BMW F40 Drive Window Lifter Mechanism Door Rear Right O/S 9853148 CMOA0780K

BMW F40 Drive Window Lifter Mechanism Door Rear Right O/S is an original component from the Doors and door panels group, designed for the rear right side of the vehicle body. It ensures stable window operation, correct guidance within the rails, and consistent lifting and lowering movement, which translates into comfort when operating the passenger door.

Specifications and technical data

• SKU: 9853148
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9853148
• Substitutable numbers: CMOA0780K, 9853148, 61359853148, 61 35 5A02D64
• Location on the vehicle: Rear, Right
• Category: Doors & Door Skins

Purpose and function of the mechanism

The window lifter mechanism in the BMW F40 model is responsible for the precise movement of the window in the rear right door. This component works with the vehicle's electric control system, transferring power to the window and keeping it in a stable position throughout its entire range of operation. Thanks to its appropriate geometry and fitment to the door structure, the lifter minimizes stress on the glass and reduces the risk of jamming.

As a part from the Doors and door panels group, the mechanism is an essential component of the entire door module – it affects ease of use, sealing, and proper closing of the window into the weatherstrips.

Construction and fitment for the BMW F40

The presented mechanism has been designed specifically for the BMW F40 body architecture, taking into account the shape of the rear doors and window guides. The appropriate placement of mounting points allows for installation in factory locations without the need for modifications, which facilitates service work and shortens replacement time.

The system of guides and lifter arms ensures smooth window movement throughout the entire range, and the design adapted to the rear right side of the vehicle guarantees proper alignment with other door components. As a result, the original ergonomics and proper interaction with seals and upholstery are maintained after installation.

Characteristics of the used component

The offered mechanism comes from the secondary market, which means it is a used part, verified for installation suitability. This type of solution allows for reducing repair costs while maintaining the original design intended by the vehicle manufacturer. For many users, this is a reasonable compromise between quality and service budget.

Choosing a used window lifter for the BMW F40 is particularly beneficial in situations where only the mechanism has been damaged, while other door components remain in good technical condition. This allows for restoring full window functionality without the need to interfere with other sub-assemblies.

Benefits of using an original mechanism

Using an original window lifter mechanism in the BMW F40 translates into several significant advantages:

• maintaining factory fitment to the door structure on the rear right side,
• proper cooperation with the existing window control system,
• stable window guidance and reduction of noise while driving,
• easier installation thanks to the mounting points provided by the manufacturer.

Thanks to this, the mechanism is a suitable choice both for standard repairs and for restoring full door functionality after a collision or window lifting system failure.

Expanding repairs within the BMW door area

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 hinges, reinforcements, or panels, check out the available parts in the BMW Doors and door panels category.

When planning broader service work on the vehicle, it is also worth paying attention to other key powertrain components. In making a decision on when it is worth reaching for elements from the secondary market and when to consider regeneration, the following article may be helpful: Used gearbox – when is it worth it and what you need to remember.