22742 Bosch Lambda Sensor/Air Fuel Ratio Sensor 0258017187

Genuine Bosch Lambda Sensor / Air Fuel Ratio Sensor 0258017187

Ensure optimal engine performance and emissions control with the Bosch Lambda Sensor 0258017187 (SKU 22-742). This premium OEM-quality air-fuel ratio sensor is engineered by Bosch, the world's leading oxygen sensor manufacturer and inventor of the lambda sensor. This high-precision wideband sensor monitors exhaust gas composition across the entire air-fuel ratio range to optimize fuel efficiency, reduce emissions, and ensure peak engine performance. Designed for BMW applications, this sensor ensures your vehicle runs efficiently and meets emissions standards.

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Key Features & Benefits

• Genuine Bosch Quality - World's #1 oxygen sensor manufacturer
• Advanced Wideband Technology - Precise air-fuel ratio monitoring across full spectrum
• Superior Accuracy - Measures across entire air-fuel ratio range with enhanced precision
• BMW Application - Designed specifically for BMW vehicles
• Improved Fuel Economy - Helps maintain optimal fuel mixture for better mileage
• Reduced Emissions - Keeps your vehicle running clean and compliant
• Fast Response Time - Quick sensor reaction for optimal engine management
• Enhanced Engine Performance - Prevents rough running and power loss
• Durable Construction - Built to withstand extreme temperatures and harsh conditions
• Direct OEM Replacement - Engineered to meet or exceed original specifications

Technical Specifications

• Bosch Part Number: 0258017187
• Component Type: Wideband Lambda Sensor / Air-Fuel Ratio Sensor
• Primary Application: BMW vehicles
• Sensor Type: Heated wideband oxygen sensor
• Measurement Range: Full air-fuel ratio spectrum
• Weight: 0.2 kg (approximate)

Vehicle Compatibility

This Bosch wideband lambda sensor is compatible with various BMW models. Always verify fitment for your specific vehicle and engine code.

CLICK HERE TO CHECK IF THIS FITS YOUR VEHICLE.

OEM Part Number Cross-Reference

This Bosch lambda sensor replaces the following OEM part numbers:

• 0258017187 (Bosch)
• 11787576673 (BMW)
• 11787595353 (BMW)
• EGO-742 / EG742

Common Symptoms of Faulty Lambda Sensors

• Check engine light illuminated (P0130-P0167, P2195-P2198 codes)
• Poor fuel economy and increased fuel consumption
• Rough idle or engine hesitation
• Failed emissions test
• Loss of power during acceleration
• Engine misfires or stumbling
• Strong fuel odor from exhaust
• Black smoke from exhaust pipe
• Catalytic converter damage or failure
• Reduced engine responsiveness

What Does a Lambda Sensor Do?

The lambda sensor (also known as an oxygen sensor or air-fuel ratio sensor) is a critical component of your vehicle's emissions control and engine management system. Located in the exhaust stream, the lambda sensor measures the amount of unburned oxygen in the exhaust gases and sends this information to the engine control unit (ECU). The ECU uses this data to continuously adjust the air-fuel mixture, ensuring optimal combustion efficiency, maximum fuel economy, and minimal emissions. A properly functioning lambda sensor is essential for maintaining engine performance, passing emissions tests, and protecting the catalytic converter from damage.

Why Choose Genuine Bosch Lambda Sensors?

Bosch invented the lambda sensor in 1976 and continues to set the industry standard for oxygen sensor technology. Genuine Bosch lambda sensors are designed to meet or exceed original equipment specifications, ensuring accurate readings, reliable performance, and long service life. As a world-leading automotive supplier and original equipment manufacturer for BMW and other major automakers, Bosch sensors are built to exacting standards with precision engineering and quality materials. Using genuine Bosch sensors ensures proper fitment, maintains your vehicle's performance and emissions standards, and provides the reliability you need for worry-free driving.

Installation Notes

Professional installation is recommended for best results. Lambda sensor replacement requires proper tools including an oxygen sensor socket, anti-seize compound for the threads, and careful handling to avoid damaging the sensor element. Always install the sensor in the correct location as specified for your vehicle. The sensor connector must be properly secured and protected from heat and moisture. Never use excessive force when installing or removing lambda sensors, as this can damage the threads in the exhaust manifold or pipe. Wideband sensors are particularly sensitive and require careful handling.

Why Choose LM15 Motorsport?

We supply genuine Bosch lambda sensors with fast shipping across Australia. Every sensor is carefully inspected to ensure you receive an authentic Bosch component for reliable engine performance and emissions control. Our team can provide expert advice on sensor selection and installation for your specific vehicle or performance application.

Need help with fitment or installation? Contact our expert team for advice specific to your BMW vehicle's lambda sensor requirements or performance tuning needs.