Mercedes W212 W204 Door Lock Rear Right Mechanism Actuator A0997300635

Mercedes W212 W204 Door Lock Rear Right Mechanism Actuator is an original part from the Locks and latches category, designed for the rear right side of the vehicle body. It ensures the proper operation of the door locking system, stable door closing, and correct integration with the factory central locking system in Mercedes vehicles.

Specifications and technical data

• SKU: A0997300635
• 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 door lock mechanism

The presented mechanism is responsible for secure locking and unlocking of the rear right door in Mercedes W212 and W204 class cars. The component works with the factory central locking system, allowing for smooth opening and closing of the door both via the remote control and the buttons inside the cabin. A properly functioning lock eliminates issues with doors not closing, opening on their own, or failing to respond to signals from the electrical system.

Construction and body fitment

The mechanism has been specifically designed for installation in the rear right door, taking into account the geometry of the door panel, guides, and factory mounting points in the Mercedes W212 and W204. This ensures the correct positioning of the lock tongue relative to the body pillar, which translates into stable door closure, no play, and a reduction in unwanted noise while driving.

The construction of the mechanism is prepared to work with the original door handle, linkages, and the vehicle's electrical wiring, which facilitates installation and allows for maintaining the factory functionality of the locking system.

Benefits of using an original lock

Using an original lock mechanism to replace a worn or damaged part allows you to restore proper door operation without interfering with the body structure. Key advantages include:

• factory fitment for the rear right side of the vehicle,
• compatibility with the Mercedes central locking system and electrical installation,
• stable door locking and correct closing of the door leaf,
• reduction of rattling and play resulting from the improper operation of an old lock.

This makes the mechanism a practical solution for repairs after a collision, after intensive use, or in the event of problems with opening and closing the doors.

Condition, verification, and service application

The item comes from a Mercedes vehicle and is offered as a used service component. This type of part is a good choice for repairs where maintaining the original lock design and compatibility with factory door equipment is important. Before installation, it is recommended to perform a standard check of the electrical system, door alignment, and striker adjustment on the pillar to fully utilize the capabilities of the mechanism.

Expanding the locking system in a Mercedes

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

For users interested in deepening their knowledge about part selection, OEM compatibility, and installation procedures in modern power units and accessory systems, the Global Parts service guide may be helpful – BMW B58 code, or 340 HP from the secondary market – a checklist before buying a turbocharger and intercooler for the BMW 3 Series (G20). Although it concerns a different brand, it well illustrates the approach to verifying part numbers, VIN-based fitment, and safe component installation.