{"product_id":"bosch-15681-oxygen-sensor","title":"Bosch 15681 Oxygen Sensor - Downstream or Downstream Rear","description":"\u003ch2\u003eOverview of Bosch Actual OE Oxygen Sensor 15681\u003c\/h2\u003e\u003cp\u003eThe Bosch Actual OE Oxygen Sensor 15681 is designed specifically for select BMW models, including the 325Ci, 325i, 330Ci, 330i, 525i, 530i, and X3. This narrow-band heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to the vehicle's engine management system.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSpecific fit for BMW 325Ci, 325i, 330Ci, 330i, 525i, 530i, and X3 models\u003c\/li\u003e\n\u003cli\u003eHeated narrow-band oxygen sensor for improved response time\u003c\/li\u003e\n\u003cli\u003eThreaded mounting type with 18 mm thread diameter and 22 mm hex size\u003c\/li\u003e\n\u003cli\u003eIncludes a 35.9-inch wiring harness with 4 male blade terminals and an oblong male connector\u003c\/li\u003e\n\u003cli\u003eConstructed with durable metal housing finished in steel\u003c\/li\u003e\n\u003cli\u003eStandard replacement grade for reliable emissions control\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eAbout the Bosch Actual OE Oxygen Sensor Product Line\u003c\/h2\u003e\u003cp\u003eThe Bosch Actual OE Oxygen Sensor line is engineered to meet original equipment specifications, providing a direct replacement for factory-installed sensors. This product line focuses on delivering precise sensor readings and durability, ensuring compatibility and performance consistent with the original part. The 15681 sensor maintains these standards, offering a reliable solution for BMW vehicles requiring a specific fit oxygen sensor.\u003c\/p\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis Bosch oxygen sensor features a narrow-band heated design, which allows it to reach operating temperature quickly for accurate emissions monitoring. The sensor’s metal housing and steel finish provide durability under harsh engine conditions. It includes a 35.9-inch wiring harness with four wires and blade terminals, designed for a specific fit with BMW models listed. The threaded mounting type with an 18 mm diameter and 22 mm hex size ensures secure installation. The oblong male connector and four male terminals facilitate a precise electrical connection, maintaining signal integrity for the engine control unit.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores proper air-fuel ratio readings for BMW 325Ci, 325i, 330Ci, 330i, 525i, 530i, and X3 models\u003c\/li\u003e\n\u003cli\u003eResolves check engine light triggers related to oxygen sensor faults\u003c\/li\u003e\n\u003cli\u003eImproves fuel efficiency by providing accurate emissions data\u003c\/li\u003e\n\u003cli\u003eReduces harmful exhaust emissions by ensuring correct sensor operation\u003c\/li\u003e\n\u003cli\u003ePrevents engine performance issues caused by faulty oxygen sensors\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the vehicle is compatible with part number 15681 before installation\u003c\/li\u003e\n\u003cli\u003eUse a 22 mm oxygen sensor socket for removal and installation\u003c\/li\u003e\n\u003cli\u003eVerify the wiring harness length and connector type match the vehicle’s factory sensor\u003c\/li\u003e\n\u003cli\u003eDo not overtighten the sensor; torque to manufacturer specifications\u003c\/li\u003e\n\u003cli\u003eInspect the wiring and connector for damage before installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eThe Bosch Actual OE Oxygen Sensor 15681 is manufactured to meet strict quality standards, ensuring reliable performance and durability. Bosch provides a standard replacement grade sensor designed to match original equipment specifications. While specific warranty details may vary, Bosch products typically come with a limited warranty covering defects in materials and workmanship.\u003c\/p\u003e","brand":"Bosch","offers":[{"title":"Default Title","offer_id":44520554889397,"sku":"BBHK-15681","price":110.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/BS_15681_Fro.jpg?v=1775059442","url":"https:\/\/www.partcatalog.com\/products\/bosch-15681-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}