BMW X1 E84 Rear Window Electric Regulator Lifter Right O/S 2990298

BMW X1 E84 Rear Window Electric Regulator Lifter Right O/S is a factory-original component of the window lifting system, designed for the rear right side of the vehicle body. It ensures stable operation of the mechanism, proper window guidance, and correct integration with the vehicle's electrical system. Thanks to the use of an original design dedicated to the BMW X1 E84, the part maintains the correct mounting points and operating geometry, which translates into trouble-free installation and predictable performance.

Specifications and technical data

• SKU: 2990388
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 2990388
• Substitutable numbers: 51352990388, 2990388, 2990298
• Location on the vehicle: Rear, Right
• Category: Window Motors & Regulators

Purpose and function in the vehicle

The presented lifter is a component from the Window regulators and motors group, responsible for controlling the movement of the window in the rear right door of the BMW X1 E84. The vehicle placement defined as the rear right side allows for precise matching of the part to a specific position in the body, which minimizes the risk of error when selecting the component.

The regulator works with the factory electric control, enabling smooth raising and lowering of the window from the buttons in the door or the driver's panel. A properly selected support structure and guides ensure the correct positioning of the window in the door frame, reducing unwanted play and noise while driving.

Benefits of using an original regulator

Using a dedicated lifter in the BMW X1 E84 brings a number of practical advantages:

• Precise fit – maintaining factory mounting points and the kinematics of the mechanism's operation.
• Consistency with the electrical system – compatibility with original wiring and window controls.
• Stable window operation – reduction of jams, skips, and uneven movement of the window pane.
• Restoration of factory functionality – restoring full operation of the rear right window after the failure of the previous component.

The product comes from the BMW range, which means maintaining a design consistent with the vehicle manufacturer's requirements and predictable behavior during long-term operation.

Installation and operational characteristics

The lifter has been designed as a component intended for a specific model and a specific mounting location, thanks to which service work is limited to standard door upholstery removal, mechanism replacement, and reassembly. The appropriate geometry of the arms and guides facilitates the correct setting of the window in the tracks, which is important for sealing and interior acoustic comfort.

Used condition means that the component comes from dismantling, and its construction retains the features allowing for further operation after correct installation. This is a solution often chosen for economical repairs, where the priority is to combine compatibility with a reasonable service cost.

Application in BMW service and diagnostics

In the case of problems with the operation of the rear right window – such as stopping halfway, lack of response to buttons, or uneven movement – replacing the complete lifter is one of the most effective methods of restoring full functionality. Mechanics specializing in the BMW brand prefer to use original regulators because it facilitates diagnostics and eliminates variables resulting from the use of random replacements.

For users interested in a broader context of engine operation and typical faults in vehicles of this brand, an article describing critical technical solutions in the popular 3 Series model may be helpful: Emergency BMW E90 engines – check what can ruin your budget. It allows for better planning of the service strategy for the entire car, not just in the area of body equipment.

Repair expansion within the window system

If you are planning a comprehensive repair or modernization of the door and window area in your BMW and need other elements from the same group, such as electric lifting mechanisms, control motors, or additional regulators, check the available parts in the BMW window regulators and motors category.

Summary

BMW X1 E84 Rear Window Electric Regulator Lifter Right O/S is a practical solution for users who want to restore the efficiency of the rear right window while maintaining factory operating parameters. Proper fitment for the specific model, compliance with the electrical system, and the design intended by the vehicle manufacturer make it a rational choice for repairs to the window system in the BMW X1 E84.