Description
Reliable ignition switch designed for Peugeot 307 single-key models. Presented with original product references 4162X4 and 4162AS, this unit is intended for professional workshops and competent DIYers who need a direct-fit replacement that restores ignition contact and steering-lock operation quickly and accurately.
Features
- Direct-fit replacement for Peugeot 307 single-key variants.
- Matches common PSA part references: 4162X4 / 4162AS for easy identification.
- Restores mechanical key turn, electrical ignition contact and steering lock engagement.
- Designed for workshop installation or experienced DIY maintenance.
Installation & Replacement
Replacement is straightforward for trained technicians: disconnect the battery, remove lower and upper steering column covers, release fixing screws, withdraw the old ignition barrel/switch assembly and install the new unit ensuring correct alignment of the mechanical lock and electrical connector. Reassemble column covers and reconnect the battery. If the vehicle has an immobiliser or encoded key, confirm key recognition or follow manufacturer reprogramming steps if required.
Function And Common Failures
The ignition switch provides the mechanical interface for the vehicle key and the electrical contacts required to power starter and ignition circuits. Failures commonly occur due to worn tumblers, broken wafers, internal contact wear, corrosion or damage from forced key operation. Symptoms include difficulty turning the key, intermittent ignition, failure to start or inability to lock/unlock the steering column.
Technical Information
This part is useful for fast, accurate identification on service orders or when searching by part number. Ideal for garages and DIY enthusiasts who require a clear match to the Peugeot 307 ignition system and want predictable fitment and function.
