Mercedes-Benz Vito W639 Rear Left N/S Door Lock Mechanism Actuator A6397300435

Mercedes-Benz Vito W639 Rear Left N/S Door Lock Mechanism Actuator is a precisely engineered locking mechanism component designed for the rear left side of the vehicle body. It is responsible for the secure locking of the door panel, stable closing, and safely maintaining the door in a closed position. Thanks to a design that meets Mercedes factory standards, the lock ensures proper integration with other door components.

Specifications and technical data

• SKU: A6397300435
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6397300435
• Substitutable numbers: A6397300435, A 639 730 04 35, EM
• Location on the vehicle: Rear, Left
• Category: Doors & Door Skins

Purpose and function of the rear left door lock

The presented lock is dedicated to the rear left section of the vehicle body, where it is responsible for the mechanical locking of the door and proper interaction with the handle and control linkages. Its placement on the vehicle in the rear section on the driver's side allows for maintaining the factory door operating geometry, which translates into daily operational comfort and the reduction of play and unwanted noises while driving.

This element is part of the Doors and door panels group, so its proper operation has a direct impact on the tightness, safety, and ergonomics of the rear cargo or passenger area in the Mercedes Vito W639.

Construction and body compatibility

The lock has been designed to work with the factory door skin, hinges, and guides, which facilitates installation in place of the original component. Properly selected mounting points and latch geometry allow for maintaining the correct door line relative to the body, and thus for even pressure on the seals and reduction of noise penetration from the outside.

Thanks to the use of solutions consistent with the manufacturer's design, the lock works with existing linkages and control mechanisms in the door, which allows for maintaining the original functionality without the need for installation modifications.

Benefits of using an original Mercedes lock

Choosing a rear left door lock dedicated to the Mercedes Vito W639 allows for maintaining the structural integrity of the entire door system. Key advantages include:

• maintaining the factory method of locking and unlocking the door,
• proper fit to the door skin and panels,
• stable operation of the mechanism under typical operating conditions,
• reducing the risk of the door not closing properly or opening spontaneously while driving.

As a result, the lock is a practical solution for post-accident repairs, replacing worn-out components, or restoring full functionality to the rear body area.

Used condition and operational aspects

The offered lock comes from the used parts segment, which allows for an economical restoration of the door mechanism's efficiency while maintaining a design consistent with the original. Such components are frequently chosen for maintenance repairs when the priority is reasonable cost and compatibility with the existing door structure.

If you are considering a choice between new and used parts and want to better understand the differences in costs, durability, and availability, it is worth checking out the guide: Car parts – new or used? We compare costs, quality, and durability. This is a practical source of knowledge when planning repairs for your vehicle.

Expanding repairs within the Mercedes door area

If you are planning a comprehensive repair or upgrade of the door area in your Mercedes and need other elements from the same group, such as skins, reinforcements, or additional mounting components, check out the available parts in the Mercedes Doors and door panels category.