Audi Q5 Mk2 FY Negative Battery Earth Cable Terminal Lead 80A971235

Audi Q5 Mk2 FY Negative Battery Earth Cable Terminal Lead is an original component from the Cables, harnesses and connectors group, designed for the power supply system in the second-generation Audi Q5 model. Its robust construction and factory-fit design ensure a stable earth connection between the battery and the chassis, which translates into reliable operation of the vehicle's electrical system.

Specifications and technical data

• SKU: 80A971235
• Mark: Audi
• Condition: Used
• OEM Part Number: 80A971235
• Substitutable numbers: 80A971235, 80A 971 235
• Part type: Negative Battery Cable
• Category: Wiring Harnesses, Cables & Connectors

Purpose and function in the vehicle

The battery earth cable in the Audi Q5 Mk2 FY is responsible for a direct, low-resistance connection between the negative battery terminal and the chassis structure. A properly selected terminal and cable cross-section reduce voltage drops, which is essential for:

• engine starting under high current loads,
• stable operation of electronic control units and modules,
• correct functioning of comfort and safety systems.

Thanks to the factory design, this component works with the original chassis earthing points, which facilitates installation and reduces the risk of installation errors.

Construction and technical features

The earth cable used in the Audi has been designed as part of a power supply system with high resistance to current loads and operating conditions in the engine compartment. The design solutions used include, among others:

• a metal battery terminal ensuring stable pressure on the pole,
• a cable with an appropriate cross-section, adapted to high starting currents,
• terminals adapted to the factory chassis earthing points.

A set configured in this way reduces the risk of connector overheating, sparking, and local voltage drops, which is important for the durability of the entire electrical system.

Benefits of using an original Audi earth cable

Using an original earth cable in the Audi Q5 Mk2 FY allows you to maintain the parameters specified by the vehicle manufacturer. In practice, this means:

• reliable fit to the power supply system – the length, shape, and terminals of the cable are consistent with the factory configuration,
• correct routing of the harness in the engine compartment, without tension or unnatural kinks,
• reduced risk of starting problems and electronic errors resulting from improper earthing.

An element from this group is particularly important when diagnosing problems with voltage, unstable operation of control units, or sporadic errors in onboard systems – replacing the earth cable with an original component is often an effective solution to such faults.

Product condition and service application

The offered battery earth cable is a dismantled part, which allows for an economical repair of the power supply system while maintaining the original Audi specification. This type of part will work well both for standard replacement of a worn cable and for service work related to:

• modernization of the electrical system,
• resolving earthing problems in the vehicle,
• restoring the factory configuration after previous modifications.

For workshops specializing in the Audi brand and users who care about the consistency of the components used, this is a solution that allows maintaining compliance with factory standards.

Related Audi installation components

If you are planning a comprehensive repair or modernization of the electrical installation area in your Audi and need other elements from the same group, such as additional harnesses, connectors, or power cables, check the available parts in the Audi cables, harnesses and connectors category.

For users interested in a broader look at the technical solutions used in the sports variants of this brand, including differences in the construction of engines, brakes, and chassis compared to standard versions, the article Audi RS vs other models – what is hidden under the hood and chassis? may be helpful, as it organizes key information about components used in various Audi variants.