Smart 452 Roadster Front Door Lock Catch Latch Linkage Left N/S 0009720V004

Smart 452 Roadster Front Left Door Lock 0009720V004 is an original part from the Locks and Latches category, designed for installation in the left front door of a Smart vehicle. This component ensures the proper functioning of the door locking and unlocking mechanism, supporting safe vehicle use and stable integration with the factory system.

Specifications and technical data

• SKU: Q0009720V004
• Mark: Smart
• Condition: Used
• OEM Part Number: Q0009720V004
• Substitutable numbers: Q 0009720V004000000, Q0009720V004000000, Q0009720V005000000, Q0009720V006000000, Q 0009720V006000000
• Location on the vehicle: Front, Left
• Part type: Door Lock
• Category: Exterior Locks & Lock Hardware

Intended Use and Vehicle Placement

The presented lock is dedicated for installation in the front – left side of the body, meaning it is responsible for operating the driver's door on the Smart 452 Roadster model. The lock's construction is adapted to the factory door panel and original mounting points, allowing the part to work with the existing handle, rods, and vehicle's electrical system.

The placement on the vehicle has been precisely defined, which facilitates the selection of the correct component for body repairs, post-collision replacement, or troubleshooting issues related to door jamming.

Technical and Functional Characteristics

As a part of the Locks and Latches group, the front left door lock is responsible for:

• mechanical locking and unlocking of the driver's door,
• operation with the interior and exterior door handles,
• securely holding the door in the closed position while driving,
• proper functioning within the vehicle's factory security system.

Its original Smart brand origin promotes maintaining the correct mechanism geometry, appropriate working clearance, and compatibility with other door components. This allows the lock to be used for both routine repairs and comprehensive body restoration after damage.

Part Condition and Service Application

The product is categorized as used body components, enabling economical vehicle repair while maintaining the original lock design. This type of part is particularly useful in situations where:

• the lock has suffered mechanical damage due to a collision or break-in,
• problems with door closing or locking are observed,
• the part needs to be replaced with one that matches the factory Smart specification.

Choosing an original front left door lock minimizes the risk of fitting issues, squeaking, or improper locking, which can be common with aftermarket replacements of imprecise dimensions.

Benefits of Using an Original Smart Lock

Using an original Smart 452 Roadster door lock helps maintain the structural integrity of the body and predictable operation of the opening and closing mechanism. Key benefits include:

• factory fit for the driver's side door,
• compatibility with original mounting points and rod routing,
• suitability for use within standard service procedures,
• maintaining the proper level of safety during driving and when parked.

For workshops and individual users, this translates to simpler installation, fewer modifications, and predictable mechanism behavior after the repair is completed.

Related Parts and Additional Information

If you are planning comprehensive service for the locking mechanisms on your Roadster and are also interested in other parts responsible for door locking, handles, or locking mechanisms for this brand, check out the available parts in the Smart Locks and Latches category.

For those interested in a broader context of selecting original body components and comparing construction solutions across different model generations, an article describing construction differences and the importance of OEM parts may be helpful – you can find it here: Classic Mini vs Modern MINI – How Construction Has Changed and Which Original Mini Parts Help Preserve Their Character.