The locks play a vital role in vehicle security, preventing unauthorized access to the cabin and fuel tank. Over time, these components can wear out or become damaged due to frequent use, environmental exposure, or mechanical faults, making replacement necessary to maintain the safety and proper functioning of your vehicle.

Installing this lock set involves removing the interior door panels to access the lock mechanisms and ignition barrel. It is recommended for experienced mechanics or skilled DIY enthusiasts, as correct reassembly ensures smooth lock operation and reliable vehicle security.

Technical Information

• Manufacturer: PSA (Peugeot Société Anonyme)
• Model: Citroën Xsara, Xsara Picasso
• Product Codes: 4162Y9, 4162Z4
• Additional Numbers: NFP (No Further Production)

This lock set is an essential replacement part for restoring secure access to your Citroën vehicle. The product matches original equipment specifications, ensuring compatibility and durability. It is commonly sought after under the part numbers 4162Y9 and 4162Z4, making it easy to identify and order.

This complete lock set is designed for Citroën Xsara and Xsara Picasso vehicles. It includes driver and passenger door lock cylinders, fuel filler cap lock, and the ignition switch supplied with two matching keys. The kit restores security and reliable ignition operation, making it suitable for professional mechanics and DIY enthusiasts.

Key Features

• Complete kit: driver and passenger door lock cylinders, fuel cap lock, ignition switch and 2 matching keys.
• Direct-fit replacement compatible with OEM product codes 4162Y9 and 4162Z4.
• Restores door and fuel cap security and correct ignition operation.
• Supplied keys are mechanically cut to match the new cylinders.

Fitment

Compatible with Citroën Xsara and Xsara Picasso models. Always verify fitment with the vehicle VIN and the listed product codes before ordering. These parts are commonly searched by the part numbers 4162Y9 and 4162Z4.

Installation Notes

Replacing the door lock cylinders typically requires removal of the interior door panels to access the lock mechanisms. The ignition switch replacement generally requires removal of the steering column trim to access and remove the old barrel. Keys supplied are mechanically matched to the new locks. Vehicles equipped with transponder keys or immobilizer systems may require immobilizer reprogramming or key coding by a dealer or qualified locksmith.

Typical Failure Modes & Maintenance

Lock cylinders and ignition switches may fail due to normal wear, corrosion, contaminated or worn tumblers, water ingress, or mechanical damage. Symptoms include difficulty turning the key, intermittent starting or locking problems, loose or sticking locks. Replacing the complete set reduces the likelihood of mismatched components and recurring faults.

Technical Information

• Manufacturer: PSA (Citroën/Peugeot)
• Model: Citroën Xsara; Xsara Picasso
• Product Codes: 4162Y9, 4162Z4
• Other Numbers: 4162Y9|4162Z4, NFP