Mercedes W212 Door Lock Latch Mechanism Rear Left N/S A2047302135

Mercedes W212 Door Lock Latch Mechanism Rear Left N/S is an original component from the Locks and Latches category, designed for the rear left section of the vehicle body. It ensures precise door locking, proper interaction with the handle mechanism, and stable closing, which translates into safe vehicle operation. As a Mercedes Brand part, it maintains the factory fitment and performance characteristics specific to this model.

Specifications and technical data

• SKU: A2047302135-2
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2047302135
• Substitutable numbers: A2047302135, A 204 730 21 35
• Location on the vehicle: Rear, Left
• Category: Exterior Locks & Lock Hardware

Purpose and function of the lock

The presented lock is dedicated to the rear left side of the body, which guarantees proper positioning relative to the door guides, hinges, and seals. The component is responsible for:

• mechanical locking of the door wing in the closed position,
• interaction with the external and internal door handle,
• stable retention of the door while driving and when parked,
• correct response to signals from the central locking system. Thanks to its factory design, the lock maintains the correct geometry of the catches and levers, which minimizes the risk of looseness, rattling, or closing issues.

Construction and fitment for Mercedes W212

The lock has been designed specifically for the door architecture of the W212 generation Mercedes E-Class, taking into account the shape of the door panel and the routing of the cables. This means:

• compatibility with factory mounting points in the rear left door,
• proper alignment of the levers interacting with the handle and opening mechanism,
• adaptation to work within the existing central locking system. Such fitment facilitates installation and allows for maintaining the original door operation quality, without the need for modifications or adjustments to the component.

Condition, origin, and benefits of using a used part

The offered lock comes from the used original parts segment, which in practice means maintaining factory build quality while saving money compared to a new component. Compared to cheap replacements, an original lock from dismantling usually works better with the existing installation and door mechanics, reducing the risk of adjustment problems. If you want to make informed choices about components and understand why original parts from dismantling often prove to be a more durable solution than the cheapest replacements, it is worth reading the article Why do original parts from dismantling fit better (and last longer) than cheap equivalents?.

Installation and operation in the rear left body zone

The placement of the lock in the rear left part of the vehicle requires following the correct sequence for removing the upholstery, disconnecting the cables, and wiring connectors. Using an original component simplifies the installation process because:

• mounting holes and catches align with the factory ones,
• there is no need to modify the door panel,
• the mechanism works with the existing electrical harness and controls. After correct installation, the lock restores proper door locking and unlocking, which affects the comfort of daily use and the safety of passengers in the rear seat.

Expanding the scope of service work

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

Summary

Mercedes W212 Door Lock Latch Mechanism Rear Left N/S is a functional, original component designed for the rear left part of the body, which allows for restoring the correct operation of the door opening and closing mechanism. Choosing a used lock from the Locks and Latches group is a reasonable compromise between repair costs and maintaining the factory standard of fitment and mechanism performance.