BMW F80 M3 F82 F83 M4 Lambda Probe Oxygen Monitor Sensor 7848483

BMW F80 M3 F82 F83 M4 Lambda Sensor is an original part from the Lambda Sensors and O2 Sensors category, designed for sporty BMW M series models. A used OEM component helps maintain factory engine operating parameters, a stable air-fuel mixture, and proper interaction with the engine control system. This is a practical solution for users seeking a proven sensor that complies with factory specifications.

Specifications and technical data

• SKU: 7848483
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7848483
• Substitutable numbers: 11787848483, 7848483
• Category: Oxygen Sensors

Purpose and Role of the Lambda Sensor in BMW M3 / M4

The BMW F80 M3 F82 F83 M4 Lambda Sensor is responsible for precisely measuring oxygen content in exhaust gases, enabling the engine control unit to make real-time fuel dose adjustments. In the powerful BMW M3 and M4 engines, this is crucial for:

• maintaining stable power and torque across the entire RPM range,
• reducing fuel consumption while preserving dynamic performance,
• ensuring proper catalytic converter operation and compliance with emission standards,
• eliminating mixture-related errors (too lean / too rich).

By maintaining the original signal characteristics, the sensor works with the original control unit software without requiring additional modifications.

Advantages of Using an Original BMW Lambda Sensor

Choosing an original sensor from the Lambda Sensors and O2 Sensors group ensures compatibility with the factory electrical system and engine operating parameters. Key benefits include:

• proper fit for the wiring harness and mounting thread,
• stable voltage signal transmitted to the engine control unit,
• preservation of the manufacturer-specified sensor response time,
• reduced risk of diagnostic errors after installation.

This solution is particularly important in high-performance vehicles where the accuracy of exhaust parameter readings directly impacts engine safety.

Condition, Verification, and Preparation for Installation

The offered part is used, allowing for an economical restoration of the exhaust control system's functionality while maintaining original BMW specifications. Each sensor undergoes selection based on compliance with manufacturer markings and visual inspection of connectors and wiring, which minimizes the risk of installation issues.

Before installation, it is recommended to:

• verify compatibility with the specific engine version using the OEM number,
• inspect the condition of the thread in the manifold / exhaust pipe,
• use appropriate mounting paste designed for lambda sensors (free of electrically conductive components).

This approach facilitates seamless installation and correct sensor operation from the first start.

Selection by OEM and Benefits of Used Electronics

To select the correct sensor for a specific BMW M3 or M4 configuration, it is advisable to use the OEM part number and interchangeable numbers assigned to this model. This helps avoid issues with incomplete compatibility, differences in cable length, or connector type.

If you want to learn more about how to consciously choose used sensors and control modules, check out our guide: used automotive electronics – why choose proven used ECUs and sensors. You will find practical tips on selection by VIN/OEM, compatibility issues, and installation.

Other BMW Lambda Sensors and O2 Sensors

If you are also looking for other BMW Lambda Sensors and O2 Sensors for your car, check out our dedicated category: BMW Lambda Sensors and O2 Sensors. Using filters by brand and model, you can easily narrow down the offer to elements that fit your specific vehicle version.