Mercedes S205 Trunk Lid Lock Rear Tailgate Boot Catch Latch Actuator A0997400100

Mercedes S205 Trunk Lid Lock Rear Tailgate Boot Catch Latch Actuator is an original component from the Locks and latches group, designed for the rear of the vehicle body. It ensures secure locking of the tailgate, stable operation of the mechanism, and proper interaction with the factory opening and closing system in S205 series estate models.

Specifications and technical data

• SKU: A0997400600
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0997400600
• Substitutable numbers: A0997400600, A 099 740 06 00, A0997400100, A 099 740 01 00, A0997400300, A 099 740 03 00
• Location on the vehicle: Rear
• Category: Exterior Locks & Lock Hardware

Purpose and function of the tailgate lock

The presented tailgate lock is dedicated for installation in the rear of the vehicle, where it is responsible for the mechanical locking and releasing of the tailgate. A properly functioning lock guarantees secure closing of the trunk, reduces unwanted play, and minimizes the risk of accidental opening while driving.

Thanks to a design compliant with Mercedes factory standards, the component maintains the correct operating geometry, which translates into smooth engagement with the striker and stable retention of the tailgate in the closed position.

Construction and technical fitment

The lock has been designed as an OEM part, which means full compatibility with the vehicle's original installation – both in terms of mounting dimensions and the method of attachment to the tailgate structure. Its placement on the vehicle in the rear body area allows for direct replacement of a worn or damaged component without the need for bodywork modifications.

The presence of a dedicated part number and associated interchangeable numbers facilitates unambiguous identification of the component and selection of the correct lock for a specific car configuration, which is particularly important when working with service catalogs and OEM-based selection systems.

Condition, origin, and benefits of use

The offered lock comes from disassembly and is a used component, which allows for combining reasonable cost with the preservation of the manufacturer's original specifications. In practice, this means you receive a part with factory fitment, which can be an effective solution for post-accident repairs, mechanical damage, or issues with the tailgate closing.

Using an original lock in the rear of the vehicle allows you to:

• maintain the correct line and fitment of the tailgate with the body,
• preserve compatibility with factory opening mechanisms,
• reduce the risk of leaks and unwanted noises while driving.

Professional selection and integration with other elements

When replacing the tailgate lock, it is worth paying attention to the condition of the hinges, actuators, and seals so that the entire tailgate system works evenly. Proper selection of the part by OEM number and interchangeable numbers facilitates integration with the existing electrical and mechanical installation, which shortens assembly time and reduces the risk of operational problems.

If you are planning a broader repair of the locking mechanisms in your car, you can check other products in the Locks and latches category to choose a complete solution tailored to your specific Mercedes model.

Why choose an original Mercedes lock

The original tailgate lock ensures consistency with the vehicle's factory design, which is important for both user comfort and the durability of the entire tailgate system. Maintaining the parameters provided by the manufacturer reduces the need for additional adjustments and allows for predictable behavior of the mechanism in the long term.

If you are considering whether an original, replacement, or used part is a better choice, the article on the cost-effectiveness of original, replacement, and used car parts may be helpful, where you will find a comparison of costs, quality, and fitment by OEM numbers.