Mercedes CLC-Class CL203 Front Right O/S Door Lock Latch Mechanism Actuator

The Right Front Door Lock for Mercedes CLC‑Class CL203 is an original latch mechanism with an actuator, designed for installation on the driver's or passenger's side depending on the market. This component from the Doors and Door Panels category ensures proper locking, unlocking, and cooperation with the central locking system in the CLC‑Class CL203 body. It's a practical solution for users who want to restore full door closing functionality while maintaining the factory design.

Specifications and technical data

• SKU: A2037201835
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2037201835
• Substitutable numbers: A2037201835, A 203 720 18 35
• Location on the vehicle: Front, Right
• Category: Doors & Door Skins

Application and Fitment for Mercedes CLC‑Class CL203

The presented lock mechanism is specifically designed for the CLC‑Class CL203 body, intended for the front right side of the vehicle. This ensures proper fitment with the door structure, linkages, cables, and electrical system of this particular model.

Thanks to its factory geometry of the housing and mounting points, the lock cooperates with the original external and internal door handles, the lock cylinder (if present), and the factory central locking system. This avoids the need for bodywork modifications or adapter mounts.

Mechanism Construction and Actuator Function

The mechanism combines a mechanical part responsible for latching the door and an electric actuator that controls locking and unlocking via the remote control or an in-cabin button, all within a single housing. This design ensures:

• consistent operation with the factory central locking system,
• proper cooperation with the vehicle's electronics,
• stable holding of the door panel in the closed position,
• smooth transitions between locked and unlocked states.

Appropriately selected internal gear ratios and latch design minimize play and noise during closing, contributing to a more comfortable door operation.

Condition, Origin, and Benefits of Choosing a Used Part

The offered door lock comes from the original Mercedes production line and is a used component. This type of part, sourced from disassembly, retains its factory design parameters while offering an economical alternative to a new replacement of unknown origin.

Choosing an original used mechanism allows you to:

• maintain the consistency of the door system with the rest of the body,
• preserve compatibility with the factory electrical system,
• reduce repair costs while maintaining OEM quality.

Installation and Service Aspects

The lock is designed for installation in place of the factory mechanism on the front right side. During replacement, it is recommended to:

• remove the door trim while preserving the original clips,
• check the condition of the linkages, handles, and guides,
• verify the actuator's proper operation after connecting the electrical plug.

After installation, it is advisable to verify the central locking system's operation, remote locking, and manual opening from the inside and outside to ensure the mechanism cooperates correctly with other door components.

Mercedes Doors and Door Panels – Selecting the Right Lock

If you are looking for other components from the Doors and Door Panels category for your Mercedes, use the dedicated subpage where you will find a wide selection of compatible parts: Mercedes Doors and Door Panels.

How to Verify Compatibility by OEM Numbers

When selecting a door lock for a specific CLC‑Class CL203 version, it is crucial to compare the OEM number and interchangeable numbers with the data in your vehicle or the manufacturer's catalog. In practice, this helps avoid situations where the mechanism differs in construction details despite a similar appearance.

If you want to learn how to effectively check part compatibility by numbers, it is worth reading the practical guide: Risk-free online parts shopping – verifying components by OEM numbers. This will help you more easily confirm that the selected lock is suitable for your Mercedes model.