Mercedes-Benz Vito W639 Front Right Door Lock Mechanism Actuator A6397200735

Mercedes-Benz Vito W639 Front Right Door Lock Mechanism Actuator is a factory-original locking mechanism with a built-in actuator, designed for precise operation of the central locking system in the front right passenger door. This component from the Locks and Latches category ensures proper closing, locking, and unlocking of the door, restoring full functionality to your Vito's locking system. Thanks to the use of the original mechanical-electrical design, compatibility with the vehicle's wiring and correct interaction with the body electronics are maintained.

Specifications and technical data

• SKU: rhd-A6397200735
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6397200735
• Substitutable numbers: A6397200735, A 639 720 07 35, EM
• Location on the vehicle: Front, Right
• Category: Exterior Locks & Lock Hardware

Purpose and function in the door system

The presented lock mechanism is dedicated to the front right door of the Mercedes-Benz Vito W639 generation. It is responsible for:

• mechanical locking and unlocking of the door leaf,
• interaction with the central locking system and remote control operation,
• transmitting status signals regarding the locking state to the body control modules,
• proper cooperation with the external and internal door handles.

Thanks to the integrated actuator, the lock responds to signals from the vehicle's electrical system, allowing for smooth and repeatable operation of the locking system without the need for additional modifications.

Construction and technical advantages

The Mercedes-Benz Vito W639 Front Right Door Lock Mechanism Actuator is based on a compact design combining mechanical and electrical parts. Inside the housing, there are gears, levers, and an actuator responsible for the bolt movement. This solution ensures:

• stable bolt guidance and repeatable door closing,
• proper cooperation with factory rods and handles,
• preservation of the original central locking operating characteristics,
• easier diagnostics in case of potential installation faults.

The original design used by Mercedes-Benz allows for consistency with other components of the locking system, which is particularly important when operating a commercial vehicle like the Vito.

Condition, origin, and installation

The item comes from disassembly and is offered as a used part, which provides a reasonable compromise between repair costs and maintaining the manufacturer's original specifications. The mechanism is designed for installation in place of the factory lock, using existing mounting points and factory electrical connectors.

When replacing, it is recommended to:

• check the condition of the door wiring harness and plugs,
• inspect the adjustment of the door handle rods,
• verify the operation of the central locking after installation,
• perform a functional test using the remote control and internal buttons.

Thanks to the preservation of the original geometry and mounting points, the installation proceeds in a manner similar to the manufacturer's service procedure, without the need for bodywork adaptation.

Why choose an original Mercedes door lock

Choosing an original lock mechanism for the Vito W639 allows you to maintain the consistency of the locking system with the factory design assumptions. This solution is especially recommended for vehicles in intensive use, where repeatable operation and correct interaction with comfort electronics are essential. Using a lock from the same design family minimizes the risk of closing problems, comfort system errors, or improper central locking operation.

If you are considering whether a refurbished part or a used original is a better choice, comparing both solutions in practice may be helpful – more information can be found in the article Refurbished or used original – which part to choose for repairs?.

Expanding the locking system in the Mercedes Vito

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