Mercedes CLA C117 Door Lock Front Right O/S Latch Catch Mechanism A0997202401

Mercedes CLA C117 Door Lock Front Right O/S Latch Catch Mechanism is an original locking mechanism designed for installation on the passenger side. This component from the Locks and Latches group is responsible for precise locking, unlocking, and secure fastening of the door, ensuring proper integration with the factory locking system in your Mercedes.

Specifications and technical data

• SKU: RHD-A0997202401-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0997202401
• Substitutable numbers: A0997202401, A 099 720 24 01
• Location on the vehicle: Front, Right
• Category: Exterior Locks & Lock Hardware

Purpose and function in the vehicle

The presented lock mechanism is dedicated to the front right door of the Mercedes CLA C117 generation model. It is responsible for the correct latching of the door, interaction with the exterior and interior handles, and the factory central locking system. Thanks to its precise fit for the specific vehicle location, it maintains the correct geometry of the rods and levers, which translates into stable operation during daily use.

Construction and technical features

The Mercedes CLA C117 front right door lock mechanism is based on a compact modular design, combining the mechanical part with elements responsible for integration with the vehicle's electrical system. The use of a factory Mercedes solution helps maintain proper mounting rigidity within the door panel and correct alignment of the latch relative to the body pillar.

The component has been designed to:

• ensure repeatable locking and unlocking of the door with every cycle,
• maintain a stable position of the door relative to the body while driving,
• reduce play and unwanted vibrations in the closing area,
• work with factory rods and handles without the need for modifications.

Benefits of using an original lock

Using an original front right door lock in a Mercedes CLA C117 allows you to maintain the structural integrity of the entire door system. Factory fitment minimizes the risk of issues with closing, improper latching, or excessive noise while driving. A used component from this group is a good choice if your existing lock has suffered mechanical wear or damage due to usage.

Replacing it with an original mechanism from the Locks and Latches group also reduces installation time – the mounting points, geometry, and interaction with other door components remain consistent with the factory solution, which is important for both workshops and users servicing the vehicle themselves.

Selection, installation, and use

Before installation, it is recommended to compare the design of the new lock with the element currently installed in the vehicle, especially regarding the shape of the housing, the position of the levers, and the mounting sockets for the rods. A correctly selected mechanism for the front right door in a Mercedes CLA C117 should work with the existing wiring and door equipment without the need for structural interference.

During installation, it is worth paying attention to:

• correct alignment of the lock relative to the body pillar,
• proper routing of rods and cables inside the door,
• checking the operation of the handles after reassembling the door trim,
• verifying the smoothness of the latching mechanism by opening and closing the door several times.

Further upgrades within door locks

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

To better take care of the overall condition of your vehicle, including the stable operation of components in high temperatures, it is also worth checking out our guide on the cooling system – you can find practical tips in the article Summer heat vs. cooling system: used radiators and fans as a guarantee of savings.