Mercedes W204 Seat Module Memory Control Unit Front Left N/S A1729007500

The Mercedes W204 Front Left Seat Module is a specialized component from the Electronic Control Modules and Controllers category, responsible for advanced control of the driver's seat settings. This solution is designed for users who want to restore full functionality to their Mercedes' electric seat, maintaining factory operating logic and consistency with the vehicle's electrical system.

Specifications and technical data

• SKU: A1729007500
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1729007500
• Substitutable numbers: A1729007500, A 172 900 75 00
• Location on the vehicle: Front, Left
• Category: ECUs & Computer Modules

Module Purpose and Placement

The presented seat module is designed to operate on the front left side of the vehicle, which is the driver's seat position in Mercedes W204 models. Its construction is adapted to the electrical architecture of this model, allowing for proper cooperation with the body's electrical system, the CAN network, and other comfort controllers.

Its placement in the driver's seat area means the module is responsible for handling key adjustment functions, such as longitudinal movement, backrest adjustment, and height adjustment, according to the specific car's configuration. This allows for the restoration of correct adjustment system operation after replacement, without the need for wiring modifications or additional retrofitting.

Technical Characteristics and Vehicle Integration

As a component within the Electronic Control Modules and Controllers group, the Mercedes W204 seat module acts as a local comfort controller that communicates with other units in the vehicle. It is responsible for interpreting signals from the seat adjustment buttons and for controlling the motors and actuators responsible for the movement of individual sections of the seat and backrest.

Key advantages of this solution include:

• factory compatibility with the W204 electrical system,
• preservation of the original driver's seat functionality,
• suitability as a replacement part for a damaged controller,
• integration with safety and comfort systems as intended by the manufacturer.

The module, being a used part, comes from disassembly, allowing for an economical restoration of the seat adjustment system's functionality while maintaining the original manufacturer's specifications.

Practical Application and Benefits of Installation

Using this seat module in a Mercedes W204 is particularly beneficial in situations where there are problems with driver's seat adjustment, controller communication errors, or a complete lack of response to buttons. Replacing it with a functional unit allows you to:

• resolve faults related to electric seat adjustment,
• restore comfort to daily vehicle use,
• maintain control system consistency without interfering with the original wiring,
• ensure compliance with factory settings and the comfort system's operating logic.

For workshops and services specializing in the Mercedes brand, this is a practical service solution that reduces diagnosis and repair time while lowering costs compared to purchasing a new controller.

Mercedes Electronic Control Modules and Controllers – Selection and Technical Knowledge

If you also need other components from the Electronic Control Modules and Controllers category dedicated to this brand, it is worth checking the Mercedes Electronic Control Modules and Controllers available in our assortment to select components compatible with your vehicle's architecture.

When working with automotive electronics, knowledge about diagnostics and operation of control modules in other premium brands can also be helpful. In this context, it is worth reading the article describing the operation of multimedia systems and control modules in BMW – Years of Driving Pleasure – How to Care for iDrive Systems and Electronic Modules in BMW 3 and 5 Series Models. Although it concerns a different brand, it covers universal issues related to the operation of electronic modules, diagnostics, and the use of salvaged parts.

Summary

The Mercedes W204 Front Left Seat Module is a functional controller designed for the driver's seat, allowing for an organized and factory-compliant restoration of the adjustment system's operation. As a component of comfort electronics, it ensures proper cooperation with the vehicle's other systems, making it a practical solution for both individual users and professional services dealing with the repair and diagnostics of Mercedes vehicles.