Mercedes-Benz CL203 Coupe Front Right O/S Door Lock Latch Mechanism Actuator

Mercedes-Benz CL203 Coupe Front Right O/S Door Lock Latch Mechanism Actuator is a precision latch mechanism with an actuator, designed for installation in the front right door of the coupe body. This component from the Doors and door panels group ensures proper locking, unlocking, and integration with the factory central locking system, restoring full functionality to the driver or passenger door.

Specifications and technical data

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

Purpose and function in the vehicle

The presented lock with a latch mechanism and built-in actuator is dedicated to the front right side of the coupe body in Mercedes-Benz CL203 series models. It is responsible for securely closing the door, keeping it stably in the closed position, and ensuring proper interaction with the exterior and interior door handles.

This component is crucial for:

• smooth operation of the central locking system on the passenger or driver side (depending on the market),
• proper locking while driving and when parked,
• ensuring adequate pressure of the door against the body frame, which affects acoustic comfort.

Construction and technical characteristics

The door lock combines the latch mechanics and the electric actuator assembly in a single housing. This design reduces the number of connections, facilitates installation, and minimizes the risk of play or malfunction. Vehicle placement: front – right side allows for unambiguous identification of the mounting position within the bodywork.

The mechanism was designed as an original part for the Mercedes brand, which means it fits factory mounting points in the door, has the correct geometry for interaction with the striker on the pillar, and is compatible with the vehicle's electrical system. As a result, installation does not require any bodywork or electrical modifications.

Condition, application, and benefits of replacement

The offered lock comes from the used parts segment, which allows for an economical repair of the locking system while maintaining the manufacturer's original design. This solution is particularly beneficial when the vehicle exhibits symptoms such as:

• no response from the door to the signal from the remote control or central locking button,
• problems with closing or the door opening accidentally,
• irregular operation of the actuator on the right side.

Replacing the complete mechanism with the actuator allows for restoring the correct operation of the system without the need to disassemble and refurbish the old lock, which shortens service time and reduces the risk of recurring faults. The original Mercedes design ensures proper fitment with the door panel and maintains factory performance parameters.

Integration with the body and user comfort

As a component from the Doors and door panels group, the lock works directly with hinges, handles, seals, and the striker on the pillar. A properly functioning mechanism:

• stabilizes the door in the closed position,
• reduces vibrations and unwanted noises while driving,
• supports the maintenance of acoustic tightness and reduction of outside noise.

Thanks to this, the user regains the comfort of daily operation – the door closes securely without the need for excessive force, and the central locking system works consistently across the entire vehicle.

Fitment, identification, and selection support

To correctly select the lock for a specific body version and model year, it is worth verifying compatibility with the OEM part number and interchangeable numbers in the technical specification. This helps avoid installation problems and ensures full compatibility with the electrical system and comfort control modules.

If you want to deepen your knowledge on selecting parts from the secondary market and avoid mistakes when purchasing, use the expert advice available in the article No more bad purchases! How to professionally select used car parts.

If you are planning a comprehensive repair or upgrade of the door area in your Mercedes and need other components from the same group, such as locks, hinges, or door panels, check the available parts in the Mercedes Doors and door panels category.