BMW E46 Front Door Window Lifter Electric Regulator Motor Left N/S 8229105

BMW E46 Front Door Window Lifter Electric Regulator Motor Left N/S is an original window opening and closing system component, equipped with an integrated motor. It ensures stable operation of the mechanism in the driver's door, guaranteeing smooth raising and lowering of the window using factory switches. This is a practical solution for users who want to restore full door functionality without interfering with the body structure.

Specifications and technical data

• SKU: 8229105-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8229105
• Substitutable numbers: 8229105, 51338229105, 8204179, 51338204179, 6935927
• Location on the vehicle: Front, Left
• Category: Lift Supports, Latches, Hinges & Additional Parts

Purpose and function in the vehicle

The presented lifter is designed for installation in the front left door of the BMW E46, i.e., on the driver's side in left-hand drive versions. The component is responsible for transferring drive from the electric motor to the window guides, which enables convenient control of its position from inside the vehicle. The design has been engineered to work with the factory electrical installation and original door switches.

By maintaining geometry consistent with the factory design, the mechanism ensures proper window guidance in the tracks, reducing the risk of misalignment, excessive play, or unwanted noises during operation.

Construction and technical features

The lifter is a complete assembly with an electric regulator and motor, which facilitates installation and diagnostics. Using the original BMW design means:

• proper fitment to factory mounting points in the door,
• compatibility with the standard electrical wiring harness,
• maintaining the correct vertical range of window movement.

The item belongs to the Gas springs, locks, hinges and other parts group, i.e., components responsible for the mechanical and electrical functions of opening, closing, and positioning moving body elements. These types of parts have a significant impact on vehicle comfort and daily ergonomics.

Condition, fitment, and service application

The lifter is offered as a used part, which allows for an economical repair of the window system while maintaining the manufacturer's original specifications. This solution is particularly beneficial in the event of a mechanism failure, seized guides, or motor damage in an existing lifter.

Due to its factory origin, the component is suitable for users expecting:

• preservation of original window control functionality,
• no need for electrical installation modifications,
• consistency with other door components.

The placement on the vehicle as front – left side clearly defines its application, which minimizes the risk of error when selecting parts during repair.

Support in part selection and additional information

In case of doubts regarding the selection of the correct lifter for a specific body version or model year, it is worth paying attention to the manufacturer's markings and compatibility with factory door equipment. Proper fitment translates into correct window operation, reduced mechanical stress, and a longer service life for the entire system.

If you are planning a comprehensive repair or upgrade of the door and tailgate area in your BMW and need other items from the same group, such as lock mechanisms, hinges, or actuators, check the available parts in the Gas springs, locks, hinges and other BMW parts category.

If you are considering the choice between new and used door and window system components, a practical comparison of costs and durability can be found in the article Car parts – new or used? We compare costs, quality, and durability, which will help you consciously plan your car's repair.