Window Lifter BMW F12 Front Left N/S Regulator Mechanism With Motor 7223651

Window Lifter BMW F12 Front Left N/S Regulator Mechanism With Motor is a factory-original window lifting component, designed specifically for the front left door of the BMW F12 series. Thanks to its integrated electric motor, it ensures precise, stable, and repeatable window operation, which translates into ease of use and proper door closing. This solution is dedicated to drivers who expect compliance with the original manufacturer's specifications and wish to maintain the integrity of the entire electric window system.

Specifications and technical data

• SKU: 7223651
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7223651
• Substitutable numbers: 7223651, 51337223651, 7304521, 67627304521
• Location on the vehicle: Front, Left
• Category: Window Motors & Regulators

Purpose and fitment for BMW F12

Window Lifter BMW F12 Front Left N/S Regulator Mechanism With Motor is structurally prepared for operation in the front left body section. This means proper window guidance in the rails, correct mounting points, and compatibility with the factory BMW electrical installation. Using an original solution from the Window Regulators and Motors group allows for maintaining the correct window operating geometry, reducing stress in the mechanism, and minimizing the risk of jamming.

The component is designed for installation in the door without the need for body or wiring harness modifications, which facilitates workshop work and shortens repair time. Thanks to this, the mechanism is suitable both for a typical replacement of a damaged lifter and for comprehensive door restoration after a collision.

Construction and function of the mechanism with motor

The lifter combines the mechanical part and the electric drive into one unit, which ensures consistent operation of the entire system. The mechanism is responsible for:

• stable vertical window guidance throughout the full opening and closing range,
• transferring torque from the motor to the lifter's working components,
• cooperation with factory comfort controllers and door switches.

The electric motor is integrated with the regulator, making the system a compact, well-fitted unit. This solution reduces play, improves operating smoothness, and facilitates diagnostics – in the event of a failure, the complete assembly is replaced rather than individual components.

Benefits of using an original mechanism

Using a dedicated lifter in the BMW F12 brings a number of practical operational benefits:

• Proper fit to the door – maintaining factory mounting points and window operating geometry.
• Compatibility with vehicle electronics – correct cooperation with control modules and comfort functions.
• Reduced risk of noise and vibration during window operation due to the perfect fit to the door structure.
• The ability to restore full window functionality after mechanical or electrical damage to the previous lifter.

The product comes from the Window Regulators and Motors group, which means it has been designed for long-term operation in variable conditions – during frequent window raising and lowering, temperature changes, and exposure to moisture inside the door.

Characteristics of the used product

The offered item is a used part, which in practice means a favorable cost-to-functionality ratio while maintaining the original BMW design. This type of solution is particularly attractive for repairs of several-year-old vehicles, where both technical compliance and rational service costs are important. A used lifter allows for restoring the window system's efficiency without the need to invest in a new component from the same group.

BMW Window Regulators and Motors – expansion and modernization

If you are planning a comprehensive repair or modernization of the door area in your BMW and need other elements from the same group, such as additional window mechanisms, drives, or complete assemblies with motors, check out the available parts in the BMW Window Regulators and Motors category.

Part selection by OEM numbers and practical tips

When selecting a window lifter for the BMW F12, it is crucial to pay attention to compliance with the manufacturer's markings and the vehicle location (front, left side). In workshop practice, OEM numbers and interchangeable numbers are often used to precisely match the mechanism to a specific door configuration and equipment. In case of doubt, it is worth comparing the markings with the removed part or using the manufacturer's catalogs.

Additional information on the principles of selecting components by OEM numbers and the economics of using used parts can be found in the expert guide Why it is worth buying used gearboxes and engines – facts instead of myths, which discusses, among other things, practical procedures for part identification and approaches to optimizing repair costs.