Description
Ignition Switch Plus One Key
High-quality replacement ignition switch with one key for Citroën C5 models. This unit restores reliable starting, steering lock function and door/ignition security for vehicles using part code 4162FE. Ideal for professional workshops and DIY mechanics who need a direct-fit ignition solution for affected C5 cars.
The ignition switch assembly controls the electrical supply to the starter, ignition system and accessories while providing mechanical locking via the barrel and key. Supplied with one key, the unit is suitable for vehicles that require a complete barrel-and-key exchange. The part is commonly referenced under code 4162FE and is associated with Stellantis Citroën/Peugeot parts ranges.
Technical Information
Manufacturer: Stellantis (Citroën / Peugeot)
Model: Citroën C5 (2005–2007)
Product Codes: 4162FE
Additional Numbers: —
Compatibility And Fitment
Designed primarily for Citroën C5 models from mid-2000s production years. Verify physical match with the original unit: housing shape, connector type and key profile. The assembly is intended as a direct replacement for C5 vehicles using the 4162FE reference; some Stellantis models share similar designs, but confirm fitment from the vehicle’s part label before installation.
Replacement Procedure
Recommended For: Experienced technicians and mechanically-inclined DIYers. Typical Steps:
- Disconnect Negative Battery Terminal to avoid short circuits and immobilizer faults.
- Remove Steering Column Trim Panels to expose the ignition assembly (usually secured by screws/clips).
- Turn Key To Accessory Position If Required And Remove Any Retaining Pins Or Screws Holding The Barrel.
- Disconnect Electrical Connector From The Ignition Switch Carefully.
- Extract The Old Ignition Switch/Barrel Assembly And Replace With The New Unit, Ensuring Correct Mechanical Engagement.
- Reconnect Electrical Connector, Refit Trim Panels And Reconnect Battery.
- Program Key/Immobilizer If Required (see note below) And Perform Function Check: Ignition Positions, Starter Engagement, Steering Lock Release, And Electrical Accessories.
Note On Immobilizer/Key Programming: Many Citroën C5 vehicles use transponder keys. After replacing the barrel or ignition switch, the new key may require immobilizer programming or synchronization with the vehicle’s ECU. Programming normally requires a diagnostic device compatible with Stellantis systems or assistance from an automotive locksmith/dealer.
Why This Part Fails Most Often
Common Causes Of Failure:
- Mechanical Wear: Repeated key use causes tumbler wear and looseness in the barrel over years of service.
- Broken Internal Components: Plastic or metal internal parts (retainers, springs, cam mechanisms) can fracture, preventing key rotation or release.
- Electrical Wear Or Corrosion: Contacts inside the ignition switch can wear or corrode, causing intermittent starting or accessory power loss.
- Worn Or Damaged Keys: A worn key profile can accelerate barrel wear and cause poor engagement.
Installation Recommendations
Use Correct Tools: Torx/screwdriver set, trim tools and a diagnostic tool for key programming if needed. Work On A Stable Surface With Battery Disconnected. Check Electrical Connectors For Corrosion And Clean Contact Surfaces If Necessary. After Fitment, Verify All Key Positions (Off, Accessory, On, Start) And Confirm Steering Lock Operates Smoothly.
Replacing the ignition switch and key is a practical repair to restore reliable starting and security. With correct fitment and, where necessary, professional immobilizer programming, this part returns full operational function to affected Citroën C5 vehicles.
