Description
Overview
The Lock Set One Key for Citroën Xsara Picasso (4162W5, 4162S0) provides a complete locking solution for the driver and passenger doors, fuel filler cap and ignition barrel with one matching key. Designed for mechanics and DIY enthusiasts, this set simplifies replacement and key management while restoring secure access to the vehicle.
What’s Included
Complete set includes: driver door lock, passenger door lock, fuel filler cap lock, ignition barrel (steering column lock) and one cut and coded key. Part numbers 4162W5 and 4162S0 identify the set and are commonly used when ordering.
Function And Common Failures
The locks secure vehicle access, enable ignition operation and prevent fuel theft. Common failure causes include worn tumblers, broken lock cylinders, corrosion from moisture, damaged keys and internal mechanical wear. Typical symptoms requiring replacement are sticking or non-turning keys, intermittent locking/unlocking, or ignition key not engaging.
Replacement Guidance
For professional results: remove inner door panels to access door lock mechanisms, disconnect linkages and any electrical connectors where present, unbolt and remove the old lock module, then install the new unit and reassemble. Ignition barrel replacement often requires access behind the steering column; follow vehicle-specific procedures to avoid airbag and steering column damage. The supplied key must be cut or coded to match the new locks—key cutting and synchronization should be performed by a qualified technician if unsure.
Technical Information
- Manufacturer: PSA Citroën Peugeot
- Model: Citroën Xsara Picasso
- Product Codes: 4162W5, 4162S0
- Other Numbers: 4162S0 | 4162W5







