Description
Ignition switch, fuel filler cap plus one key.
Overview
Complete lock set designed for Citroën C5 (2005–2007) vehicles including the ignition switch (ignition barrel), the locking fuel filler cap and one matching key. This unit replaces worn or damaged locks and restores secure operation of the ignition and the fuel filler. Commonly searched by product codes 4162FE and 4162HE.
Function And Benefits
- Ignition Switch: Controls electrical supply to starter and ignition circuits and provides mechanical security for vehicle start-up.
- Fuel Filler Cap: Locks the fuel filler to prevent tampering and fuel theft and ensures a correct seal of the fuel tank flap where applicable.
- Single Key Supplied: Allows immediate use after mechanical installation; in many vehicles key synchronization or immobilizer programming may be required depending on the vehicle equipment.
How To Replace (High-Level Guide)
- Disconnect Battery: For safety and to avoid electrical faults, disconnect the negative battery terminal before starting work on the ignition switch.
- Access Ignition Switch: Remove steering column covers (usually secured with screws) to gain access to the ignition barrel and retaining hardware.
- Remove Old Unit: Unscrew retaining bolts/clips and carefully withdraw the ignition switch assembly. Note wiring connector positions for reassembly.
- Install New Unit: Fit the new barrel/switch in the correct orientation, secure fasteners, reconnect electrical connectors and reassemble trim.
- Fuel Filler Cap Replacement: Open filler flap, remove the locking cap assembly (typically retained by screws or a retaining ring) and install the new lock and cap. Check locking/unlocking function of the cap with the supplied key.
- Final Checks: Reconnect battery, verify ignition switching, starter engagement, steering lock operation and fuel cap locking/unlocking. If the vehicle uses an immobilizer, key programming may be necessary for engine start.
Signs Of Failure
- Difficulty Turning The Key Or Stiff Operation.
- Ignition Not Cranking Or Intermittent Electrical Supply On Start.
- Key Stuck In Lock Or Cannot Be Removed.
- Fuel Cap Lock Won’t Engage Or Fuel Filler Won’t Secure Properly.
Most Common Failure Reasons
- Mechanical Wear: Worn tumblers and key teeth from long service life or frequent use.
- Corrosion And Dirt: Moisture, road salt and debris can corrode internal components and locking mechanisms.
- Broken Plastic Components Or Springs: Internal plastic parts and small return springs can fracture over time, causing jamming or loss of function.
- Forced Entry Or Misuse: Excessive force on the key or attempted forced entry damages tumblers and barrels.
Technical Information
- Manufacturer: Stellantis / Citroën
- Model: Citroën C5 (2005–2007)
- Product Codes: 4162FE, 4162HE
- Other Numbers: —
Installation Recommendations
- Use Correct Tools: Torx and metric screwdrivers are commonly required; avoid improvised tools that can damage trim or fasteners.
- Disconnect Battery Before Work: Prevents short circuits and unintended airbag or electrical faults.
- Lubrication: Use graphite or specialist lock lubricant sparingly on the keyway to ensure smooth operation—avoid oil-based lubricants that attract dirt.
- Test Before Final Reassembly: Verify ignition, steering lock and fuel cap operation before refitting trims to ensure correct installation.
- Immobilizer Note: If the vehicle is equipped with an immobilizer, key programming or synchronization may be required for engine start; account for this in workshop planning.
Why Choose This Replacement
Replacing the complete lock set with a single unit restores mechanical security and simplifies workshop time by supplying the ignition barrel, fuel filler cap and a matching key in one package. Using the correct product codes (4162FE / 4162HE) ensures a better fit and reduces rework during installation.
Order this lock set to bring back reliable ignition and fuel filler security for your Citroën C5 (2005–2007).
