Mercedes W415 Rear Sliding Door Lock Latch Linkage A4157402800

Mercedes W415 Rear Sliding Door Lock Latch Linkage is an original component from the Doors and door panels group, designed for the rear section of the vehicle body. It ensures secure locking of the sliding door, which translates into stable mechanism operation and safe vehicle usage. Using this component allows for a technically correct repair without the need to resort to expensive replacements of unknown origin.

Specifications and technical data

• SKU: A4157402800
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A4157402800
• Substitutable numbers: A4157402800, A 415 740 28 00
• Location on the vehicle: Rear
• Color: Black
• Category: Doors & Door Skins

Purpose and function of the component

The rear sliding door lock latch is responsible for mechanically securing the door leaf in the closed position. A properly selected and functional component:

• stabilizes the door while driving,
• reduces unwanted play and rattling within the bodywork,
• supports the correct operation of the entire guide and lock system,
• improves acoustic comfort inside the cabin.

Thanks to being tailored to the specific vehicle generation, the factory mounting geometry is preserved, which facilitates installation and minimizes the risk of issues with door closing.

Construction and functional features

The component has been designed as a body part operating under demanding conditions typical for sliding doors. The latch construction ensures:

• adequate body rigidity,
• precise cooperation with the lock mechanism and guide rail,
• resistance to typical operational loads in the rear zone of the vehicle.

The black finish allows for aesthetic integration with other door elements and masks typical signs of wear, which is important for body repairs focused not only on function but also on a consistent appearance.

Placement on the vehicle and installation

The presented latch is intended for installation in the rear part of the vehicle, in the sliding door area. Such placement requires a component with appropriately selected geometry and operating characteristics to:

• ensure smooth locking and unlocking of the door,
• maintain the correct alignment of the door leaf against the body,
• preserve the tightness and stability of the entire door module.

The used component allows for an economical repair while maintaining the original manufacturer's specification. In practice, this means the possibility of replacing a damaged lock without the need to modify mounts or interfere with the door structure.

Benefits of using an original lock

Using an original rear sliding door lock latch in a vehicle of this brand brings a number of practical benefits:

• preservation of factory operating parameters of the door mechanism,
• better fit than in the case of many replacements,
• reduction of the risk of accelerated wear of guides and hinges,
• possibility of precise adjustment after installation.

For workshops and individual users, this means a stable repair result and a lower risk of needing to re-intervene in the sliding door area after a short period of operation.

Related body components and additional information

If you are planning a comprehensive repair or modernization of the side body area in your Mercedes and need other elements from the same group, such as panels, reinforcements, or complete door leaves, check the available parts in the Mercedes Doors and door panels category.

When planning broader service work, it is also worth familiarizing yourself with practical tips regarding the selection of used mechanical components – you will find helpful information in the article Used gearbox – when is it worth it and what you need to remember, which discusses key aspects of assessing the technical condition and cost-effectiveness of purchasing parts from the secondary market.