BMW 4 Series F33 F83 M4 Convertible Window Lifter Motor Rear Left N/S 7352749

BMW 4 Series F33 F83 M4 Convertible Window Lifter Motor Rear Left N/S is an original component from the Window regulators and motors group, designed for precise operation of the window in the rear left door. It ensures stable window guidance, proper lifting force, and consistent performance under daily operating conditions. This is a practical solution for users who want to restore full functionality to the side window without compromising on the fitment to the BMW bodywork.

Specifications and technical data

• SKU: 7352749
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7352749
• Substitutable numbers: 51357352749, 7352749, 7363837
• Location on the vehicle: Rear, Left
• Category: Window Motors & Regulators

Purpose and function in the vehicle

The presented mechanism is designed to operate in the rear left door area, where it is responsible for the controlled raising and lowering of the window. The applied design combines the motor with a guide system, which allows for smooth vertical window movement and reduces the risk of misalignment. As a result, the system maintains door seal integrity, and the window operates in a predictable manner, whether controlled from the driver's panel or the passenger door button.

Construction and technical characteristics

The mechanism combines the drive unit with components responsible for transferring motion to the window. The geometry of the mounts is matched to the BMW door architecture, which facilitates installation in the factory mounting points. The system has been developed to:

• ensure stable window guidance throughout the entire range of motion,
• maintain appropriate clamping force in the closed position,
• reduce noise and vibrations transmitted to the door panel.

Such a solution helps maintain acoustic comfort inside the vehicle and improves the ergonomics of daily use.

Benefits of using an original mechanism

Using a component from the same design group as the factory BMW equipment allows for maintaining the consistency of the entire window system. Original geometry and mounting spacing minimize the risk of issues with closing, leaks, or excessive load on the electrical system. This is particularly important in vehicles where the window control system is integrated with other comfort modules.

The mechanism is suitable both for typical repairs after a failure and for replacing a worn-out component. Precise fitment for the rear left side reduces installation time and simplifies service work, which is beneficial for both workshops and individual users.

Condition and practical application

The item comes from a used vehicle, which allows for its attractive use in economic repairs while maintaining proper fitment to the BMW bodywork. This type of solution is often chosen by users who want to restore full window functionality at reasonable service costs. The mechanism is suitable for use as a replacement for a damaged system in the rear left door, without the need for any modifications to the door structure.

BMW Window regulators and motors – selection and system expansion

If you are planning a comprehensive repair or upgrade of the door area in your BMW and need other elements from the same group, such as window drives, guides, or complete lifter modules, check out the available parts in the BMW Window regulators and motors category.

Choosing used components and repair economics

Choosing a used window lifter mechanism is often part of a broader service strategy that combines new and used components to optimize costs while maintaining appropriate quality. In the case of more complex drivetrain repairs or vehicle upgrades, it is worth learning the principles of selecting used components according to manufacturer markings and workshop procedures – this is discussed in more detail in the article Why it is worth buying used gearboxes and engines – facts instead of myths, which organizes the most important technical and economic issues.