Mercedes W169 W204 Battery Relay Module Box A1695450046 A0035422619

Mercedes W169 W204 Battery Relay Module Box is a component from the Electronic control modules and controllers group, responsible for precise power management in the rear part of the vehicle. This solution is designed for users expecting stable electrical system operation and compatibility with Mercedes' factory electronics architecture.

Specifications and technical data

• SKU: A1695450046-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1695450046
• Substitutable numbers: A1695450046, A 169 545 00 46, A0035422619, A 003 542 26 19, V23132-A2001-X27
• Location on the vehicle: Rear
• Category: ECUs & Computer Modules

Module purpose and function

The described Mercedes W169 W204 Battery Relay Module Box is designed for installation in the rear of the vehicle body, where it works with the vehicle's power supply system. Its task is to control current flow and safely engage selected circuits, which translates into stable operation of electronic systems and reduces the risk of overloads.

Thanks to a design consistent with Mercedes factory solutions, the module maintains the correct operating characteristics in W169 and W204 series vehicles, supporting the proper functioning of onboard systems without the need for interference with the electrical harness.

Compatibility with Mercedes electronics

As a Mercedes brand component, the module belongs to the Electronic control modules and controllers group, which means it matches the control logic used in the manufacturer's original installations. Using the correct OEM part number and available replacement numbers (visible in the specification) facilitates the selection of the component for a specific vehicle configuration.

The location marked as Rear allows for quick identification of the installation area in the car, which is important both during replacement and when diagnosing potential faults in power supply circuits.

Operational characteristics and installation

The presented module is a used part, marked in the warehouse system via a dedicated SKU, which facilitates identification and order processing. The used condition means that the element comes from dismantling, and its operating parameters meet the operational requirements for this type of component.

Thanks to the preservation of the original design, installation is performed in a manner similar to the factory one – after matching to a specific model and equipment version, it is possible to use existing mounting points and electrical connectors. This solution reduces the time required for replacement and minimizes the risk of installation errors.

Why consider a used electronic module

Choosing a used module from the Electronic control modules and controllers group allows for a significant reduction in repair costs while maintaining compliance with factory specifications. A properly selected element, based on the correct OEM part number and reference numbers, can work in the vehicle in a way comparable to a new component, provided it is correctly installed and configured.

If you want to better understand when choosing used electronics is justified and how to safely select controllers and modules, it is worth reading the guide: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?

Selection and expansion of the control system

When selecting the Mercedes W169 W204 Battery Relay Module Box, it is crucial to compare the OEM part number and replacement numbers with the vehicle data – this information can be found in the technical specification section. In case of doubt, expert tips on the compatibility of electronic components, available in the article, may also be helpful: how to professionally select used car parts, saving time and nerves.

If you are planning a comprehensive repair or upgrade of the electrical system area in your Mercedes and need other elements from the same group, such as control modules, auxiliary controllers, or additional power management systems, check the available parts in the Electronic control modules and controllers Mercedes category.