Smart Fortwo 451 Rear Tailgate Boot Lock Actuator Motor A4519064400

Smart Fortwo 451 Rear Tailgate Boot Lock Actuator Motor is an original component from the Locks and Latches group, designed for operation in the rear part of the vehicle body. It ensures secure, controlled locking of the tailgate, which translates into safe vehicle operation and stable performance of the opening and closing mechanism. This used component is a sensible choice for vehicle maintenance when you prioritize factory design and predictable operation of the locking system.

Specifications and technical data

• SKU: A4519064400
• Mark: Smart
• Condition: Used
• OEM Part Number: A4519064400
• Substitutable numbers: A4519064400, A 451 906 44 00
• Location on the vehicle: Rear
• Part type: Tailgate Lock
• Category: Exterior Locks & Lock Hardware

Purpose and function of the actuator

The tailgate lock actuator in the Smart Fortwo 451 model is responsible for the mechanical assistance of the locking and unlocking process of the tailgate. In practice, this means:

• stable closing of the tailgate without excessive force from the user,
• proper cooperation with the lock mechanism and latch,
• keeping the tailgate in a closed position while driving, even on uneven surfaces. Thanks to its fitment for the specific body model, the actuator operates in a predictable manner, which reduces the risk of play, rattling, or closing issues.

Construction and fitment to the rear of the vehicle

The component has been designed for installation in the tailgate area, taking into account the body geometry of the Smart Fortwo 451. Proper placement at the rear of the vehicle ensures:

• correct force transmission during opening and closing,
• cooperation with the factory lock and latch without the need for modifications,
• preservation of the original operating characteristics of the tailgate. As a part from the Locks and Latches group, the actuator is an integral element of the entire tailgate security system, affecting both the convenience of operation and the protection of transported cargo.

Benefits of using an original actuator

Using an original actuator in the Smart Fortwo 451 allows for maintaining the structural consistency of the vehicle. Compared to replacements, the factory component offers:

• compatibility with factory mounting points,
• predictable operating characteristics throughout the full range of tailgate movement,
• reduction of the risk of improper closing or accidental opening while driving. A used component is also a way to perform an economical repair while maintaining the original design specifications, which is particularly important when servicing vehicles used on a daily basis.

Application in service and modernization of youngtimers

The Smart Fortwo 451 is increasingly treated as an urban youngtimer, where owners want to combine functionality with the preservation of original technical solutions. A used tailgate lock actuator fits well into this approach, enabling:

• restoration of proper tailgate operation after the factory element has worn out,
• reduction of repair costs while maintaining parts from the same design group,
• maintaining the consistency of the locking system with other body elements. If you want to learn more about the possibilities of refreshing older cars using used components, check out the article The second life of a youngtimer – how used car parts rejuvenate cars from the 1998–2012 model years.

Expanding the lock system in Smart Fortwo

If you are planning a comprehensive repair or modernization of the tailgate area in your Smart and need other elements from the same group, such as locking mechanisms, cylinders, or additional mounting elements, check the available parts in the Smart Locks and Latches category.