Mercedes CLA X118 Door Lock Lock Mechanism Linkage Rear Right O/S A0997303701

Mercedes CLA X118 Door Lock Lock Mechanism Linkage Rear Right O/S is an original locking mechanism designed for installation in the rear right section of the vehicle body. This component is responsible for secure closing, locking, and unlocking of the door, working in conjunction with the factory vehicle locking system. This used component from the Locks and Latches group allows for a technical, factory-compliant replacement of a damaged mechanism without interfering with the door structure.

Specifications and technical data

• SKU: A0997303701-2
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0997303701
• Substitutable numbers: A0997303701, A 099 730 37 01
• Location on the vehicle: Rear, Right
• Category: Exterior Locks & Lock Hardware

Purpose and function in the vehicle

The presented lock is dedicated to the rear right side of the Mercedes CLA X118 model. As a component responsible for locking, it works with the handle, linkages, and control system, ensuring:

• stable retention of the door in the closed position while driving,
• proper cooperation with the central locking system,
• controlled opening and closing from both the inside and outside,
• mechanical security of the rear right passenger zone.

Thanks to the factory fitment to the door structure, installation is predictable, with no need for modifications to mounts or housings.

Construction and technical fitment

The rear right door lock mechanism in the Mercedes CLA X118 is designed as a component that works with the original door skin, guides, and the vehicle's electrical harness. The construction includes a set of moving levers and latches that transfer movement from the handle and linkages to the locking of the lock tongue.

Key advantages of this solution include:

• factory mounting points matched to the rear right door,
• compatibility with the original lock control system,
• preservation of the mechanism's operating geometry as intended by the manufacturer,
• possibility of using existing associated components (handle, linkages, upholstery).

Benefits of using an original lock

Using an original rear right door lock in the Mercedes CLA X118 allows for maintaining the technical consistency of the entire locking system. Compared to replacements, such a component ensures:

• compliance with factory tolerances and door operating characteristics,
• proper cooperation with vehicle electronics (if the lock system is integrated with it),
• lower risk of problems with closing, play, or noise while driving,
• easier diagnostics in case of any future faults.

The used component allows for an economical repair while maintaining the original technical specification, which is particularly important in the case of precise locking mechanisms.

Condition, verification, and service application

The offered lock comes from dismantling and is classified as a used Mercedes brand component. This type of part is suitable both for standard replacement of a damaged lock and for post-accident repairs when it is necessary to restore the full functionality of the rear right door.

Before installation, it is recommended to:

• verify compatibility with the specific vehicle equipment version,
• check the mechanical operation before finally closing the door upholstery,
• control the cooperation with the central locking and door lock on the rear passenger side.

Expanding the locking system in the Mercedes CLA X118

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

For users who are simultaneously servicing other vehicle systems, educational materials regarding diagnostics and selecting components by catalog numbers may also be useful – a detailed discussion can be found in the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, where practical rules for working with OEM numbers and service procedures are described.