BMW F80 M3 F82 F83 M4 Lambda Probe Oxygen Monitor Sensor 7848487

The BMW F80 M3 F82 F83 M4 Lambda Sensor is an original part from the Lambda Sensors & O2 Sensors group, designed for precise control of the fuel-air mixture in sporty BMW M series models. This used OEM part ensures a factory fit for the exhaust system and engine control unit, facilitating a hassle-free replacement. It's a solution for users seeking proven quality while maintaining reasonable service costs.

Specifications and technical data

• SKU: 7848487
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7848487
• Substitutable numbers: 11787848487, 7848487
• Category: Oxygen Sensors

Purpose and Role in the Powertrain

The lambda sensor in BMW F80 M3, F82, and F83 M4 models is responsible for continuously measuring oxygen content in the exhaust gases, sending this signal to the engine control unit. Based on this data, the control unit adjusts the fuel injection, ensuring stable engine operation, optimizing fuel consumption, and reducing emissions. Using an original O2 sensor is particularly crucial for high-performance M engines, where reading accuracy directly impacts performance and running smoothness.

Advantages of Using an Original BMW Lambda Sensor

Choosing an original O2 sensor for the BMW F80 M3 / F82 / F83 M4 ensures:

• factory fit for the electrical harness and exhaust thread,
• a stable signal for the engine control unit across the full load range,
• proper compatibility with fuel maps dedicated to M versions,
• a reduced risk of diagnostic errors and engine warning lights.

This maintains the coherence of the powertrain's operation, and engine parameters remain consistent with the manufacturer's specifications. This is especially important in dynamically driven vehicles where the exhaust system and mixture control operate under demanding conditions.

Product Characteristics and Installation

The presented component belongs to the Lambda Sensors & O2 Sensors group, meaning it is designed to operate at high temperatures and in exhaust gas environments. The original construction ensures adequate mechanical resistance and proper shielding of signal wires, minimizing electrical interference. Installation involves removing the old sensor, screwing in the new one in its factory location, and connecting the plug to the existing harness – following standard service procedures.

Before purchasing, it is advisable to verify compatibility by OEM number or interchangeable part numbers to ensure the sensor matches the specific engine configuration and vehicle year. Proper fitment translates to correct signal interpretation by the control unit and eliminates the need for additional modifications.

A Professional Approach to Used Electronics and Sensors

For components like lambda sensors, a conscious approach to selecting used electronics is key. Proper identification by OEM number, hardware and software compatibility, and correct installation procedures allow for safe use of used components, maintaining near-factory functionality. A detailed discussion on this topic, along with practical examples and tips for selecting sensors, can be found in the article Used Automotive Electronics – How to Consciously Choose Used ECUs and Sensors.

Expanding Service for the BMW Exhaust System

If you are planning a comprehensive repair or upgrade of the engine and exhaust system area in your BMW and require other parts from the same group, such as additional O2 sensors, pre-catalytic converter sensors, or post-catalytic converter sensors, check the available parts in the BMW Lambda Sensors & O2 Sensors category.

Summary

The BMW F80 M3 F82 F83 M4 Lambda Sensor is an original part from the O2 sensor group, designed for precise cooperation with M series power units. This used OEM part helps maintain proper mixture regulation, stable engine operation, and compatibility with factory control unit maps, making it a rational choice for servicing the exhaust system in demanding BMW models.