BMW E60 E63 E87 E90 Lambda Probe Exhaust Oxygen Sensor 7791600

BMW E60 E87 E90 F10 Lambda Sensor 7791600 is an original part from the Lambda Sensors and O2 Sensors category, designed for precise monitoring of the air-fuel mixture composition in selected BMW models. This used OEM part ensures factory fit to the exhaust system and proper interaction with the engine control unit, leading to stable engine operation and correct exhaust emission control.

Specifications and technical data

• SKU: 7791600
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7790116
• Substitutable numbers: 13627791600, 7791600, 13627790116, 7790116, 0281001018
• Category: Oxygen Sensors

Intended Use and Compatibility

The BMW Lambda Sensor is designed for use in popular E60, E87, E90, and F10 series models, where it is responsible for real-time measurement of oxygen content in exhaust gases. This allows the engine control unit to adjust the fuel dosage accordingly, maintaining the mixture within the optimal range for power, economy, and emissions.

The part comes from the BMW OE line, which means it retains the original geometry, the correct connector type, and operating characteristics consistent with factory control unit maps. The presence of dedicated interchangeable numbers facilitates selection for specific engine configurations and vehicle years.

Function in the Exhaust System and Engine Control

The lambda sensor with this reference number operates as an oxygen sensor in exhaust gases, generating a voltage or current signal (depending on the version) that is interpreted by the ECU. Based on this, the control unit:

• corrects the fuel dosage in real-time,
• stabilizes idle speed and throttle response,
• supports proper catalytic converter operation,
• limits excessive fuel consumption while maintaining adequate dynamics.

A functional O2 sensor is crucial for maintaining correct combustion parameters, and its replacement when symptoms such as increased fuel consumption, fluctuating idle speed, or air-fuel mixture errors occur is one of the basic maintenance tasks.

Product Characteristics and Benefits of Use

The offered BMW OE Lambda Sensor is a part from the original exhaust system, ensuring:

• factory fit to the thread and socket in the manifold or exhaust pipe,
• electrical compatibility with the vehicle's wiring harness,
• correct signal characteristics for the engine control unit,
• stable operation within typical temperature and load ranges.

Using an original O2 sensor minimizes the risk of adaptation problems, control unit errors, and incorrect fuel corrections that can occur with low-quality parts. This solution is particularly recommended for diagnosing exhaust emission issues, failed technical inspections, or recurring mixture errors.

Condition, Selection, and Installation

The part is offered in used condition, allowing for economical repair while maintaining original BMW specifications. Before installation, it is recommended to verify compatibility by OEM number and reference numbers, as well as to check the electrical system and the exhaust system's airtightness.

When replacing the lambda sensor, it is worth paying attention to:

• correct tightening in the socket using the appropriate wrench,
• no strain on the cable and connector,
• cleanliness of the plug and proper latching of the clips,
• performing adaptation or clearing errors in the control unit after installation.

More BMW Lambda Sensors and Technical Knowledge

If you are looking for other BMW Lambda Sensors and O2 Sensors compatible with various models and engine versions, check out our dedicated category: BMW Lambda Sensors and O2 Sensors. There you will find a wide selection of original parts to help you choose the right sensor for a specific VIN.

Are you planning a more extensive engine electronics replacement or want to better understand how to safely use used sensors and modules? Check out Global Parts' practical guide: Used Car Electronics – Why Choose Second-Hand ECUs and Sensors, where we discuss VIN/OEM selection, compatibility issues, and the most common questions related to installation.