Door Lock Mercedes W177 W247 Latch Mechanism Actuator Rear Left N/S A0997303101

The Mercedes W177 W247 Rear Left Door Lock is an original part from the Locks and Latches group, designed for installation in the rear left area of the body. The design, tailored for specific Mercedes models, ensures proper central locking operation, correct door closure, and stable panel guidance during driving.

Specifications and technical data

• SKU: A0997303101
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0997303101
• Substitutable numbers: A0997303101, A 099 730 31 01
• Location on the vehicle: Rear, Left
• Category: Exterior Locks & Lock Hardware

Vehicle Application and Placement

The presented lock is dedicated for installation in the rear left door of Mercedes vehicles from the W177 and W247 series. Its placement in this part of the body means the component is responsible for both the mechanical door lock and its interaction with the central locking system and door position sensors.

Precise fit to the door structure guarantees:

• correct locking when the vehicle is closed,
• proper guidance of the lock bolt relative to the pillar,
• stable holding of the door in the closed position while driving.

Construction and Technical Function

As a component from the Locks and Latches group, the rear left door lock combines locking mechanics with the part responsible for interacting with the vehicle's electrical system. The manufacturer-designed construction allows for integration with the factory comfort system, which translates to correct operation of the remote and interior button opening and closing functions.

This solution allows for:

• maintaining factory central locking operating parameters,
• proper interaction with body control modules,
• maintaining the correct door closing geometry without additional modifications.

Benefits of Using an Original Lock

Using an original rear left door lock for the Mercedes W177 / W247 maintains the structural integrity of the entire locking system. The component has been designed for specific mounting points, ensuring a predictable installation process that does not require bodywork adaptations or interference with the wiring harness.

Key advantages include:

• factory fit to the door and pillar geometry,
• seamless integration with the existing central locking system,
• maintaining the appropriate level of sealing and acoustics within the door area.

Condition and Service Application

The offered lock is a used part, making it an attractive service solution for routine repairs or after mechanical damage to the door. It is particularly useful in situations where the existing lock has failed, causes closure problems, or does not interact correctly with the central locking system.

The correct component selection is facilitated by the OEM designation and available replacement numbers, allowing verification of the part's compatibility with a specific vehicle equipment version.

Assistance with Selection and Additional Information

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

When selecting a rear left door lock, it is particularly important to correctly identify it by manufacturer numbers and body version. To reduce the risk of error and ensure the chosen part is compatible with your car, it is advisable to use the practical tips contained in the guide Online Parts Shopping Without Risk – 5 Proven Ways to Verify Component Compatibility by OEM Numbers and Paint Codes.