Door Lock Mercedes W204 W212 Front Left N/S Mechanism Actuator Latch A2047203735

Visual condition of the part

The product shows signs of use visible in the photos.

Door Lock Mercedes W204 W212 Front Left N/S Mechanism Actuator Latch is an original locking mechanism designed for installation in the front left door of Mercedes mid-size and luxury vehicles. This complete lock mechanism with actuator and latch ensures proper closing, locking, and unlocking of the door, maintaining the factory functionality of the central locking system. Thanks to its design compliant with manufacturer standards, it provides a reliable service solution for demanding users.

Specifications and technical data

• SKU: rhd-A2047203735-4
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2047203735
• Substitutable numbers: A2047203735, A 204 720 37 35, A0997200735, A 099 720 07 35
• Location on the vehicle: Front, Left
• Category: Doors & Door Skins

Purpose and vehicle placement

The presented lock is dedicated to installation in the front left door, on the driver's side in left-hand drive vehicles. The component operates in the door edge area, working in conjunction with the exterior handle, interior handle, and the central locking system. Correct placement within the door structure guarantees proper bolt guidance, stable holding of the door panel, and correct interaction with sensors and body electronics.

Construction and function of the lock mechanism

The mechanism combines a mechanical part and actuators responsible for controlling the locking process. The internal system of latches, levers, and guides is responsible for:

• stable retention of the door in the closed position,
• smooth opening using the interior or exterior handle,
• consistent cooperation with the central locking system and the vehicle's electrical installation,
• transferring movement from the lock cylinder or actuator to the door bolt.

Thanks to the factory design, the lock maintains the appropriate operating geometry, which reduces the risk of door jamming, play in the latch, or improper closing. This is particularly important in Mercedes vehicles, where the precision of body component fitment affects acoustic comfort and the overall perception of quality.

Benefits of using an original Mercedes door lock

Using an original lock in the door area provides a number of practical service and operational benefits:

• Factory fit – a design consistent with the body manufacturer's solutions eliminates the need for modifications to mounts or wiring.
• Consistent operation with vehicle electronics – proper cooperation with comfort modules, central locking, and safety systems.
• Stable door locking – proper holding of the door panel reduces vibrations and unwanted noises while driving.
• Maintenance of factory functionality – preservation of the original closing and opening logic, including from the remote control or from inside the vehicle.

This solution is especially recommended when replacing a damaged lock after a collision, due to operational wear, or when experiencing issues with the central locking on the driver's side.

Component condition and service application

The offered door lock comes from the Doors and door panels group and is a used component, making it an attractive cost-effective alternative to new parts while maintaining the factory design. It works well both in post-accident repairs and in standard service work when the existing lock causes problems with closing, locking, or unlocking the door.

Before installation, it is recommended to perform a standard verification of the door installation (guides, hinges, handles, electrical wiring) to ensure proper cooperation of all components within the left front door panel.

Complementary Mercedes body components

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 panels, reinforcements, or complete doors, check the available parts in the Mercedes Doors and door panels category.

For users interested in a broader context of technical solutions used in vehicles of this brand, including the evolution of body construction and service components, the article Evolution of the Mercedes S-Class: from W140 to W222 – innovations, model differences, and Mercedes auto parts over the years may be helpful, as it organizes knowledge about the changes introduced by the manufacturer across successive generations.