Mercedes W166 W204 W212 W218 Tailgate Boot Lock Catch Latch A2047400635

Mercedes W166 W204 W212 W218 Tailgate Boot Lock Catch Latch is an original component from the Locks and Latches group, designed for precise operation of the tailgate in selected Mercedes models. This used OEM component ensures factory-fit, stable operation of the locking mechanism, and proper integration with the vehicle's electrical system.

Specifications and technical data

• SKU: A2047400635
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2047400635
• Substitutable numbers: A2047400635, A 204 740 06 35
• Part type: Tailgate Lock
• Category: Exterior Locks & Lock Hardware

Purpose and function of the tailgate lock

The tailgate lock in Mercedes W166, W204, W212, and W218 series models is responsible for secure locking and unlocking of the tailgate, as well as keeping the hatch stably in the closed position while driving. A properly functioning mechanism eliminates play, unwanted noises, and the risk of the trunk opening accidentally. The original design of the lock is optimized for compatibility with the factory opening system – whether manual, via the interior button, or via the key fob, if the vehicle is equipped with such a system. This ensures consistent operation of the entire body locking system.

Benefits of using an original Mercedes lock

Choosing a tailgate lock dedicated to specific Mercedes generations means:

• Factory fit to the mounting points and geometry of the tailgate, with no modifications required.
• Proper cooperation with the electrical system and sensors indicating the closure status.
• Reduced risk of rear body leaks resulting from improper closing.
• Stable operation of the locking mechanism under typical operating conditions. Using an original element from the Locks and Latches group helps maintain the structural integrity of the vehicle, which is important for both user comfort and the vehicle's future resale value.

Characteristics of the used component

The presented tailgate lock is a used component, sourced from vehicle dismantling. This type of part is a sensible choice for users who want to restore full functionality to the tailgate while maintaining a favorable cost-to-quality ratio. The used OEM element retains its original design, ensuring that installation proceeds in a manner similar to the factory standard. Before installation, it is recommended to perform a standard check of the mechanism's operation, verify the smoothness of the latch movement, and check the compatibility with the vehicle's wiring harness. A properly selected lock helps eliminate issues with the hatch not closing, the need for excessive force, or false "trunk open" messages.

Installation and maintenance tips

When replacing the tailgate lock, it is worth paying attention to:

• correct alignment of the lock relative to the striker,
• condition of the seals and hatch guides,
• cleanliness of electrical sockets and absence of corrosion on contacts,
• smooth operation of cables and any levers associated with the mechanism. After installation, it is recommended to test the opening and closing process several times to ensure that the hatch closes easily, without excessive force, and that the dashboard indicators function correctly. This approach minimizes the risk of needing to revisit the mechanism in the near future.

Expanding the Mercedes locks and latches system

If you are planning a comprehensive repair or upgrade of the rear body area in your Mercedes and need other elements from the same group, such as door locking mechanisms, actuators, or lock cylinders, check out the available parts in the Mercedes Locks and Latches category.

More on operating Mercedes powertrains

During body and locking system maintenance, it is also worth planning a review of key engine components, especially in the brand's popular diesel units. If you are interested in how to effectively refresh the performance and refinement of a modern diesel engine, check out the article Second life for the Mercedes OM642 engine – how injectors and turbochargers restore the power of the 3.0 V6 CDI, where you will find practical information on common faults and regeneration options.