Mercedes-Benz C E W202 W210 Front Left Door Lock Mechanism Actuator A2027204335

Mercedes-Benz C E W202 W210 Front Left Door Lock Mechanism Actuator is a factory-original locking mechanism designed for installation in the front left door. It offers precise actuator operation, ensuring reliable door locking and unlocking, as well as proper integration with the factory central locking system. Thanks to a design consistent with the manufacturer's specifications, the mechanism maintains full compatibility with the original electrical and mechanical installation.

Specifications and technical data

• SKU: rhd-A2027204335
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2027204335
• Substitutable numbers: A2027204335, A 202 720 43 35, KZ
• Location on the vehicle: Front, Left
• Category: Exterior Locks & Lock Hardware

Purpose and fitment

The presented lock mechanism is intended for installation in the front left door of Mercedes C-Class (W202 generation) and E-Class (W210 generation) vehicles. The component has been designed as part of the Locks and Latches system, which guarantees proper fitment with the door panel, handle, linkages, and the factory central locking actuator.

By maintaining the original geometry of the mounting points and attachment tabs, installation is performed using existing technological holes, without the need for modifications to the door structure or electrical wiring. This solution is particularly beneficial for professional body and mechanical repairs, as well as for replacing a damaged lock following a collision or wear and tear.

Mechanism construction and function

The mechanism combines the mechanical part responsible for locking with the actuator assembly that works with the vehicle's central locking system. In practice, this means that it:

• ensures smooth door locking from the driver or passenger side (depending on the market version),
• transfers movement from the exterior and interior handles to the lock latch,
• works with the door lock linkages and control levers,
• enables proper operation of the locking and unlocking functions via remote or key.

The appropriate internal construction reduces operational play and helps maintain the proper feel of the door – without excessive resistance when closing and with a distinct, secure latching action. This is particularly important in premium class vehicles, where user comfort and precision of body component operation are of great significance.

Operational characteristics

The item is a dismantled part, meaning it is a used component that retains the functionality required for further service. In practice, this allows for:

• reducing repair costs compared to purchasing a new lock,
• maintaining the original Mercedes vehicle specification,
• preserving consistent operation with other components of the locking system.

Choosing an original mechanism from the same model group minimizes the risk of fitment issues, improper door closing, or errors in the central locking system's operation. This solution is especially recommended for workshops specializing in the Mercedes brand and for users who expect stable and predictable operation of the locking system.

Application in repairs and upgrades

The front left door lock mechanism is suitable both for typical replacement of a damaged component and for more extensive bodywork – e.g., after accident repairs, door replacement, or restoration of older W202 and W210 models. Thanks to the original design, it is possible to quickly restore full door functionality without interfering with the vehicle's installation.

If you are planning a comprehensive repair or upgrade of the access zone in your Mercedes and need other components from the same group, such as cylinders, latches, or actuators, check out the available parts in the Mercedes Locks and Latches category.

Additional information and technical support

For users who are also addressing suspension and ride comfort alongside the locking system repair, a service guide describing ways to reduce costs while maintaining appropriate repair quality may be helpful. In this regard, it is worth reading the article Suspension knocking? Discover a clever way to restore factory handling precision without spending a fortune at the service center, which discusses a practical approach to selecting used components and optimizing repair budgets.