrosion From Moisture And Road Salt, Contamination With Dirt Or Debris, And Occasional Damage From Forced Entry Attempts. Electrical Actuators Fail Due To Motor Wear Or Water Ingress. Regular Lubrication And Prompt Replacement Of Worn Keys Can Reduce Failure Risk.

Notes For Buyers

Search By Part Numbers 4162Z0 Or 4162CE For Fast Identification. The Kit Is Intended For Citroën C5 First Generation Models (2001–2007). Ensure You Have The Correct Key Cut And Programmed Where Immobiliser Transponder Functionality Is Required.

Complete lock set for Citroën C5 (2001–2007) including driver door lock, fuel filler flap lock and ignition lock barrel, supplied with two identical keys. Designed for mechanics and DIY enthusiasts who need a reliable replacement that matches original PSA part references 4162Z0 and 4162CE.

Features & Benefits

• Direct replacement for driver door, fuel filler flap and ignition cylinder.
• Two identical keys included for immediate use after cutting or programming.
• Quality components compatible with PSA (Citroën/Peugeot) locking systems.
• Reduces downtime: one kit replaces multiple locking points at once.

When and Why It Fails

Lock cylinders and door locks wear over time due to key wear, internal tumbler deterioration, corrosion, moisture ingress or mechanical damage. Typical symptoms include difficulty turning the key, intermittent central locking operation, keys stuck or broken in the cylinder, and inability to open the fuel flap.

Replacement and Installation

Installation generally requires removal of the interior door panel to access the door lock mechanism; ignition lock replacement may require removal of steering column trim. Basic hand tools are sufficient for an experienced mechanic. Keys are supplied uncut and may require cutting and immobiliser pairing/programming depending on vehicle specification. If you are unsure about immobiliser pairing or steering column work, professional fitting is recommended to avoid damage to trim or safety systems.

Technical Information

• Manufacturer: PSA (Citroën/Peugeot)
• Model: Citroën C5 (2001–2007), First And Early Second Generation
• Product Codes: 4162Z0, 4162CE
• Other Numbers: NFP

This kit is commonly searched by its part numbers 4162Z0 and 4162CE. It is suitable for mechanics and competent DIYers who need a consolidated replacement for multiple locking points on Citroën C5 models from 2001 to 2007.

High-quality Ignition Switch Housing with One Key for Citroën C5 models built between 2001 and 2007. This replacement ignition barrel assembly (product code 4162CE) is suitable for mechanics and DIY enthusiasts looking to restore reliable starting, steering lock function, and key security.

Commonly searched by code 4162CE, this unit combines the mechanical lock cylinder and the ignition switch housing to simplify installation and reduce troubleshooting time.

Features And Benefits

• Direct fit for Citroën C5 (2001-2007) using 4162CE code
• Includes one key to replace lost or worn keys
• Restores ignition actuation and steering column locking function
• Reduces downtime for workshops with straightforward replacement

When And Why It Fails

Ignition housings wear out mechanically over time: tumblers break, keys wear, or the internal switch develops electrical faults. Corrosion and debris inside the column can also prevent key insertion/removal or starting. Symptoms include a stuck key, intermittent starting, or loss of steering lock engagement.

Replacement Guide

Basic replacement steps: disconnect the negative battery terminal; remove steering column trim panels; note or photograph connector positions; unplug electrical connectors; remove mounting screws or clips securing the ignition housing; swap the unit and reassemble in reverse order. After replacement, verify key operation and, if required by the vehicle immobiliser, perform key programming with an appropriate diagnostic tool.

Compatibility And Fitment

Designed for Citroën C5 I and early C5 II models from 2001 to 2007. Always verify fitment against the product code 4162CE and your vehicle VIN before purchase.

Technical Information

• Manufacturer: PSA (Citroën/Peugeot)
• Model: Citroën C5 (2001-2007)
• Product Codes: 4162CE
• Other Numbers: No additional numbers provided; confirm OEM cross-references if needed

Suitable for professional workshops and competent DIYers. If in doubt about immobiliser or key pairing, consult a qualified technician.