Seat Backrest BMW E81 E82 Front Left Basic Heated Seat N/S Black Leather Boston

Visual condition of the part

The product shows signs of use visible in the photos.

Seat Backrest BMW E81 E82 Front Left Basic Heated Seat N/S Black Leather Boston in black Boston leather is a factory-original component from the Seats and benches category, designed for installation on the driver's side. It is a practical solution for users looking to restore full seat functionality while maintaining a consistent interior look and original BMW specifications.

Specifications and technical data

• SKU: 9124521-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9124521
• Substitutable numbers: 9124521, 52109124521
• Location on the vehicle: Front, Left
• Upholstery material: Leather
• Color: Black
• Category: Seats and Sofas

Design and purpose

The offered backrest is a component of the front seat mounted on the left side in BMW 1 Series E81/E82 models. Designed as part of a seat system with a heating function, it allows for the preservation of factory ergonomics and compatibility with the vehicle's electrical installation, without the need for structural modifications.

This element is intended for use in the basic seat (Basic version), which facilitates replacement in cars equipped with standard seats, without sport profiles or advanced adjustment features.

Material and finish

The backrest is finished with black leather upholstery, consistent with the Boston trim line used by BMW. The leather surface provides a pleasant tactile feel, is easy to maintain daily, and is resistant to typical operational wear in the seating area.

The dark color scheme makes it easy to match with most interior configurations, and the use of original BMW leather ensures consistency in texture and shade with other cabin elements.

Functionality and user comfort

The backrest is adapted to work with the factory seat heating system, which increases driving comfort in low temperatures. By maintaining the original design, heat distribution and integration with the vehicle's installation remain in accordance with the manufacturer's specifications.

Replacing the backrest alone allows for an economical seat repair in the event of mechanical damage or upholstery wear, without the need to purchase a complete seat. This solution is particularly beneficial for maintaining interior aesthetics and preserving heating functionality.

Application in BMW interior restoration

This element is suitable for both repairing a single seat and for the gradual restoration of the entire interior in a BMW E81/E82. Maintaining the original backrest geometry and factory leather type makes it easy to achieve a consistent visual and ergonomic effect, without differences in shape or seat firmness.

For users planning a wider cabin modernization, including the replacement of seats, steering wheels, or multimedia systems, the practical tips contained in the article Premium interior for half the price: second-hand seats, steering wheels, and multimedia, which describes the selection and installation of aftermarket equipment, may be useful.

Benefits of choosing an original BMW backrest

Choosing a factory seat backrest for the BMW E81/E82 means maintaining compatibility with the body structure, seat rails, and safety systems. The original element from the Seats and benches category ensures proper fitment to the frame, seat upholstery, and side panels, which translates into stable mounting and predictable performance in daily use.

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 backrests, seat cushions, or complete seat modules, check the available parts in the BMW Seats and benches category.

Additional arguments for choosing original, used components instead of replacements can be found in the guide 5 reasons why a used OEM part is a better choice than a replacement, which discusses the practical aspects of fitment, durability, and installation in popular models.