Mercedes W205 Battery Lead Wiring Loom Cable Hybrid Cable Harness A2054404136

Mercedes W205 Battery Lead Wiring Loom Cable Hybrid Cable Harness is an original electrical system component designed for factory installation in W205 series models. This used, verified wiring harness from the Cables, wiring looms and connectors group ensures the maintenance of correct power parameters and compatibility with the factory electrical architecture of the Mercedes vehicle. It is a practical solution for users who want to restore proper battery power supply without interfering with the installation design.

Specifications and technical data

• SKU: A2054404136
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2054404136
• Substitutable numbers: A2054404136, A 205 440 41 36
• Category: Wiring Harnesses, Cables & Connectors

Technical characteristics and purpose

The offered battery cable with wiring loom has been designed specifically for the W205 platform, ensuring proper cable routing, mounting points, and wire cross-sections adapted to the current loads in this model. Original connectors and terminals allow for direct connection to the existing installation, without the need for modifying ends or using additional adapters.

The component belongs to the Cables, wiring looms and connectors group, meaning it is responsible for a stable connection between the battery and other electrical system components. A correctly selected wiring harness minimizes voltage drops, reduces the risk of wire overheating, and supports the proper operation of onboard systems, including controllers, comfort modules, and safety systems.

Benefits of using an original battery wiring harness

Using a factory battery cable in a Mercedes W205 provides a number of practical benefits, important both from the point of view of reliability and subsequent service maintenance:

• Full compatibility with the electrical system – the wiring harness was developed for the specific vehicle architecture, which facilitates installation and eliminates fitment issues.
• Stable current conduction parameters – wire cross-sections and materials used are adapted to the loads typical for the starting and power supply system.
• Reduction of electrical fault risks – proper cable routing reduces the risk of chafing, short circuits, and incorrect connections.
• Easier diagnostics – maintaining the original wiring layout facilitates work for service centers using the manufacturer's technical documentation.

Component condition and service application

The battery wiring harness is offered as a used part, which allows for an economical repair of the power supply system while maintaining the manufacturer's original specifications. This solution is particularly useful in situations where the factory cable has suffered mechanical damage, corrosion on conductive sections, or deformation as a result of previous repairs.

In practice, the component will work well both for standard replacement of a worn cable and for more extensive work related to restoring proper power supply after a collision, flooding, or interference with the installation. The original battery wiring harness helps restore factory cable routing and proper mounting points, which is important for the safety and durability of the entire system.

Support for selection and system expansion

When selecting a battery cable for a specific body version and equipment level, it is worth paying attention to compliance with the manufacturer's markings and the installation configuration of the given unit. In case of expanding the electrical system or replacing a larger number of wiring harnesses, the consistency of the components used facilitates subsequent maintenance and reduces the risk of power supply problems.

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 power cables, engine bay wiring looms, or service connectors, check the available parts in the Mercedes cables, wiring looms and connectors category.

How to economically service the electrical system

Choosing a used, original battery wiring harness is a way to reduce repair costs while maintaining the quality and fit characteristic of factory parts. It is worth knowing the principles of safely using used components to consciously combine savings with repair durability – you can find more practical tips in the article Rising repair costs and the boom in used parts – how to save on car service?.