Air Fuel Ratio O2 Sensor Lambda for BMW 130i, 125i, 323i, 330i

Upgrade your BMW’s oxygen sensing with the Air Fuel Ratio O2 Sensor Lambda, a direct OEM replacement designed for BMW models including 130i, 125i, 323i, 330i and more. This upstream front-pre-cat sensor uses advanced magnetic induction technology and a heating design to deliver accurate air-fuel measurements, helping your engine run efficiently, reduce emissions, and maintain optimal performance between service intervals.

Main Description

This Lambda/O2 sensor is engineered for BMWs in the 1, 3, 5, 6, 7 series and X line, including 130i, 125i, 323i, 325i, 330i, 523i, 525i, 528i, 530i, as well as Z4 models. It’s a robust, OEM-replacement part built to fit seamlessly with your vehicle’s factory wiring and connector layout, ensuring quick installation and reliable long-term operation.

Key features include:

• Sensor Type: Magnetic Induction
• Heating Type for fast, stable readings in all driving conditions
• Upstream Front Pre-cat Upper positioning to provide accurate oxygen readings for the ECU
• Wide compatibility with BMW part numbers and original equipment references

Note: Please verify the exact part number to ensure a perfect fit for your vehicle. If you’re not sure which item fits your car, share the part number or original product photos for confirmation before ordering. The only way to be 100% sure the part will fit is to check your original component. We respond within 24 hours on inquiries excluding weekends and holidays.

Benefits & Tips

• Restore precise air-fuel measurement to improve fuel efficiency and reduce unnecessary fuel consumption.
• Maintain optimal engine performance and smoother idle by ensuring the ECU receives reliable oxygen data.
• Reduce emissions and help your BMW pass emissions testing by keeping the catalytic converter and exhaust system working correctly.

Practical uses and advice:

• Use as a maintenance replacement for aging sensors to prevent rich or lean fuel trims that can trigger warning lights.
• When replacing, allow the ECU time to relearn adaptive fuel mappings after installation for best results.
• Double-check part numbers (e.g., 11787558073, 0258017099, 17099, 11787540166, 11787540167, and others listed) to ensure exact compatibility with your BMW model and year.

Product Specifications

• Brand Name: IWOKPHD
• Part Numbers / OEM No.: 11787558073, 0258017099, 17099, 11787540166, 11787540167, 11787557223, 17124, 11787558081, 11787558087, 11787589138, 5S9801, 24333, 2133936, 2345138, 17091, 2345137, 15168, 753793, 17102, 24332, SU11254
• Sensor Type: Magnetic Induction
• Type: Heating Type
• Measuring Range: Probe Lambda O2 Oxygen Air Fuel Ratio Sensor
• Origin: Mainland China
• Application: For BMW 1, 3, 5, 6, 7, X1, X3, Z4; models including 130i, 125i, 323i, 325i, 330i, 523i, 525i, 528i, 530i
• Notes: Upstream Front Pre-cat Upper compatibility listed; please confirm part number for exact fit
• Warranty: 2 years (Replacement Warranty)

Warranty & Certifications: All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

Package includes

• 1 pcs

Warnings / Reminders

• Please check the picture and the part number carefully to ensure you have the correct part for your car.
• If you cannot confirm which item fits your car, please send the Part Number or the Original product photos to us for confirmation before ordering.
• The only way to be 100% sure the part will fit your vehicle is to check your original part. We will verify for you and reply within 24 hours.

Warranty: 2 years • Warranty Type: Replacement Warranty

Language support: If available in your language, we provide relevant product details and support through our listing. For any questions, our team responds within 24 hours (except weekends/holidays).

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