Description
Door Lock Mercedes W212 W204 Rear Left N/S Latch Mechanism Actuator is an original component from the Locks and latches group, designed for installation in the rear left door of Mercedes vehicles. The precise construction of the mechanism ensures secure locking, proper cooperation with the door handle, and stable operation of the central locking system, which translates into safe and comfortable vehicle use.
Specifications and technical data
- SKU: A0997300535-3
- Mark: Mercedes (Genuine OE)
- Condition: Used
- OEM Part Number: A0997300535
- Substitutable numbers: A0997300535, A 099 730 05 35
- Location on the vehicle: Rear, Left
- Category: Exterior Locks & Lock Hardware
Purpose and function of the lock
The presented lock is dedicated to installation in the rear left door, which means its geometry, mounting points, and cable routing are matched to this specific position in the bodywork. It is responsible for the mechanical locking of the door, cooperation with the cylinder or central locking actuator, and proper closing of the door wing against the body.
This element is crucial for:
- maintaining proper door pressure against the seals,
- ensuring the correct operation of the central locking system,
- maintaining the safety of passengers in the rear seat,
- eliminating play and unwanted noises while driving.
Construction and fitment for Mercedes W212 / W204
The lock has been designed specifically for the door architecture of Mercedes W212 and W204 models, offering factory-grade fitment to the original mounting holes and guides. The construction combines the mechanical part responsible for locking and a set of components cooperating with the vehicle’s electrical system, which enables proper integration with the existing opening and closing system.
Such fitment reduces the need for modifications, allows for maintaining the original door line, and ensures proper cooperation with handles, cables, and seals. In practice, this translates into stable door closing, predictable mechanism operation, and no adjustment issues after installation.
Condition of the item and benefits of using a used part
The offered door lock comes from the secondary market, which means it is a used part that retains the functionality required for further operation. Choosing this solution allows for an economical vehicle repair while maintaining the manufacturer’s original specifications.
The main advantages of using an original used lock include:
- maintaining compatibility with the factory door construction,
- reducing the risk of fitment issues compared to aftermarket replacements,
- a favorable cost-to-durability and quality ratio.
Why choose this door lock
In case of problems with closing, locking, or opening the rear left door in a Mercedes, replacing the lock with an original component from the same model group is one of the most effective solutions. Precise mechanism operation affects the comfort of daily use, and proper locking is important both for driving safety and for protecting the vehicle’s interior.
Selecting the right lock for a specific model and mounting side minimizes the time required for repair, limits the need for additional adjustments, and allows for restoring the factory operation of the door opening system. This is particularly important in premium class cars, where quiet operation, repeatable closing, and stable central locking performance are expected.
Additional information and related products
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, actuators, or lock cylinders, check the available parts in the Mercedes Locks and latches category.
For drivers who want to better plan vehicle service and consciously choose maintenance components, a guide describing the most frequently replaced components in a car may be helpful – you can find practical tips in the article TOP 10 most frequently replaced parts in your car.
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