BMW G30 G31 LCI G11 G12 Positive Battery Terminal Harness Wiring Cable 9355559

The BMW G30 G31 LCI G11 G12 Battery Positive Terminal Cable is an original cable harness with a positive terminal, designed for factory BMW electrical systems. This component ensures a stable connection between the battery and the vehicle's electrical system, which translates to reliable engine starting and proper operation of electronic systems. Thanks to its construction compliant with manufacturer standards, it is a particularly beneficial solution for repairs and restoring the full functionality of the power supply system.

Specifications and technical data

• SKU: 9355559
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9355559
• Substitutable numbers: 9355559, 61129355559
• Category: Battery Accessories

Purpose and Function in the Vehicle

The offered positive battery terminal cable harness has been designed specifically for BMW 5 Series G30/G31 LCI and 7 Series G11/G12 models. It is responsible for a safe and low-resistance connection between the battery and the main electrical system, which is crucial for the starter, charging system, and control modules.

This component is part of the Battery Accessories group, responsible for the correct mounting, routing, and connection of the power source in the vehicle. Proper selection of the positive terminal harness minimizes the risk of voltage drops, connector overheating, and malfunction of comfort and safety systems.

Construction and Technical Advantages

The BMW battery positive terminal cable harness has been manufactured as an OEM part, meaning full compliance with factory manufacturer standards. The construction includes:

• a dedicated positive terminal matched to batteries used in the specific BMW generation,
• a properly selected cable cross-section, ensuring adequate current carrying capacity,
• factory-specified ends and connectors enabling installation at original connection points.

Thanks to this, the cable works with factory fuses and modules, and its installation does not require modifications to the electrical system. The appropriate geometry and length of the harness facilitate routing the cable along factory paths, which reduces the risk of chafing and mechanical damage.

Condition, Fitment, and Service Application

The product is a used part, offered as a used original BMW component, providing a cost-effective alternative to new parts while maintaining factory quality. This is a practical solution for situations where replacing a damaged harness is necessary due to failure, terminal corrosion, or cable overheating.

Selecting an original positive terminal harness is particularly important in modern BMW models, where the power supply system interacts with advanced energy management systems. Using a component compliant with factory specifications helps maintain stable charging and starting parameters, and also reduces the risk of vehicle electronics errors.

Significance for Electrical System Reliability

A functional positive battery terminal cable directly impacts:

• reliable engine starting in various operating conditions,
• proper operation of the alternator and charging system,
• stable power supply to control modules and comfort systems,
• reduction of energy losses resulting from increased connection resistance.

Replacing a worn or damaged harness with an original BMW part allows for the restoration of factory power supply system parameters, which is especially important in vehicles equipped with extensive electronics and start-stop systems.

If you are planning a comprehensive repair or upgrade of the electrical power supply area in your BMW and need other components from the same group, such as ground cables, additional power harnesses, or battery mounting hardware, check the available parts in the BMW Battery Accessories category.

If you want to better understand the relationship between the condition of the electrical system and the durability of the drivetrain and other components, you will find practical tips in the article Used Differential – What You Should Know About Used Differentials, Sensors, and Drivetrain Systems, which helps you make informed choices when selecting used components.