Mercedes W204 W207 Battery Cable Positive Wiring Harness Loom A2044402232

Visual condition of the part 

The product shows signs of use visible in the photos. 

Mercedes W204 W207 Battery Cable Positive Wiring Harness Loom is an original component from the Cables, wiring harnesses and connectors group, designed for professional maintenance of the power supply system in Mercedes vehicles. It enables a stable connection between the battery and the electrical system, ensuring safe flow of starting current and proper operation of electrical consumers.

Specifications and technical data

• SKU: A2044402232
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2044402232
• Substitutable numbers: A2044402232, A 204 440 22 32
• Category: Wiring Harnesses, Cables & Connectors

Purpose and function in the electrical system

The presented battery wiring harness has been designed specifically for the W204 and W207 series models, maintaining the factory routing geometry and mounting points. As a result, the cable follows the original path, does not interfere with other components, and helps maintain order in the engine bay.

The component is responsible for a secure connection between the battery terminals and the vehicle's electrical system, which is crucial both during engine start-up and while powering all onboard systems. Properly selected wire cross-sections and factory connectors minimize voltage drops and reduce the risk of terminal overheating.

Construction, connectors and compatibility

The harness belongs to the Cables, wiring harnesses and connectors group, meaning it includes both power cables and dedicated terminals and connectors matched to the factory connection points in the Mercedes. The construction is intended for operation in the demanding environment of the engine bay, taking into account vibrations, temperature changes, and exposure to moisture.

Original connectors ensure:

• stable electrical contact with battery terminals and ground points,
• easy removal and installation during service,
• compliance with factory safety features and mounting brackets.

By adhering to the manufacturer's specifications, the harness works with factory diagnostic systems and does not require any modifications to the installation.

Condition, service application and benefits of installation

The product is a used item, making it an attractive service solution for users looking for original components at a reasonable price. Replacing a damaged or corroded battery cable with an original harness allows for restoring correct power parameters without the need to use replacements of uncertain quality.

In practice, the installation of such a harness is particularly recommended when there are:

• starting problems despite a functional battery,
• sporadic power outages or resetting of control units,
• visible insulation damage, scorching, or loose connectors on the existing installation.

Using an original battery cable helps reduce voltage drops, improve the stability of electronic systems, and decrease the risk of failures related to terminal overheating.

Professional fitment and technical support

By choosing this battery wiring harness for your Mercedes, you gain a component designed for a specific vehicle platform, which facilitates installation and reduces the time required for service work. For proper part selection, it is worth verifying the markings in the vehicle's technical specification and comparing the geometry of the existing installation with the offered component.

If you are planning a comprehensive repair or upgrade of the power supply electrical system in your Mercedes and need other elements from the same group, such as additional harnesses, ground cables, or service connectors, check out the available parts in the Mercedes Cables, wiring harnesses and connectors category.

Technical knowledge and best service practices

When working with the power supply system and electrical installation, it is worth following proven service procedures and ensuring proper tightening of connectors, cleanliness of contacts, and correct cable routing. Additional information on the diagnostics of drive and power supply components, as well as the selection of used components, can be found in the article Clutch and dual-mass flywheel – diagnostics and selection of parts for the drivetrain, which organizes the approach to servicing key components in modern cars.