Lumbar Pad Support BMW E81 E87 E90 E91 E92 Front Seat Lordosis Pump Control Unit

Visual condition of the part

The product shows signs of use visible in the photos.

Lumbar Pad Support BMW E81 E87 E90 E91 E92 Front Seat Lordosis Pump Control Unit is a precision component of the lumbar support system, designed for installation in the front seat of selected BMW 1 and 3 Series models. Thanks to its original design, it ensures stable operation of the lumbar pad, improving seating ergonomics and comfort during long drives. This solution is particularly beneficial when replacing a damaged module in an existing seat.

Specifications and technical data

• SKU: 7138786-3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7138786
• Substitutable numbers: 52107138786, 7138786
• Location on the vehicle: Front
• Category: Seats and Sofas

Application and function in the front seat

The lumbar pad pump is responsible for adjusting the inflation level of the chamber in the seat backrest, allowing the driver or passenger to customize the support to their individual driving position. The component operates within the front seat area, working in conjunction with the backrest adjustment control system. A properly functioning pump translates into better spinal load distribution, which reduces fatigue during daily vehicle use.

Compatibility with BMW models

The presented component is designed for the seating system in selected versions of the BMW E81, E87, E90, E91, and E92 series. This means it can be used as a replacement for the factory-installed pump in the front seat, maintaining the correct geometry and mounting method. For selection certainty, it is recommended to compare the design and connectors with the component currently installed in the vehicle.

Characteristics and advantages of the solution

The offered lumbar pad pump belongs to the group of components responsible for seating comfort in the Seats and benches category. It is distinguished by:

• dedicated design for the lumbar support system in the front seat,
• preservation of the factory backrest adjustment concept in BMW models,
• the ability to restore full functionality to the existing lumbar pad without interfering with the seat structure,
• compatibility with the original seat adjustment control system.

Thanks to this component, the operation of the lumbar support system can be restored in an orderly manner, which is particularly important in vehicles used for long-distance travel.

Component condition and installation aspects

The product is offered as a used part, which allows for an economical repair of the seat system while maintaining the original BMW design. Before installation, it is recommended to perform a standard verification of the installation and the tightness of the lumbar pad hoses in the vehicle. The pump is intended for operation in the front area of the vehicle, within the structure of the front seat, therefore installation should be carried out in accordance with safety rules regarding the disassembly of seats and upholstery elements.

Expansion and modernization of the BMW seating area

If you are planning a comprehensive repair or modernization of the seating area in your BMW and need other components from the same group, such as seat frames, adjustment mechanisms, or complete seats, check the available parts in the BMW Seats and benches category.

If you want to better plan your interior modernization, choose the right seats, steering wheel, and multimedia from the secondary market, and at the same time ensure compatibility and correct installation, it is worth reading the guide: Premium interior for half the price: second-hand seats, steering wheels, and multimedia.