Description
Overview
High-quality replacement ignition switch supplied with a single key, suitable for PSA Group vehicles. This ignition barrel restores reliable starter engagement and accessory power on compatible Citroën and Peugeot models. Common reference numbers for this unit are 4162EA and 9170X4, making it easy to find by part number.
Fitment
Designed to fit Citroën C4 and Peugeot 407 models. Always confirm compatibility by comparing the part numbers 4162EA / 9170X4 with the original unit or your vehicle documentation before purchase.
Installation Notes
- Disconnect the vehicle battery before starting to avoid short circuits.
- Remove the upper and lower steering column covers to access the ignition lock cylinder.
- Release the retaining clip or screw holding the old barrel in place and slide it out with the key in the correct position.
- Insert the new ignition barrel with the supplied key, secure the retaining elements and reassemble the column covers.
- Note: Some PSA vehicles require immobilizer transponder programming or key coding after replacement. Have diagnostic equipment or a qualified locksmith available if the vehicle does not recognize the new key.
Common Faults & Maintenance
Typical issues include worn tumblers, key sticking, difficulty turning the key, intermittent contact causing no-start or loss of accessory functions, and physical damage to the cylinder. Frequent causes are wear from use, debris ingress, and heavy keychains. Regular inspection and gentle operation extend service life.
Technical Information
- Manufacturer: PSA (Citroën / Peugeot)
- Model: Citroën C4, Peugeot 407
- Product Codes: 4162EA
- Additional Numbers: 9170X4
Before installation, verify the part numbers on your original ignition switch and ensure any immobilizer or key programming needs are addressed. Suitable for professional workshops and experienced DIY mechanics seeking a direct-fit replacement identified by part numbers 4162EA and 9170X4.
