Mercedes W447 Boot Door Lock Tailgate Lid A4477401900

Mercedes W447 Boot Door Lock Tailgate Lid is an original component from the Locks and latches category, designed for the tailgate in W447 series models. This used Mercedes part allows for the restoration of proper trunk closing and locking, maintaining factory safety standards and daily operational comfort.

Specifications and technical data

• SKU: A4477401900
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A4477401900
• Substitutable numbers: A4477401900, A 447 740 19 00
• Category: Exterior Locks & Lock Hardware

Purpose and function of the tailgate lock

The tailgate lock in the Mercedes W447 is responsible for the mechanical and central locking of the rear door, working in conjunction with the vehicle's electrical system and central locking unit. A properly functioning component ensures:

• secure closing of the tailgate without play or unwanted vibrations,
• stable locking while driving,
• correct interaction with actuators and the opening mechanism.

By maintaining the original design, the lock is perfectly matched to the geometry of the tailgate and body, which translates into the correct operation of the entire rear vehicle system.

Benefits of using an original Mercedes lock

Choosing an original tailgate lock for the W447 primarily ensures compatibility with the factory locking system and predictable performance during long-term use. A component from the same product line as the original factory-fitted part provides:

• consistency with the factory electrical installation and control,
• proper fitment with the tailgate and body striker,
• preservation of the original operating parameters of the locking mechanism.

For users who prioritize technical repair accuracy, using an original part is a safe and predictable solution in terms of durability.

Characteristics of the used part

The offered lock comes from the secondary market, which allows for combining original manufacturer quality with a more cost-effective repair. A used part is a good solution in situations where:

• a quick replacement of a damaged lock is necessary without interfering with the tailgate structure,
• maintaining the factory manufacturing standard is important,
• optimizing service costs while keeping an original component is a priority.

This approach is often chosen by workshops specializing in the Mercedes brand and users who consciously utilize the used parts market.

Installation and practical application

The tailgate lock for the W447 is designed as a direct replacement for the factory equivalent, which facilitates service work. With the correct selection based on the vehicle model, it is possible to:

• retain original mounting points,
• connect to the existing wiring harness without modifications,
• restore the proper operation of the tailgate central locking system.

If you are planning a more extensive repair of the locking system in your car, it is worth checking out other items in the Locks and latches category to select a complete solution tailored to your specific vehicle configuration.

Used parts and repair cost-effectiveness

Using original components from the secondary market is a popular way to keep a car in good technical condition on a reasonable budget. For drivers interested in a broader perspective on second-hand parts, we have prepared a guide – check when used components are a sensible choice and what benefits they can bring. This allows for better planning of your service strategy and making informed decisions when selecting repair components.

Additionally, if you want to deepen your knowledge about the secondary market and the practical approach to the regeneration and replacement of body parts and accessories, it is worth visiting the specialized guide on selecting and using used car parts, which helps organize key information before making a purchasing decision.