Mini Cooper F57 Convertible Rear Window Lifter Mech Regulator Motor Left N/S

Mini Cooper F57 Convertible Rear Window Lifter Mech Regulator Motor Left N/S is an original component from the Window regulators and motors group, designed for precise operation in the rear left door of a Mini convertible. It ensures stable window guidance, proper closing, and smooth movement throughout the entire range, which translates into user comfort and proper cabin sealing.

Specifications and technical data

• SKU: 7445281
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 7445281
• Substitutable numbers: 51337445281, 7445281
• Location on the vehicle: Rear, Left
• Category: Window Motors & Regulators

Purpose and function of the window regulator

The presented window regulator is dedicated for installation in the rear left door of the vehicle, in the area responsible for guiding and positioning the side window. Its task is to:

• controlled raising and lowering of the window in response to a signal from the switch,
• maintaining the window in a stable position when the door is closed,
• cooperation with the factory Mini electrical system, without the need for installation modifications.

Thanks to a design consistent with the manufacturer's solutions, the regulator maintains the correct window operating geometry, which reduces the risk of jamming, excessive play, or leaks around the seals.

Benefits of using an original Mini component

Choosing a window regulator dedicated to Mini allows you to maintain consistency with the factory body and door mechanism design. In practice, this means:

• secure fit to the door structure – mounting holes and attachment points correspond to the original solutions,
• proper cooperation with the existing control motor (if provided in the given configuration),
• maintaining the window operating characteristics intended by the manufacturer, including speed and smoothness of movement.

Such a solution is particularly important in a convertible, where proper window closing affects acoustic comfort and protection of the interior against external factors.

Installation and operational characteristics

The regulator is intended for installation in the rear part of the body on the driver's side (left side of the vehicle looking in the direction of travel). The design of the element allows for installation in place of the factory mechanism, using the original mounting points in the door.

With proper installation, you achieve:

• restoration of the original window guidance geometry,
• reduction of unwanted vibrations and play in the mechanism,
• consistency with the factory overload protection of the window control system (if present in the specific vehicle configuration).

The element comes from the Window regulators and motors group, which means it has been designed to work in an environment with variable mechanical and thermal loads, typical for the door space.

Product condition and service application

The regulator is a used component, which makes it an attractive service solution in the event of a factory mechanism failure or the need to replace a worn-out subassembly. It works well both for typical single-door repairs and for broader renovation work within the side body area.

Selecting the right element is facilitated by identification via the manufacturer's part number and interchangeable numbers, allowing for precise verification of compatibility with a specific version of the Mini Cooper F57 Convertible.

If you are planning a comprehensive repair or upgrade of the side window area in your Mini and need other elements from the same group, such as guides, lifting mechanisms, or electric drives, check the available parts in the Mini Window regulators and motors category.

Technical support and service knowledge

When selecting elements for body and window systems, it is worth using reliable sources of knowledge about typical faults and methods of their diagnosis. For users of BMW/Mini group vehicles, material describing characteristic engine problems and their impact on the service budget may be helpful – more information can be found in the article Emergency BMW E90 engines: check what can ruin your budget!.