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

The Mercedes W177 W247 Rear Right Door Lock Mechanism is an original part from the Locks and Latches group, designed for the rear right side of the body. It ensures precise door operation, correct latching, and compatibility with the vehicle's factory safety systems. This is a solution for users who expect stable performance and proper fit with the door structure.

Specifications and technical data

• SKU: A0997303201-1
• 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

Purpose and Function of the Lock Mechanism

The presented lock mechanism is dedicated for installation in the rear right part of the body, in the passenger door area. It is responsible for:

• mechanical locking and unlocking of the door from the body side,
• cooperation with the external and internal door handles,
• proper closing of the door leaf against the frame,
• maintaining a stable door position while driving.

Thanks to its construction compliant with Mercedes factory standards, the lock maintains the correct operating geometry, which reduces the risk of play, creaks, and closing issues.

Construction and Body Fitment

The mechanism has been designed specifically for the W177 and W247 platforms, taking into account the shape of the doors, guides, and mounting points. This means:

• dedicated placement of mounting holes,
• compatibility with factory rods and handle rods,
• maintaining the correct position relative to the pillar and seals,
• consistency with the factory concept for securing the rear passenger area.

Such a fit facilitates installation and allows for the preservation of the door's original functional properties, without the need for modifications or adaptations.

Condition, Verification, and Benefits of Use

The part comes from the secondary market, allowing for an attractive price while maintaining original construction. This type of mechanism is particularly beneficial when:

• the existing lock causes problems with closing or locking the door,
• there are irregularities in the latching operation of the rear right side,
• replacement is necessary after mechanical damage to the door.

Using an original lock from this group helps maintain consistency with the factory security system and preserves the comfort of door operation in daily use. This is especially important in vehicles where the rear right side is frequently used by passengers.

Installation Area and Technical Aspects

Placement on the vehicle in the rear right part of the body requires proper component selection. This mechanism is configured to operate precisely in this area, which translates to:

• correct cooperation with the rear door geometry,
• appropriate guidance of the latch relative to the striker on the body,
• stable performance with repeated opening and closing.

Thanks to this, the user receives a part that supports the maintenance of the door's factory operating parameters, without compromising on fit.

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

Additional Information and Support for Selection

When selecting a lock mechanism for a specific body version, it is worth paying attention to compatibility with the vehicle platform and its placement on the vehicle. A correctly chosen part reduces installation time and minimizes the risk of operational problems in the rear right door area.

If you want to better understand how to effectively choose used body and locking system components for popular models, our guide may be helpful: Best Used Car Parts – A Guide to the Most Frequently Chosen Original Parts.