Bosch 15167 Oxygen Sensor - Downstream

Bosch Actual OE Oxygen Sensor for BMW

Bosch 15167 is a specific-fit, narrow-band heated oxygen sensor for downstream applications on select BMW models. It provides precise air-fuel-ratio feedback to the ECU, helping maintain stable combustion control and lower emissions across changing operating conditions.

Built on Bosch Actual OE Oxygen Sensor engineering, this replacement follows the same OE-focused design approach Bosch has refined since its early oxygen sensor development. For BMW 550i, 750i, X5, X6, and Z4 applications, Bosch 15167 is a direct-fit solution for restoring accurate downstream sensor performance.

Key Features

• Specific-fit downstream oxygen sensor for select BMW applications
• Narrow-band heated sensor design for faster closed-loop operation
• 4-wire configuration with round female connector
• Threaded mounting with 18 mm thread size and 22 mm hex
• Wiring harness included for a direct replacement layout
• Metal housing and high-temperature-resistant construction
• Bosch part number 15167

How Bosch OE Sensor Design Helps

This Bosch switching-type oxygen sensor uses advanced ceramic elements and controlled heater operation to deliver consistent signal output under heat and vibration. It is built for downstream monitoring on BMW 650i, 550i, 750i, X5, X6, and Z4 platforms where accurate exhaust feedback is needed for emissions control and engine management. Bosch 15167 is also referenced by URO 11787614322 for the same application.

Common Issues This Part Can Address

• Check engine light related to downstream oxygen sensor faults
• Incorrect air-fuel ratio readings reported to the ECU
• Rough combustion control during closed-loop operation
• Emissions test failures tied to sensor performance
• Slow or unstable oxygen sensor response on BMW exhaust systems

Installation Notes and Tips

Fits 2006-2008 BMW Z4, downstream, cylinder(s) 1, 2, and 3; Fits 2009-2015 BMW 750i, downstream; Fits 2009-2015 BMW 750Li, downstream; Fits 2010-2015 BMW 550i GT, downstream; Fits 2010-2015 BMW 750i xDrive, downstream; Fits 2010-2015 BMW 750Li xDrive, downstream; Fits 2010-2017 BMW 550i GT xDrive, downstream; Fits 2011-2016 BMW 550i, downstream; Fits 2011-2016 BMW 550i xDrive, downstream; Fits 2011-2018 BMW X5, downstream; Fits 2012-2018 BMW 650i, downstream; Fits 2012-2018 BMW 650i xDrive, downstream; Fits 2013-2019 BMW 650i Gran Coupe, downstream; Fits 2013-2019 BMW 650i xDrive Gran Coupe, downstream; Fits 2008-2019 BMW X6, downstream.

Verify connector shape, wire count, thread size, and downstream location before installation. Use the existing harness routing and mounting point to avoid strain on the sensor lead, and confirm the exhaust threads are clean before threading the sensor into place.

Quality Assurance

Bosch backs this oxygen sensor with more than five decades of OE development experience. The design uses durable materials, heater control, and OE-proven sensor architecture to support consistent performance in demanding BMW exhaust environments.