BMW 1 Series E81 E82 E87N E88 NOx Cable Wiring Petrol 7558911 12517558911

The BMW E81 E87 LCI E88 Gasoline NOX Cable Wire is an original electrical component designed for the NOX sensor system in gasoline BMW 1 Series models. This product belongs to the Wires, Harnesses, and Connectors category, making it a proper addition to the factory engine harness and ensuring correct communication with the vehicle's electronics.

Specifications and technical data

• SKU: 7558911
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7558911
• Substitutable numbers: 12517558911, 7558911
• Fuel type: Petrol
• Category: Wiring Harnesses, Cables & Connectors

Purpose and Function of the NOX Wire

The NOX Cable Wire for BMW E81, E87 LCI, and E88 is responsible for a stable connection between the nitrogen oxides sensor and the vehicle's electrical system. In gasoline engines, the correct operation of the NOX sensor is crucial for controlling the air-fuel mixture, exhaust emissions, and communication with the engine control unit.

This component is part of a dedicated harness, which allows for:

• reliable signal transmission from the NOX sensor to the engine control unit,
• maintaining stable operating parameters of the exhaust gas purification system,
• reducing the risk of diagnostic errors related to open circuits or interference.

Construction and Fit for BMW

As a part of the Wires, Harnesses, and Connectors group, this wire has been designed for specific BMW 1 Series models, ensuring the correct length, connector types, and routing within the engine bay. This allows for installation at the manufacturer-intended mounting points without requiring modifications to the existing wiring.

Key design advantages include:

• factory connectors matched to the NOX sensor and the vehicle's harness,
• designed wire routing that minimizes exposure to heat and vibrations,
• compatibility with the gasoline electrical system in the specific generation of BMW 1 Series.

Benefits of Using an Original NOX Wire

Using a dedicated wire in the NOX system of a gasoline BMW helps maintain the integrity of the entire electrical installation. In practice, this means:

• stable operation of the emission control system and a reduced risk of NOX sensor-related errors,
• easier diagnostics – a proper connection minimizes false readings on service testers,
• maintaining factory engine operating parameters regarding mixture and combustion strategies.

By choosing this wire, you are investing in a component designed for a specific BMW platform, which is particularly important when working with sensitive measurement systems like NOX sensors.

Condition and Service Application

The NOX wire is offered as a used part, allowing for an economical repair of the system while maintaining the original manufacturer's specifications. This type of component is suitable for replacing a damaged section of the harness or for completing the wiring during major service work on the exhaust system or engine accessories.

Due to its function, the wire is particularly useful in situations where there are problems with NOX sensor communication, control unit errors, or mechanical damage to the harness near the exhaust system.

Other BMW Wires, Harnesses, and Connectors

If you also need other BMW wires, harnesses, and connectors for expanding or repairing your electrical system, check out our dedicated category: BMW wires, harnesses, and connectors. There you will find a wide selection of installation components tailored for various models of this brand.

For those interested in a broader perspective on BMW powertrains and selecting used parts, we recommend an article comparing popular diesel engines – BMW N47 vs M57 / M57N / M57N2 – Ranking of Legendary Diesels and Used Part Costs. This is a good addition to your knowledge when planning long-term vehicle ownership.