BMW G30 Front Seat Lumbar Right Left Backrest Width Adjustment Pump 7387535

BMW G30 Front Seat Lumbar Right Left Backrest Width Adjustment Pump is an original lumbar support system component designed for installation in front driver and passenger seats. It ensures precise adjustment of the backrest shape, which translates into stable spinal support while driving. This is a practical solution for users who want to restore full functionality to the seats in their BMW 5 Series G30.

Specifications and technical data

• SKU: 7387535
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7387535
• Substitutable numbers: 7387535, 52107387535
• Location on the vehicle: Front, Left, Right
• Category: Additional Seat Parts

Purpose and function in the BMW G30 seat

The presented pump is responsible for adjusting the lumbar support in the front seat backrest, allowing for changes in the inflation level of the lumbar cushion. This allows the driver and passenger to adjust the backrest profile to their physique, which improves comfort on long journeys and reduces back fatigue.

The component works with the factory BMW seat adjustment system, maintaining consistency with the original electrical installation and controls. Using parts from the Other seat parts group allows for maintaining interior ergonomics in accordance with the manufacturer's standards.

Vehicle placement and installation configuration

The pump is intended for installation in the front seat area, with the possibility of use on both the left and right sides. This configuration facilitates servicing the lumbar support system regardless of which seat requires intervention. The solution is particularly useful for:

• restoring lumbar adjustment functionality after a factory component failure,
• comprehensive vehicle interior renovation,
• diagnosing the seat comfort system when there are issues with maintaining pressure in the lumbar cushion.

Proper placement on the vehicle helps maintain the original seat geometry and correct interaction with other seat system components.

Benefits of using the original lumbar adjustment pump

Using a dedicated pump in the BMW G30 provides a number of practical utility benefits:

• Compatibility with the factory seat system – the component is designed for a specific vehicle platform, which promotes correct interaction with the installation and controls.
• The ability to restore full lumbar support functionality – especially important in high-mileage cars, where seating comfort has a direct impact on driver fatigue.
• Stable lumbar support – improves the ergonomics of the driving position and supports even load distribution on the spine.

The element from this group allows for a technically correct repair without the need to modify the seat structure or vehicle installation.

Part condition and use in vehicle service

The offered pump comes from the used OEM components segment, which means it is an original part from disassembly, intended for further use after proper installation. This type of solution is often chosen by professional workshops and conscious users who are looking for parts consistent with factory specifications while maintaining reasonable repair costs.

Before installation, it is recommended to perform a standard verification of the seat installation and check the tightness of the lumbar support system to ensure the entire system works correctly after replacing the component.

Expanding BMW seat area upgrades

If you are planning a comprehensive repair or upgrade of the seat area in your BMW and need other elements from the same group, such as adjustment mechanisms, rails, or additional comfort modules, check the available parts in the Other BMW seat parts category.

For drivers interested in a broader look at driving ergonomics and the interaction between the seat and the steering system, an article explaining how the vehicle control system works may be helpful – you can find it here: Steering system and power steering – how it works and what breaks?.