Product Overview

Replacement ignition switch / ignition barrel for Peugeot 307 First Series. Supplied with one key. Commonly referenced under part code 4162AS, this unit restores mechanical ignition operation, steering lock function and the electrical contact for starting the engine. Ideal for professional workshops and experienced DIY mechanics who service Peugeot and Citroën vehicles.

Technical Information

• Manufacturer: Stellantis / Citroën / Peugeot
• Model: Peugeot 307 (First Series)
• Product Codes: 4162AS
• Additional Numbers: No Additional Numbers Listed

Intended Use And Compatibility

Designed for fitment in Peugeot 307 First Series vehicles. Often searched by the product code 4162AS. Check physical match with the original unit (shape, connector and mounting points) before installation. This part replaces the mechanical and electrical ignition module in the steering column and is suitable where the original barrel is worn, damaged or the key is broken.

Function And Common Failure Causes

The ignition switch/ignition barrel performs several key functions: it provides the mechanical interface for the ignition key, engages and releases the steering lock, and completes the electrical circuit to power the ignition and starter. Common causes of failure include:

• Mechanical wear of tumblers and pins from long-term use or damaged/worn keys.
• Broken or bent key ends that prevent proper tumblers engagement.
• Plastic housing damage from forceful handling or attempted theft.
• Corrosion or contamination of electrical contacts causing intermittent electrical faults.
• Failure of the immobilizer detection ring or transponder interface (leading to starting issues).

Replacement Procedure (Overview)

Suitable for professional mechanics and competent DIYers. Typical replacement steps:

• Disconnect the vehicle battery before any work to avoid electrical shorts and to protect safety systems.
• Remove steering column trim panels to access the ignition barrel (careful with clips and fasteners).
• Retract the key to the correct position, remove retaining screws or clip securing the barrel, and slide out the old unit.
• Install the new barrel, secure fasteners, reconnect electrical connector and reassemble the trim.
• Test mechanically (key turns smoothly, steering lock engages/releases) and electrically (vehicle powers on, starter operates).

Installation Recommendations

• Always Disconnect The Battery Before Starting Work And Follow Manufacturer Procedures To Avoid Damage To Electrical Modules.
• Inspect The Supplied Key And Original Transponder: If Reusing The Original Key/Transponder, No Additional Programming Is Usually Required. If The Supplied Key Does Not Contain The Correct Transponder, Key Programming May Be Necessary To Match The Vehicle Immobilizer.
• Handle Plastic Components Carefully To Avoid Cracking Trims And Covers. Keep Work Area Clean To Prevent Debris Entering The Barrel.
• If You Are Not Confident With Immobilizer Or Electrical Tasks, Have The Replacement Performed By A Qualified Technician.

Why This Part Often Fails

Ignition barrels are subject to frequent mechanical use and exposure to dirt, moisture and wear. Over time the internal tumblers and springs wear down, keys can deform or snap, and plastic housings may become brittle. Electrical contact surfaces can corrode, causing intermittent starting or accessory power faults. Attempted theft or forced key removal are also common causes of sudden failure.

This lock set is designed specifically for the Peugeot 307, featuring an ignition lock cylinder, fuel tank cap lock, and driver door lock. It comes complete with 2 keys, providing a convenient solution for vehicle security and replacement needs. Identified by product code 4162AS, this set is a perfect fit for PSA Citroën Peugeot models requiring secure locking components.

Application and Compatibility

Designed for Peugeot 307 models, this lock set ensures secure operation of ignition, fuel tank access, and driver door locking mechanisms. It is ideal for professional automotive technicians and DIY enthusiasts performing repairs or replacements. This set replaces worn or damaged locks that may cause security issues or ignition and door access failures.

Installation and Maintenance

Replacing the ignition, fuel cap, and driver door locks is a straightforward process that typically requires basic tools. The old lock components are removed from their mounting points, and the new locks are fitted securely in their place using the included keys for alignment. Regular inspection of lock function is recommended to prevent wear-related failures, which are commonly caused by frequent use or exposure to environmental elements.

Technical Information

• Manufacturer: PSA Citroën Peugeot
• Model: Peugeot 307
• Product Codes: 4162AS
• Additional Numbers: Not applicable

This essential replacement part ensures proper locking functionality of your vehicle and fuel tank, crucial for preventing unauthorized access to the fuel system. Securing the fuel cap is important not only for vehicle safety but also for protecting the environment from potential fuel leaks.

Technical Information

Manufacturer: PSA Citroën Peugeot
Model: Peugeot 307
Product Codes: 4162AS, 4162X4
Additional Numbers: Information not available

Designed with durable materials and specifications to resist everyday wear, this component can still gradually wear out due to regular use and external factors. It is recommended to visually inspect the part before installation and perform any necessary preventive maintenance to ensure long-lasting operation and customer satisfaction.

This part is an effective choice for Peugeot 307 owners looking for a cost-effective alternative to brand-new replacements. Installation is straightforward and does not require special tools, making it suitable for both home mechanics and professional technicians. Following standard replacement procedures will guarantee optimal performance and longevity.

We emphasize the quality and reliability of our parts; however, due to the nature of this used component, we advise purchase with care. Our e-shop provides detailed information to help you make an informed decision. All functions of the part should be thoroughly tested before first use to ensure trouble-free operation in your vehicle.

For further information, advice, or assistance with selecting the correct part, please contact our customer support team. We are here to help you maintain the best care for your vehicle.

This ignition switch and fuel tank cap assembly is designed specifically for the Peugeot 307, providing an essential security and operational function for your vehicle. Supplied with one key and noted as having a damaged remote control, this unit ensures secure ignition operation and reliable fuel tank access.

Function And Importance

The ignition switch controls the power supply to the vehicle’s electrical systems and starts the engine, while the fuel tank cap protects the fuel system from contamination and theft. Over time, ignition switches may wear out due to frequent use, electrical faults, or mechanical damage, causing starting issues or security vulnerabilities.

Replacement And Compatibility

Intended for Peugeot 307 models, this replacement part fits seamlessly into the original lock system. Replacement typically involves removing the steering column cover to access the ignition switch and disconnecting the electrical connectors. The fuel tank cap can be replaced by simply unlocking and removing the old cap. Regular inspection is recommended, especially if you notice difficulty in turning the key or gas smell near the fuel cap.

Technical Information

• Manufacturer: PSA (Peugeot Citroën)
• Model: Peugeot 307
• Product Codes: 4162AS, 4162X4
• Additional Numbers: Original part numbers used by Peugeot for ignition switch and fuel cap assembly

Complete lock set intended for Peugeot 307 owners and professional workshops: this kit includes the ignition barrel (steering lock cylinder), fuel filler cap lock and the driver’s door lock cylinder together with one blade key. Ideal for replacing worn or damaged cylinders after years of use or following cylinder damage from forced entry. Product codes 4162AS and 4162X4 are commonly used references when searching for the correct replacement part.

Features And Benefits

This combined set restores mechanical security and convenience in one intervention. Replacing the ignition barrel and door/fuel locks at the same time reduces repeated work and ensures a single key operation if cut to the same profile. The included blade key allows immediate mechanical operation; cutting to match original key code gives the best fit. Designed to match OE specifications for Peugeot 307 lock geometry and mounting points.

How The Part Works

The ignition barrel contains tumblers that align when the correct key is inserted, allowing the steering lock to disengage and the ignition switch to rotate. Door and fuel filler locks operate on the same principle: when the correct blade key aligns internal wafers, the cam rotates to open the lock. Wear, corrosion or mechanical damage prevents correct alignment, causing sticking, key jamming or complete failure to turn.

How To Replace

• Disconnect The Battery Before Starting Work To Avoid Electrical Faults Or Airbag Issues.
• Ignition Barrel: Remove Steering Column Trim Panels, Release Retaining Screw/Clip, Withdraw Old Barrel And Replace With New Unit Ensuring Correct Steering Lock Engagement.
• Driver Door Lock Cylinder: Remove Interior Door Card, Release Retaining Clip, Extract Old Cylinder And Fit New One, Adjust Linkage And Test Latch Operation.
• Fuel Filler Cap Lock: Access From Inner Wing Or Through Filler Opening Depending On Bodywork, Remove Fixings, Replace Cylinder And Test Lid Operation.
• After Mechanical Fitment, Ensure Smooth Operation Of All Locks And That Key Turns Freely Without Excessive Force.

Installation Recommendations

• Use Genuine Or High-Quality Replacement Cylinders To Maintain Security And Long Service Life.
• Cut The Blade Key To The Original Code Or Match All Cylinders To One Key If Required By An Experienced Locksmith.
• If The Vehicle Uses A Transponder Key, Be Aware That Key Immobilizer Programming May Be Required For Engine Start — Have Procedures Ready If Needed.
• Lubricate Lock Mechanisms With Graphite Or A Suitable Lock Lubricant; Avoid Oil-Based Products That Attract Dirt.
• Always Follow Manufacturer Procedures When Removing Trim And Components To Prevent Damage To Clips And Panels.

Why This Part Usually Fails

• Mechanical Wear And Tear Over Years Of Usage Leading To Worn Tumblers Or Broken Springs.
• Corrosion From Moisture Or Road Salts Causing Stiffness Or Seizure Of The Cylinder.
• Damaged Or Worn Keys That Deform And Accelerate Cylinder Wear.
• Forced Entry Attempts Or Vandalism That Physically Damage Lock Internals.
• Ingress Of Dirt, Dust Or Ice In The Fuel Filler Lock Leading To Jamming.

Technical Information

• Manufacturer: Stellantis (Citroën/Peugeot)
• Model: Peugeot 307
• Product Codes: 4162AS, 4162X4
• Additional Numbers: 3071x

Compatibility And Notes

Designed For Peugeot 307 Applications. Confirm Fitment By Product Code And Lock Type. The Kit Is Suited For Mechanics And Skilled DIY Enthusiasts Who Have Experience With Steering Column Trim Removal And Lock Cylinder Replacement.

Recommended Tools

• Screwdrivers And Trim Removal Tools
• Torx/Hex Sockets As Required For Steering Column Fasteners
• Lock Cylinder Retaining Tool Or Small Punch For Clips
• Key Cutting Equipment Or Locksmith Service For Precise Key Duplication

Final Tips

Perform A Functional Check Of All Locks After Installation: Ensure Smooth Key Operation, Verify Door Latching And Fuel Cap Closure. If Any Electrical Symptoms Appear After Replacing The Ignition Barrel (Immobilizer Or Start Issues), Review Key Transponder Requirements And Immobilizer Procedures.