Citroën C4 Grand Picasso Front Door Lock Cylinder Latch Barrel Left N/S 9170EJ

Citroën C4 Grand Picasso Front Door Lock Cylinder Latch Barrel Left N/S is a precision component from the Locks and latches group, designed for use in the front left door of the vehicle. It ensures proper locking, unlocking, and stable operation of the closing mechanism, which translates into safe vehicle use and correct central locking functionality. This technical solution is dedicated to the Citroën door structure and designed for long-lasting performance.

Specifications and technical data

• SKU: 9170EJ
• Mark: Citroën
• Condition: Used
• OEM Part Number: 9170EJ
• Substitutable numbers: 9170EJ, 9170 EJ
• Location on the vehicle: Front, Left
• Part type: Door Lock
• Category: Exterior Locks & Lock Hardware

Purpose and function of the front left door lock

The presented door lock cylinder is responsible for the mechanical operation of locking and opening the front left door, working in conjunction with the lock cylinder, rods, and handle mechanism. Its placement in the front – left side of the body zone means this component has a significant impact on daily vehicle operation from the driver's side, including ease of entry, exit, and parking security. A properly selected lock cylinder minimizes the risk of play, jamming, and leaks within the door area, which is particularly important for the intensive use of a family car like the Citroën C4 Grand Picasso. The design, intended for a specific model, allows for maintaining the factory geometry of the rods and handles.

Benefits of using an original lock cylinder

Using a dedicated lock cylinder in the front left door ensures:

• consistency with the factory locking and central locking system,
• proper transmission of forces from the external and internal handle to the door mechanism,
• stable cooperation with the vehicle's electrical system (if the system is integrated with central locking),
• preservation of the original operating characteristics of the driver's side door. Thanks to its fitment to the specific Citroën body structure, installation is straightforward, without the need for mounting modifications or interference with the door sheet metal. This solution allows for the restoration of full locking functionality after accident repairs or following the wear of a previous component.

Installation and operational characteristics

The lock cylinder designed for the front left door is engineered to work with the original mounting system in the Citroën C4 Grand Picasso doors. The appropriate placement of mounting points and the correct geometry of the element facilitate installation in factory holes and guides. This makes it possible to maintain the proper position of the door panel relative to the body and ensures correct closing. The used nature of the part means that the component comes from dismantling, which in practice allows for combining a favorable purchase cost with the preservation of the manufacturer's original specifications. This is a solution often chosen for maintenance repairs when priority is given to compliance with the factory design and a rational service budget.

Application in the vehicle safety system

A functional lock cylinder in the front left door is important not only for utility but also for safety. It is responsible for the proper locking of the door while driving and when parked, which limits the risk of accidental opening and hinders unauthorized access to the vehicle interior. In combination with other elements of the locking system, it creates a coherent system protecting the passenger cabin. A properly selected element from the Locks and latches group allows for maintaining the factory security standard provided by the vehicle manufacturer, without the need for universal solutions that might require installation compromises. If you are planning a comprehensive repair or upgrade of the door area in your Citroën and need other components from the same group, such as locking mechanisms, cylinders, or catches, check out the available parts in the Citroën Locks and latches category.

Additional information and knowledge about used parts

When selecting used locking components, it is worth paying attention to their origin and compatibility with the specific model's design. A properly selected front left door lock cylinder allows for maintaining vehicle functionality at a stable level while reducing service costs. If you are interested in the broader context of using original parts from dismantling in other premium car brands, you will find practical tips in the article Mercedes – comfort, prestige, and durability. Why is it worth choosing original used parts?.