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 installation in the rear left door of the vehicle. It ensures the proper operation of the locking mechanism, seamless integration with the car's electrical system, and stable door closing, which translates into safe vehicle operation. This is a solution for users expecting factory-fit precision and reliable performance of the locking system.

Specifications and technical data

• SKU: A2047302135
• 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 vehicle placement

The presented lock is dedicated for installation in the rear left door (rear axle, driver's side in left-hand drive vehicles). The mechanism's design is adapted to the geometry of the door and guides in W212 series models, allowing for the maintenance of factory clearances, proper pressure, and correct interaction with both the exterior and interior door handles.

The placement on the vehicle is designed so that the lock works with the factory wiring, linkages, and security elements, minimizing the need for additional modifications during installation.

Construction and technical function of the lock

The door lock is responsible for several key operational functions:

• mechanical locking of the door in the closed position,
• transferring movement from the handle to the latch mechanism,
• interaction with the central locking and comfort system,
• maintaining a stable door position while driving.

As a component from the Locks and Latches category, this part is designed for resistance to operational loads, frequent opening and closing cycles, and variable environmental conditions (moisture, temperature changes). Thanks to this, it can be used both as a replacement part after mechanical damage and as part of a preventive replacement of a worn-out lock.

Benefits of using an original Mercedes lock

Using a lock dedicated to the W212 series allows for maintaining the consistency of the entire door system. The most important advantages include:

• Factory fit – compatibility with the door structure and mounts, without the need for modifying the sheet metal or guides.
• Stable mechanism operation – predictable locking and unlocking, which reduces the risk of the door not closing properly or opening accidentally.
• Compatibility with vehicle systems – correct interaction with the central locking and comfort functions provided for the specific model.
• Possibility of use in post-accident repairs or when replacing worn-out door system components.

Condition and service application

The offered lock is a used component, which makes it an attractive cost-effective solution while maintaining the manufacturer's original specifications. It is particularly useful in:

• repairs after mechanical door damage,
• cases of problems with locking or opening the rear left door,
• servicing fleet vehicles, where cost optimization while maintaining proper functionality is important.

Thanks to the preservation of the original design, the lock can be installed as a replacement for a worn component without interfering with other door parts.

Expanding the locking system in your Mercedes

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, cylinders, or additional locking elements, check out the available parts in the Mercedes Locks and Latches category.

For users interested in a broader perspective on selecting used OEM components, replacement strategies, and the impact of components on driving characteristics, an article comparing turbochargers in sports models may be helpful – you can find it here: Go-Kart Feeling XXL: used N18 turbocharger vs. B48 – what to choose for a Mini Cooper S?.