Mercedes W251 Positive Battery Cable Lead Wire Starter A2515400130

Mercedes W251 Positive Battery Cable Lead Wire Starter is an original component from the Cables, harnesses and connectors group, designed for reliable transmission of starting current in the vehicle's electrical system. Its robust construction and factory-fit for Mercedes W251 class models ensure stable operation of the starting system and reduce voltage drops at the critical moment of engine ignition.

Specifications and technical data

• SKU: A2515400130
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2515400130
• Substitutable numbers: A2515400130, A 251 540 01 30
• Category: Wiring Harnesses, Cables & Connectors

Purpose and function in the electrical system

This positive battery cable connects the positive terminal of the battery to the starter, ensuring safe and efficient transfer of high starting current. The properly selected conductor diameter and factory-made terminals minimize energy loss, which translates into more reliable engine starting, especially under high system load.

As a component dedicated to the Mercedes W251 platform, the cable is matched in terms of length, routing shape, and connector type, which facilitates installation in original mounting points and allows for maintaining the factory wiring harness layout.

Construction and design advantages

The cable belongs to the Cables, harnesses and connectors group, meaning it has been designed to operate in the demanding environment of the engine compartment. The insulation is resistant to high temperatures, vibrations, and typical road contaminants, while the eyelet terminals and connectors are prepared for a stable, mechanically secure connection to the battery and starter.

The factory geometry of the cable helps avoid incorrect positioning in the engine bay, reducing the risk of chafing and accidental contact with moving parts. As a result, the installation remains organized, and the risk of failure resulting from mechanical damage to the cable is minimized.

Condition of the component and installation aspects

The offered cable is a used part, which in practice means it comes from disassembly and retains the manufacturer's original specifications. For many Mercedes users, this represents a beneficial combination of factory fitment and an attractive price compared to new components.

During installation, it is worth paying attention to:

• thorough cleaning of ground points and contacts from tarnish and corrosion,
• proper tightening of screw connections,
• restoring the factory routing of the cable in holders and clips.

This approach allows you to fully utilize the potential of the cable and limit voltage drops in the starting system.

Why choose an original Mercedes cable

The original Mercedes W251 Positive Battery Cable Lead Wire Starter ensures compatibility with the Mercedes W251 electrical system without the need for modifications, soldering, or custom-made terminals. This translates into shorter installation time, lower risk of errors, and stable operating parameters of the starting system.

Additionally, using a component from the same family as other harnesses in the vehicle facilitates the diagnosis of potential faults – an electrician or mechanic deals with a cable of known characteristics, consistent with the manufacturer's service documentation.

System expansion and service knowledge

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other elements from the same group, such as power cables, harness sections, or service connectors, check the available parts in the Mercedes cables, harnesses and connectors category.

For users interested in a broader context of operation and servicing of engine accessories in popular models of this brand, a valuable supplement may be an article describing practical tips regarding timing, injection, and part selection – you can find it here: Reliability under the star sign – how to take care of engine accessories in popular Mercedes-Benz C and E class models?.