Mercedes ML W164 Lumbar Module Front Seat Lumbar Control Unit A1649100075

Mercedes W164 Lumbar Support Module Front Seat A1649100075 is a specialized electrical system component responsible for powering and controlling the lumbar support in the front seat. It belongs to the Cables, Harnesses, and Connectors group, allowing for seamless integration with the vehicle's factory wiring. This solution is designed for users who expect efficient lumbar adjustment and improved seating ergonomics in their Mercedes SUV.

Specifications and technical data

• SKU: A1649100075
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1649100075
• Substitutable numbers: A1649100075, A 164 910 00 75, A0008006778, A 000 800 67 78
• Location on the vehicle: Front
• Category: Wiring Harnesses, Cables & Connectors

Purpose and Function of the Lumbar Module

The presented module is an electrical system component responsible for the operation of the lumbar support in the front seat. Located in the front of the vehicle, it works in conjunction with the seat's wiring and adjustment controls, ensuring proper power supply and communication with other components. This enables precise lumbar support adjustment, leading to a stable driving position and enhanced comfort on longer journeys.

Construction and Integration with the Electrical System

The module falls under the Cables, Harnesses, and Connectors category, meaning it is designed to work within the existing Mercedes electrical architecture. The connectors used ensure a secure connection to the seat harness and the vehicle's body wiring, minimizing the risk of loose contacts and signal interference. The design is intended for installation in factory mounting points, facilitating servicing and reducing the need for wiring modifications.

As an original Mercedes part, the module is tailored to the specific electrical and communication requirements of this series of vehicles. The appropriate configuration of connectors and wires ensures compatibility with the safety and comfort systems used in W164 models.

Application in the Front Seat

Its placement in the vehicle, specified as the front, means the module works with the front seat wiring, particularly the lumbar support system. This is important in the context of:

• restoring full lumbar adjustment functionality after a factory component failure,
• maintaining the seat's electrical system integrity with the manufacturer's original standard,
• reducing diagnostic errors related to the seat comfort system.

By adhering to the original connection concept, the module ensures stable system operation without the need for additional adapters or harness modifications.

Product Characteristics and Benefits of Use

The offered part is a used component, which translates to an economical repair option for the lumbar support system while maintaining the manufacturer's original specifications. Compared to aftermarket alternatives, using a component from the Cables, Harnesses, and Connectors group specifically designed for Mercedes allows for:

• maintaining compatibility with the factory electrical system,
• reducing the risk of communication issues between comfort modules,
• preserving the consistency of the seat system's operating parameters with the manufacturer's design.

For workshops and individual users, this means simpler installation and a lower risk of needing further intervention in the wiring.

Fitment within the Mercedes Installation

The lumbar module for the Mercedes W164 is part of the seat comfort system, which relies on dedicated harnesses and connectors. In practice, this means that with correct selection for the vehicle model and seat configuration, full lumbar adjustment functionality can be maintained without additional modifications. This solution is particularly beneficial for vehicle repairs where maintaining the original electrical architecture is crucial.

If you are planning a comprehensive repair or upgrade of the front seat area in your Mercedes and require other parts from the same group, such as seat harnesses, wiring connectors, or power cable sections, check the available parts in the Mercedes Cables, Harnesses, and Connectors category.

For drivers particularly sensitive to seating ergonomics and comfort, knowledge about expanding the driver's area might also be useful – you can find more on this topic in the article Personalization and Ergonomics – When is it Worth Upgrading to a Premium Steering Wheel?, which discusses practical aspects of interior equipment modernization for driving comfort and precision.