Mercedes W177 W247 H243 Rear Door Lock Mechanism Actuator Right O/S A0997303201

The Mercedes W177 W247 H243 Rear Right Door Lock is an original part from the Locks and Latches group, designed for the rear right body area. It ensures the proper functioning of the door locking and unlocking mechanism, stable latching, and correct integration with the vehicle's factory systems. This is a solution for users expecting precise fitment and preservation of factory safety parameters.

Specifications and technical data

• SKU: A0997303201-2
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0997303201
• Substitutable numbers: A0997303201, A 099 730 32 01
• Location on the vehicle: Rear, Right
• Category: Exterior Locks & Lock Hardware

Lock Purpose and Function

The presented lock is dedicated to the rear right side of the body in Mercedes vehicles of the W177, W247, and H243 series. It is responsible for the mechanical latching of the door leaf, cooperation with the door handle, and transmission of movement to other components of the locking system. A correctly selected lock eliminates problems with doors not closing properly, accidental opening, and incorrect operation of the locking mechanism.

Construction and Body Fitment

The component has been designed for the specific geometry of the rear right body section, which translates to proper positioning relative to the pillar and door handle. The lock's construction allows for stable bolt guidance and correct force transfer during door closing and opening. This ensures the cohesive operation of the entire system – from the exterior handle, through the linkages, to the locking mechanism.

Benefits of Using an Original Lock

Using an original door lock in the rear right part of the vehicle allows for the maintenance of factory safety standards and user comfort. Proper fitment to the door structure reduces the risk of play, rattling, or uncertain closing. For the user, this means stable mechanism operation, predictable door behavior in daily use, and no need for additional assembly modifications.

Condition and Service Application

The offered lock is a used part, making it an attractive service solution for post-accident repairs, replacement of a damaged mechanism, or restoring full door functionality. Choosing such a component allows for optimizing repair costs while maintaining compatibility with the vehicle's construction and factory mounting method.

Locking System Expansion and Related Parts

If you are planning a comprehensive repair or modernization of the door area in your Mercedes and need other parts from the same group, such as latching mechanisms, lock cylinders, or additional locking modules, check the available parts in the Mercedes Locks and Latches category.

For users interested in a broader approach to vehicle servicing, including selecting used parts for other systems, a guide on diagnostics and selection of drivetrain components may be helpful – you can find it in the article Clutch and Dual-Mass Flywheel – Diagnostics and Part Selection for the Drivetrain.