Mercedes-Benz M-Class ML W164 Wiring Loom Cable Harness Fuel Tank A1645403132

Mercedes-Benz M-Class ML W164 Wiring Loom Cable Harness Fuel Tank is an original electrical system component designed for the precise connection of fuel tank accessories to the rest of the vehicle's system. Thanks to its factory design, the wiring harness ensures stable fuel system operating parameters and proper communication with the car's electronics. This used OEM component is a sensible choice for drivers who want to maintain the integrity of the electrical system in their Mercedes without excessive costs.

Specifications and technical data

• SKU: A1645403132
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1645403132
• Substitutable numbers: A1645403132, A 164 540 31 32
• Category: Wiring Harnesses, Cables & Connectors

Purpose and function of the fuel tank wiring harness

The fuel tank wiring harness in Mercedes W164 models is responsible for routing cables and connectors between components located at the fuel tank and the rest of the vehicle's electrical system. This includes signal and power cables that must operate in the demanding conditions of the chassis, while maintaining appropriate mechanical and electrical resistance. Using an original wiring harness allows for maintaining proper fuel system operation and fuel level readings, which translates into trouble-free vehicle operation.

Construction, connectors, and compatibility

This item belongs to the Cables, wiring harnesses, and connectors group, meaning it was designed as an integral part of the factory Mercedes electrical system. The construction includes appropriately selected wire gauges, factory connectors, and cable routing consistent with the original installation path in the W164 body. As a result:

• compatibility with factory mounting points and cable routing is maintained,
• connectors fit original sockets without the need for modifications,
• the installation remains consistent with the manufacturer's service documentation.

The original Mercedes origin facilitates seamless integration with the existing installation, reducing the risk of installation errors and computer diagnostic problems.

Used condition and benefits of choosing OEM parts

The offered fuel tank wiring harness is in used condition, which allows for combining an attractive price with the preservation of the factory design. Unlike aftermarket replacements with uncertain specifications, the original OEM component ensures:

• preservation of the factory cable routing geometry,
• consistency of materials used with the rest of the installation,
• easier identification and handling during subsequent repairs or diagnostics.

For owners of premium cars, choosing a used OEM wiring harness is often the most rational solution – it allows for maintaining a high level of reliability at controlled service costs.

Application in service and fuel system repairs

The Mercedes-Benz M-Class ML W164 Wiring Loom Cable Harness Fuel Tank will prove particularly useful in situations where the existing installation in the fuel tank area has suffered mechanical damage, connector corrosion, or interference that hinders further operation. Replacing the complete wiring harness instead of performing temporary repairs on individual wires allows you to:

• minimize the risk of circuit interruptions and power supply problems,
• organize cable routing in the chassis zone,
• restore the factory standard of the electrical system in the fuel tank area.

This approach is particularly beneficial in vehicles used intensively or in difficult conditions, where the reliability of the fuel system is crucial for driving comfort and safety.

Support with selection and additional information

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

Do you want to better understand why used OEM components for premium cars are currently so eagerly chosen by conscious drivers and service centers? Read the article Crisis in the new parts market? Why used originals for premium cars are the hottest trend in 2026 to make service decisions based on reliable information.