BMW F40 Drive Window Lifter Mechanism Door Rear Left N/S 7465243

BMW F40 Drive Window Lifter Mechanism Door Rear Left N/S is an original component from the Doors and door panels group, designed to control the window in the rear left door. The used motor ensures factory-fit compatibility with the electrical installation and the lifter mechanism, facilitating efficient replacement without the need for modifications.

Specifications and technical data

• SKU: 7465243-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7465243
• Substitutable numbers: 7465243, 51337465243, 9853147
• Location on the vehicle: Rear, Left
• Category: Doors & Door Skins

Purpose and vehicle placement

The presented motor is dedicated for installation in the rear left section of the body, within the passenger door. It is responsible for driving the mechanism that raises and lowers the window, working in conjunction with the factory electrical controls in the BMW F40 series. Thanks to its precise fit for the specific mounting location, it eliminates the risk of issues with guide geometry or window positioning.

Construction and function of the window lifter motor

The window lifter motor in this BMW model operates as an electric drive integrated with the door mechanism. Its task is to smoothly transfer torque to the lifter system so that the window moves stably, without jerking, and maintains proper pressure in the closed position. The design provided by the manufacturer ensures:

• compatibility with factory wiring and connectors in the door,
• appropriate operating characteristics under the load of the window,
• cooperation with the comfort opening and closing control system.

As a result, replacing the component with an original motor from the same series allows for maintaining the predictable operation of the entire door system.

Benefits of using an original BMW component

Using a used, original motor in a BMW F40 is a solution that combines cost control with maintaining the parameters specified by the manufacturer. Key advantages include:

• factory fit to the door structure and lifter mechanism,
• no need for electrical installation adaptation,
• maintenance of proper cooperation with comfort control modules.

In practice, this means shorter installation time, lower risk of secondary faults, and consistent operation with other elements from the Doors and door panels group.

Part selection by numbers and parameters

To ensure full compatibility with a specific equipment version, it is worth comparing the OEM part number and available interchangeable numbers with the data in your vehicle before purchasing. The product has assigned identifiers in the warehouse system (SKU), manufacturer numbers, and replacement references, which facilitates precise verification of compatibility with a given door and electrical installation configuration.

Application in repairs and upgrades of the door zone

The rear left door window lifter motor is often replaced when symptoms such as slowed window operation, stopping halfway, or a complete lack of response to control buttons occur. Replacing it with a functional component restores proper door functionality, which is important for both user comfort and cabin sealing. If you are planning a comprehensive repair or upgrade of the door zone in your BMW and need other elements from the same group, such as skins, reinforcements, or structural elements, check the available parts in the BMW Doors and door panels category.

Technical support and cost optimization

When planning repairs of window systems and other body components, it is worth analyzing the cost-to-durability ratio and the availability of used parts. In the case of related brands, such as Volkswagen, different generations of engines and technical solutions affect the cost-effectiveness of repairs and the selection of components from the secondary market. If you want to better understand how to optimize service expenses using used components, check out the article Volkswagen 1.9 TDI vs 1.4 TSI – evolution of VW engines and repair costs, which shows a practical approach to selecting parts based on experience with popular power units.