BMW E87 E90 Front Seat Lordosis Pad Lumbar Bag Back Support 7140555

BMW E87 E90 Front Seat Lordosis Pad Lumbar Bag Back Support is a specialized component of the front seat lumbar support system, designed for BMW 1 Series E87 and 3 Series E90 models. This component from the Seats and benches category allows for the restoration of proper lumbar adjustment functionality, improving seating ergonomics and driving comfort. Thanks to its original design intended for the front of the vehicle, the part ensures a proper fit to the factory seat frame.

Specifications and technical data

• SKU: 7140555
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7140555
• Substitutable numbers: 52107140555, 7140555, KZ
• Location on the vehicle: Front
• Category: Seats and Sofas

Purpose and function of the lumbar support element

The presented lumbar support insert is designed for installation in the front seat of a BMW, in the backrest area. Its task is to shape the backrest profile in the lumbar region so that the driver's or passenger's spine is stably supported during city and highway driving. The "lordosis pad / lumbar bag" design works with the factory adjustment mechanism, allowing for precise adjustment of the backrest's firmness and curvature to the user's individual preferences.

Thanks to the use of a dedicated solution for BMW E87 and E90 series seats, consistency with the original seat geometry and integrated adjustment systems is maintained. This is particularly important when replacing a worn or leaking element, when the goal is to restore the factory position behind the wheel and improve lower back stabilization during long trips.

Construction and fit for BMW seats

The lumbar support element in this seat model has been designed as an integral part of the backrest adjustment system. Its shape and mounting method are adapted to the construction of BMW E87/E90 front seats, which facilitates installation in place of the factory component. This makes it possible to maintain the original adjustment range and proper interaction with other frame and upholstery elements.

Proper fit to the seat is crucial for even pressure distribution on the user's back. A properly functioning lumbar support system reduces point overloads, which can translate into a more stable sitting position and better vehicle control. This solution will be especially appreciated by drivers covering long distances, for whom seat comfort and ergonomics are an important element of driving safety.

Application in the BMW E87 / E90 series

This type of lumbar cushion is used in the front seats of the BMW 1 Series E87 and 3 Series E90, in versions equipped with lumbar adjustment. The design was developed with the factory BMW seating system in mind, which allows for consistency with the original interior design. Replacing a worn element with a functional component of this type is recommended in situations where the lumbar adjustment stops working properly or the comfort of back support clearly deteriorates.

Due to its dedicated purpose for the front part of the cabin, this element works with factory rails, adjustment mechanisms, and seat upholstery. This allows for maintaining the aesthetics of the interior and the full functionality of the seating system, without the need for interference with the vehicle's construction.

Characteristics of the used component

The offered lumbar support element comes from disassembly and is classified as a used original BMW component. This type of part is a good solution for users who want to restore seat functionality while maintaining compliance with the factory interior design. Choosing an original element from the secondary market allows for maintaining the structural consistency of the seat and fit with other components of the seating system.

Before installation, it is recommended to verify compatibility with the specific seat version and vehicle equipment configuration. A properly selected lumbar insert will enable effective regeneration of the back support function, which can significantly improve perceived driving comfort and stability of the position behind the wheel.

Support for interior tuning and modernization

If you are planning a broader modernization of the seats in your BMW, it is worth considering combining the replacement of the lumbar support with other work on the seats, such as refreshing the upholstery or replacing adjustment elements. Inspiration and practical tips on using components from the secondary market can be found in the article Car interior tuning with Global Parts, which discusses the possibilities of improving cabin ergonomics and appearance using used seats and steering wheels.

If you are planning a comprehensive repair or modernization of the seating area in your BMW and need other elements from the same group, such as headrests, seat cushions, or backrests, check the available parts in the BMW Seats and benches category.