BMW 1 3 Series E81 E87 E90 E92 2 Front Seat Lordosis Pad Lumbar Support Pump

The BMW E81 E87 E90 E92 Seat Pump Lumbar Cushion is an item from the Seats and Benches category, designed for the lumbar support system in BMW front seats. It's a practical solution for drivers and passengers who want to restore the functionality of lumbar adjustment and improve seat ergonomics without the costly replacement of the entire seat.

Specifications and technical data

• SKU: 7138788-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7138788
• Substitutable numbers: 52107138788, 7138788, 9132290, EM
• Location on the vehicle: Front
• Category: Seats and Sofas

Application and Function in BMW Seats

The seat pump is responsible for supplying air to the lumbar cushion in the front part of the seat, allowing for precise adjustment of the support to the spine's contour. In BMW vehicles of the E81, E87, E90, and E92 series, this system is an important element of comfort, especially on longer journeys, where stable lumbar support reduces fatigue and muscle tension.

Thanks to the use of an original BMW solution, the pump works with the factory seat controls, maintaining consistency with the existing installation and the logic of the adjustment system.

Construction and Technical Characteristics

The presented pump is a component of the seat's pneumatic system, which works with the lumbar cushion and air supply lines. The construction was developed by BMW with stable operation in mind under vehicle operating conditions, taking into account variable temperatures and vibrations occurring in the cabin.

The placement on the vehicle specified as front means that the element is intended for installation in the front seats, within their structure. This position facilitates integration with the backrest adjustment mechanisms and ensures a short airflow path to the lumbar cushion.

Benefits of Using a Used Lumbar Cushion Pump

Choosing a used BMW component for the lumbar support system allows for the restoration of seat functionality while maintaining reasonable service costs. Using an original pump from the same model family:

• maintains compatibility with the seat's factory electrical and pneumatic system,
• allows for consistent operation of the lumbar adjustment,
• eliminates the need for adapting universal solutions.

This solution is particularly beneficial for users who want to restore lumbar support function without altering the seat's structure or replacing the entire seat.

Integration with the Interior and Driving Comfort

A functional lumbar cushion pump in a BMW seat directly impacts driving comfort, especially in cars used daily or on long journeys. Adjustable lumbar support:

• facilitates adopting a stable driving position,
• reduces strain on the lumbar region,
• supports ergonomic adjustment of the backrest and seat.

This makes the BMW interior more functional, and the seat becomes better tailored to the individual preferences of the driver and passenger.

BMW Seats and Benches – Interior Expansion and Tuning

If you are planning further modernization of your seating system, consider selecting other items from the BMW Seats and Benches category. The full offer can be found in the BMW Seats and Benches section, where you can choose compatible components for your model.

More inspiration for improving cabin ergonomics and appearance can be found in the guide Car Interior Tuning with Global Parts – Used Seats and Steering Wheels, which shows how to consciously use used equipment to refresh your car's interior and improve driving comfort.

Summary

The BMW E81 E87 E90 E92 Seat Pump Lumbar Cushion is a practical choice for users who want to restore the lumbar support function in their front seats without replacing the entire seat. Its original BMW design, intended for front-seat installation, and integration with the factory adjustment system make it a functional solution for those who care about the comfort and ergonomics of their car's interior.