BMW E60 E87 E90 Exhaust Lambda Probe Pre Cat Bank 2 B2 S1 7558073

BMW E60 E87 E90 Lambda Sensor 7558073 is an original part from the lambda sensors and O2 sensors category, designed for the exhaust systems of BMW E60, E87, and E90 models. A used OEM sensor ensures proper cooperation with the factory engine control unit, stable mixture control, and correct operation of the injection system. This is a practical solution for users looking for a proven component at a reasonable price, while maintaining factory parameters.

Specifications and technical data

• SKU: 7558073
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 11787558073
• Substitutable numbers: 11787558073, 7558073
• Category: Oxygen Sensors

Technical Characteristics of the BMW Lambda Sensor

The lambda sensor in BMW E60, E87, and E90 series is responsible for precise measurement of oxygen content in exhaust gases, allowing the engine control unit to adjust the fuel dose in real-time. Thanks to this, the fuel system maintains an optimal fuel-air ratio, and the engine runs stably under various load and temperature conditions. The original BMW design ensures proper fit of the thread, cable length, and electrical connector to the specific wiring harness in each model.

The element in this series is designed for operation at high temperatures and in the exhaust environment, which is why the materials used are resistant to corrosion and thermal fluctuations. Maintaining a proper signal from the sensor directly impacts the engine's running smoothness, throttle response, and idle speed stability.

Benefits of Using an Original BMW Lambda Sensor

Using an original lambda sensor from this reference translates into a number of practical operational benefits:

• Better ECU Cooperation – the engine control unit receives a signal with parameters consistent with factory specifications.
• Stable fuel-air mixture regulation – reduction of issues such as jerking, fluctuating RPMs, or increased fuel consumption.
• Appropriate sensor characteristics – matched to the injection maps used in BMW E60, E87, E90 units.
• Correct mechanical and electrical fit – no need for wiring modifications or adapters.

Thanks to this, replacing it with an original part from the lambda sensors and O2 sensors category allows for restoring correct engine operating parameters without interfering with the software or installation.

Condition, Origin, and Practical Application

The presented BMW lambda sensor is a used part obtained from disassembly. Such components are often chosen by users seeking a reasonable compromise between repair cost and maintaining factory specifications. A used OEM sensor allows for economical repair of the exhaust system, especially in older E60, E87, and E90 models, where a full replacement with a new part from an authorized dealer can be cost-prohibitive.

Before installation, standard service procedures are recommended: checking the thread in the manifold or exhaust pipe, inspecting the wiring harness, and proper tightening using the correct lambda sensor wrench. A correctly installed sensor restores accurate exhaust gas composition readings and enables the control unit to effectively correct the fuel dose.

Selection by OEM Number and Technical Support

The selection of a lambda sensor for a specific BMW vehicle should always be based on the OEM number and data from the manufacturer's catalog. If you have any doubts, it is worth consulting the guide on used automotive electronics and sensors, which discusses selection by numbers, compatibility, and installation issues – details can be found in the article “Used Automotive Electronics Onboard – Why Choose Second-Hand ECUs and Sensors?”.

If you want to learn more about the specifics of the used parts market, quality differences, and common myths about such components, the guide “Used Car Parts: Myths and Facts You Need to Know” will also be helpful, discussing practical aspects of purchasing used components, including sensors from the lambda sensors and O2 sensors category.

Other BMW Lambda Sensors and O2 Sensors

If you are also looking for other elements from the lambda sensors and O2 sensors category dedicated to this brand, check out the BMW lambda sensors and O2 sensors available in our assortment to select the component best suited to the specific engine version and year of your car.