Door Lock Mercedes W204 W212 Rear Right O/S Latch Catch Actuator A0997300635

Door Lock Mercedes W204 W212 Rear Right O/S Latch Catch Actuator is an original component from the Locks and Latches group, designed for installation on the rear right side of the vehicle body. This complete latch and actuator mechanism ensures secure door closing, proper cooperation with the central locking system, and stable positioning of the door panel relative to the body.

Specifications and technical data

• SKU: A0997300635-2
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0997300635
• Substitutable numbers: A0997300635, A 099 730 06 35, KD
• Location on the vehicle: Rear, Right
• Category: Exterior Locks & Lock Hardware

Purpose and function of the lock

The presented Door Lock Mercedes W204 W212 Rear Right O/S Latch Catch Actuator has been designed specifically for Mercedes C-Class W204 and E-Class W212 models, for placement in the rear – right side zone. It is responsible for the mechanical locking of the door, cooperation with the central locking actuator, and the correct operation of the interior and exterior handles.

This element plays a key role in maintaining the tightness and safety of the passenger cabin, minimizing door play, and ensuring repeatable, precise closing. A properly functioning lock also reduces unwanted noise from the door area and supports the correct operation of sensors associated with comfort systems.

Construction and performance parameters

The lock combines a mechanical locking module with an electric actuator assembly, creating a compact system designed for installation inside the door panel. The design is intended to work with factory wiring and standard mounts in Mercedes doors, which facilitates installation and reduces the need for modifications.

This solution ensures:

• stable locking of the door panel in the closed position,
• correct response to signals from the central locking system,
• consistent operation with factory handles and linkages,
• maintenance of proper closing geometry on the rear right side of the vehicle.

Benefits of using an original lock

Using an original door lock in a Mercedes W204 / W212 allows you to maintain the factory performance parameters of the locking system. Precise fit to the door structure translates into no installation problems, proper alignment with the door sheet metal, and predictable operation over a long period of use.

The main advantages include:

• compatibility with the factory central locking system and electrical installation,
• preservation of the original operating characteristics of handles and linkages,
• reduction of the risk of leaks and rattles resulting from improper closing,
• the ability to restore proper door operation after a failure of the previous lock.

Condition and service application

The offered lock is an aftermarket part, which makes it an attractive service solution for users looking for a technically sound component at a reasonable price. It works well both for typical replacement of a worn-out mechanism and for post-accident repairs when it is necessary to restore full functionality of the rear right door.

Thanks to maintaining the original manufacturer's specification, the lock can be used as a direct replacement for the factory-installed element, without the need for software adaptation or structural modifications within the door.

Related elements and further reading

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

For drivers interested in a broader context of selecting premium segment components, including the differences between standard and sports lines, the article describing the characteristics of M and M Performance components may be helpful – more information can be found in the material BMW M Performance: what is the difference between BMW M components and standard ones?.