Air Fuel Ratio Lambda O2 Sensor for BMW 545i 645Ci 745i 745Li X5
The IWOKPHD Air Fuel Ratio Lambda O2 Sensor is a precise 5-wire oxygen sensor designed as a direct-fit replacement for a range of BMW, Audi, Buick, and Volkswagen models. Engineered to monitor the air–fuel mixture with accurate lambda readings, it helps your engine stay in balance, delivering smoother starts, steadier idle, and improved fuel efficiency while reducing emissions.
This sensor uses a heating-type design for fast warm-up, so your engine reaches optimal operating temperature quicker, minimizing fuel rich or lean conditions during cold starts. With OE-like compatibility (OEM numbers listed below), it provides reliable, consistent performance that mirrors the original part. The sensor is a magnetic-induction type element and is built as a robust, long-lasting upgrade that you can trust on daily driving or spirited weekend use. All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.
Compatibility is broad but specific. This is a direct-fit replacement for the following models and applications, ensuring you get a reliable, exact match when you order:
Applications include:
- Audi A8 (2005-2007)
- Audi Allroad (2003)
- BMW 545i (2004-2005)
- BMW 645Ci (2004-2005)
- BMW 745i (2002-2003)
- BMW 745Li (2002-2003)
- BMW X5 (2004-2006)
- Buick Allure (2005-2008)
- Buick Lacrosse (2005-2008)
- Buick Rendezvous (2004-2006)
- Volkswagen Touareg (2004-2006)
OEM numbers associated with this sensor include: 11787530282, 11787512975, 11787512976, 11787512983, 11787516149, 11787530735, 250-25002, 25025002, 7512975, 12574662, 0258007142, 0258007143, 5S5608, SU7111, 0258007273, 0 258 007 273, 11 78 7 530 282. This breadth of part numbers confirms compatibility across multiple model years and trim levels.
Manufacturer origin is Mainland China, and the unit is thoroughly tested before shipment to ensure reliable performance out of the box. In addition to the 2-year CE warranty noted above, this product carries a 1-year replacement warranty from the seller.
Product specifications
- Sensor type: Magnetic Induction
- Electrical: 5-wire
- Heating type: Heating Type
- Applications: See compatible models above (BMW, Audi, Buick, VW)
- OEM numbers: 11787530282, 11787512975, 11787512976, 11787512983, 11787516149, 11787530735, 250-25002, 25025002, 7512975, 12574662, 0258007142, 0258007143, 5S5608, SU7111, 0258007273, 0 258 007 273, 11 78 7 530 282
- Measuring range / resolution: Matches listed OEM numbers (engineered for precise lambda sensing)
- Origin: Mainland China
- Warranty: 1-year replacement warranty (seller) + CE-certified with a two-year InterCyprus warranty
Package includes:
- 1 x Oxygen Sensor
Warnings / reminders
Please check the product picture and fitment before ordering. If you are not sure about compatibility, contact us before you order to avoid non-returnable situations. We will replace malfunctioning items upon receipt, and items must be returned in original packaging. Shipping times may vary by season and location.
Language support: Information and service are provided in English where available.
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