Smart W452 Roadster Door Lock Mechanism Latch Right O/S 0009721V004

Smart W452 Roadster Door Lock Mechanism Latch Right O/S is an original component from the Locks and Latches group, designed for the right side of the vehicle body. It ensures precise cooperation with the factory door mechanism, guaranteeing proper locking, opening, and interaction with other vehicle systems. This technical solution was created specifically for Smart models, allowing for the restoration of full functionality to the passenger-side door.

Specifications and technical data

• SKU: Q0009721V005000000
• Mark: Smart
• Condition: Used
• OEM Part Number: Q0009721V005000000
• Substitutable numbers: Q0009721V005000000, Q 0009720V005000000, Q0009720V005000000, Q 0009720V006000000, Q0009720V006000000
• Location on the vehicle: Right
• Part type: Door Lock
• Category: Exterior Locks & Lock Hardware

Purpose and function of the right door lock

The right door lock in the Smart W452 Roadster is responsible for the mechanical locking of the door panel, interaction with the external and internal handles, and proper closing of the door against the body. Its placement on the right side of the vehicle allows for a direct replacement of the factory component without interfering with the door structure. By maintaining the original geometry and mounting points, this component enables:

• stable retention of the door in the closed position,
• proper operation of the opening mechanism from both the inside and outside,
• consistent operation with other components of the locking system.

Benefits of using an original Smart lock

The original Smart right door lock was designed specifically for the W452 Roadster body structure, which translates into precise fitment to factory mounting holes and predictable behavior in daily use. The lack of need for modifications or adaptations shortens installation time and reduces the risk of subsequent looseness or leaks. The most important advantages of using this component include:

• compatibility with the factory locking system in Smart models,
• preservation of the original operating characteristics of the handles and opening mechanism,
• the ability to restore full door functionality after a collision or wear and tear.

Technical characteristics and installation

The component belongs to the Locks and Latches group, which means it is a part responsible for the vehicle's operational safety and the comfort of daily door use. Its placement on the right side of the vehicle facilitates the selection of the correct component during repair – the lock is intended specifically for this side of the body, which eliminates the risk of confusion between the left and right sides. With proper installation, the lock works with the existing wiring and door mechanics, and the replacement process is limited to removing the upholstery, unscrewing the old component, and installing the new one at the same mounting points. As a result, the repair is predictable and can be performed under standard workshop conditions.

Component condition and service application

The presented right door lock is a used part, which makes it an attractive service solution for users looking for a technically sound replacement on a reasonable budget. Such components work perfectly for post-accident repairs, replacing worn-out locking mechanisms, and restoring full body functionality in older Smart W452 Roadster units. Choosing an original lock from this group allows you to maintain the structural integrity of the vehicle and reduce the risk of problems with door closing, loosening while driving, or improper interaction with other system elements. If you are planning a comprehensive repair or upgrade of the door area in your Smart and need other elements from the same group, such as locking mechanisms, catches, or guide elements, check the available parts in the Smart Locks and Latches category. To better plan service work and reduce vehicle downtime in the workshop, it is worth reading the guide describing how a wide selection of parts in one place affects the speed of repairs – details can be found in the article No more weeks of waiting – how a wide assortment in one warehouse really shortens your car's downtime at the mechanic?.