Mercedes W164 W251 Lumbar Module Front Seat Control Unit A1649100075

Mercedes W164 W251 Lumbar Module Front Seat Control Unit is an original component designed for precise control of the lumbar support in the driver or passenger seat. Thanks to its factory design, the module works seamlessly with the vehicle's electrical system, ensuring stable operation of the seat adjustment system and a comfortable driving position. This is a practical solution for users who want to restore full seat functionality in their Mercedes W164 or W251 series.

Specifications and technical data

• SKU: A1649100075-2
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1649100075
• Substitutable numbers: A1649100075, A 164 910 00 75, A0008006778, A 000 800 67 78, A 000 910 52 02, A0009105202
• Location on the vehicle: Front
• Part type: Seat Cushion
• Category: Seat Covers

Purpose and function of the lumbar module

The presented control unit is responsible for operating the lumbar support system in the front seat, allowing for precise adjustment of the backrest shape to the user's silhouette. A properly functioning module translates into:

• more stable support for the lumbar spine while driving,
• increased comfort on longer journeys,
• consistent operation with factory seat adjustment buttons.

By maintaining the original electrical architecture, the module works with the vehicle's systems without the need for any wiring modifications.

Compatibility with Mercedes W164 and W251

The Mercedes W164 W251 Lumbar Module Front Seat Control Unit has been designed for the Mercedes W164 and W251 platforms, which means it fits the factory connectors and mounts in these models. The appropriate design facilitates installation in the location provided by the manufacturer, and the use of an original control unit reduces the risk of communication issues within the seat's electrical system.

The component is intended for use in the front seat area, where it is exposed to typical operational loads, such as changes in backrest position or frequent lumbar support adjustments. Using a dedicated module allows for maintaining the consistent operation of the entire seat adjustment system.

Characteristics of the used component

The offered control unit comes from dismantling and is a used item, which in practice means it has already been in operation in a vehicle but can still provide functionality consistent with its intended purpose. This type of solution is often chosen as an economical alternative to a new module, especially when repairing seats in cars that are several or more years old.

Choosing an original module from the secondary market allows you to maintain the factory operating parameters of the lumbar system while reducing service costs. It is a practical option for users who want to restore adjustment functionality without interfering with the seat structure.

Role in seat comfort and ergonomics

A functional lumbar module has a direct impact on the ergonomics of the driver and passenger seat. It is responsible for controlling the cushions or support mechanism in the backrest, which translates into:

• the ability to adjust the firmness and shape of the backrest to the user's preferences,
• better distribution of loads on the spine while driving,
• increased body stability in the seat during longer trips.

Thanks to this, the seating comfort in a Mercedes W164 or W251 remains at a level consistent with the manufacturer's specifications, and the seat adjustment system retains its full functionality.

If you are planning a comprehensive repair or upgrade of the seating area in your Mercedes and need other components from the same group, such as seat covers, protective overlays, or additional trim elements, check out the available parts in the Mercedes Seat Covers category.

An informed choice of a used module

By deciding on a used seat control unit, you are choosing a solution that is beneficial both in terms of cost and the reuse of functional components. This approach aligns with the idea of reducing waste and extending the life cycle of automotive parts. If you want to better understand how such decisions affect the environment and your household budget, it is worth reading the article on the circular economy and the role of used parts in vehicle repairs.