Oxygen Sensor for BMW 1 Series, 3 Series, 5 Series, X3, X5

Upgrade your BMW’s engine management with the IWOKPHD Oxygen Sensor, a precise, direct-fit replacement designed to restore accurate air-fuel measurements across a broad range of BMW models and select Mercedes-Benz applications. This heated, magnetic-induction O2 sensor feeds real-time Lambda data to the engine control unit, helping you maintain optimal combustion, improve fuel efficiency, and reduce harmful emissions. OEM-referenced compatibility includes BMW 1 Series, 3 Series, 5 Series, X3, X5, Z4 and a wide array of related model years and configurations, ensuring a reliable replacement when the original sensor begins to fail or when planning preventive maintenance. OEM numbers included in this listing help verify the correct part for your vehicle: 11787558055, 7558055, 11787557756, 7557756, 17098, 250-25018, 25025018, 0065422718, 17203, 234-5139, 2345139, 24322, 0035427218, 108482, 17 098, 11 78 7 558 055. This sensor is a heating-type unit with magnetic induction, engineered for faster warm-up and stable readings in varied driving conditions. All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

In practical terms, replacing a worn or inaccurate oxygen sensor can revitalize your engine’s performance: smoother idling, quicker throttle response, consistent fuel economy, and cleaner exhaust readings. By delivering precise oxygen-level feedback, it helps the ECU fine-tune the air-fuel ratio in real time, reducing emissions and helping your vehicle meet regulatory expectations without sacrificing performance. This part is a versatile solution for many BMW models and select Mercedes variants, making it a smart, long-lasting maintenance upgrade.

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Benefits & Tips

• Restores accurate lambda readings for better engine efficiency and more predictable throttle response.
• Supports cleaner combustion, helping to lower emissions and maintain compliance with driving regulations.
• Tip: When replacing, verify part numbers against the OEM listing and original part to ensure a perfect fit. If uncertain, send the Part Number or original product photos to us for quick confirmation—we’ll reply within 24 hours.

Product Specifications

• Brand: IWOKPHD
• Sensor Type: Magnetic Induction
• Type: Heating Type
• Measuring Range: Lambda Oxygen O2 Air Fuel Ratio Sensor
• OEM No.: 11787558055, 7558055, 11787557756, 7557756, 17098, 250-25018, 25025018, 0065422718, 17203, 234-5139, 2345139, 24322, 0035427218, 108482, 17 098, 11 78 7 558 055
• Origin: Mainland China
• Warranty: 2 years (Replacement Warranty)
• Application notes: Compatible with a broad range of BMW models including 1 Series M, 125i, 128i, 130i, 135i, 323i, 325i, 325xi, 328i, 328xi, 330i, 330xi, 335i, 335is, 335xi, 525i, 525xi, 528i, 528xi, 530i, 530xi, X3 (2007–2011), X5 (2007–2010), Z4 (2006–2016); also listed for Mercedes-Benz C180, C200, C250, C63 AMG, SLK250 (2012–2015).

Package includes:

• 1 x Oxygen Sensor

Warnings/Reminders

• Please check the picture and the part number carefully to make sure you bought the right 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 to confirm before ordering.
• The only way to be 100% sure the part will fit your vehicle is to check your original part. We will check for you and reply within 24 hours.

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

To ensure smooth processing and delivery, all items are dispatched within 2 working days after payment is confirmed. If you have questions about compatibility or installation, our team responds within 24 hours, excluding weekends and holidays. We’re here to help you get the right part the first time.