Audi A4 B7 2.0 TDI Battery Cable Wiring Harness 8EO971824E

Audi A4 B7 2.0 TDI Battery Cable Wiring Harness is an original electrical system component from the Cables, harnesses and connectors group, designed for the positive power supply system in the Audi A4 B7 generation model with a 2.0 TDI engine. This used OEM part ensures factory-fit, a stable electrical connection, and predictable performance of the starting and charging system.

Specifications and technical data

• SKU: 8EO971824E
• Mark: Audi
• Condition: Used
• OEM Part Number: 8EO971824E
• Substitutable numbers: 8EO971824E, 8EO 971 824 E
• Category: Wiring Harnesses, Cables & Connectors

Purpose and function in the vehicle

The positive battery terminal with cable is responsible for a secure and low-resistance connection between the battery and the vehicle's electrical system. In the Audi A4 B7 2.0 TDI, this component operates within the starting circuit and the power supply for main electrical consumers, which is why its condition directly affects:

• voltage stability during engine start-up,
• efficiency of the charging system,
• limitation of voltage drops in the installation,
• reduction of the risk of connection overheating.

Thanks to a design consistent with the original Audi factory specifications, the cable with the terminal maintains the correct routing geometry in the engine bay, as well as the appropriate length and conductor cross-section.

Construction and technical features

The element belongs to the Cables, harnesses and connectors group, meaning it was designed as an integral part of the vehicle's electrical system. The conductive and insulating materials used are adapted to the current loads typical for the 2.0 TDI diesel engine, and the terminal itself ensures a firm grip on the battery pole.

The factory-standard design of the ends and connectors allows for installation in existing mounting points without the need for modifications, soldering, or crimping universal terminals. This reduces the risk of improper contact resistance and facilitates the diagnosis of potential faults in the future.

Condition, installation, and service application

The offered positive battery terminal with cable is a used part, sourced from dismantling, which allows for maintaining the manufacturer's original specifications while optimizing repair costs. Before installation, it is recommended to perform a standard inspection of the contact surfaces and cable insulation, as well as to clean the battery poles.

The component is particularly useful in situations where the vehicle experiences:

• starting problems despite a functional battery,
• signs of overheating or corrosion on the existing terminal,
• mechanical damage to the positive cable,
• unstable power supply voltage for electrical consumers.

Benefits of using the original cable with terminal

Using the original positive battery terminal with cable in the Audi A4 B7 2.0 TDI allows for maintaining the consistency of the electrical system with the factory design. Proper matching of length, cross-section, and connector type translates into a lower risk of failure, easier diagnostics, and predictable operating parameters of the starting system.

If you are planning a comprehensive repair or upgrade of the electrical system area in your Audi and need other components from the same group, such as power cables, engine bay harnesses, or battery connectors, check the available parts in the Audi Cables, harnesses and connectors category.

Additional technical support

During major service work on the drivetrain and accessories, it is worth paying attention to the general condition of components that work with the engine's electrical system. If you are considering a wider range of repairs related to the power unit, a practical guide may be helpful – more information can be found in the article How to buy a used car engine and avoid a bad deal – a step-by-step guide.