Bosch 16792 Oxygen Sensor - Downstream

Bosch OE Oxygen Sensor for BMW Downstream Use

Bosch 16792 is an Actual OE Oxygen Sensor built for precise air-fuel-ratio feedback to the ECU. It is a narrow-band heated sensor with a threaded metal housing, specific-fit connector, and integrated wiring harness for direct replacement service on select BMW applications.

Key Features

• Actual OE Oxygen Sensor from Bosch Actual OE Oxygen Sensor line
• Narrow-band heated design for closed-loop fuel control
• Specific fit with round connector, 4-wire layout, and pin terminals
• Threaded mounting with 18 mm thread diameter and 22 mm hex size
• Wiring harness included with 14.8 in harness length and 17 in sealing-surface-to-connector length
• Steel finish and metal housing for high-temperature and vibration exposure

Detailed Description

Bosch 16792 uses Bosch’s OE sensor development experience to deliver stable oxygen-content feedback under changing exhaust temperatures and load conditions. The switching-type narrow-band design supports accurate lambda control, faster light-off, and quicker closed-loop operation, which helps the engine management system maintain consistent combustion control and emissions performance. This part cross-references Bosch 16792 for the same application.

Compatible With BMW M6 Gran Coupe downstream applications from 2014-2019, BMW M6 downstream applications from 2012-2018, BMW M5 downstream applications from 2013-2016, and BMW Z4 downstream applications from 2006-2008 for cylinders 4, 5, and 6. Bosch 16792 is a direct OE-style replacement for vehicles that require a threaded, heated narrow-band oxygen sensor with the specified connector and harness configuration.

What This Sensor Helps Address

• Fault codes related to oxygen sensor response or heater circuit performance
• Rough idle or inconsistent fuel trim caused by inaccurate exhaust feedback
• Reduced emissions performance from delayed closed-loop operation
• Driveability issues tied to unstable air-fuel ratio control
• Downstream sensor replacement needs on BMW M5, M6, M6 Gran Coupe, and Z4 applications

Installation Notes and Tips

Verify the connector shape, wire count, thread size, and downstream location before installation. Use the 22 mm hex size and 18 mm thread specification to confirm service-tool compatibility, and inspect the exhaust bung threads for damage or contamination before threading in the sensor. Bosch 16792 is a specific-fit part, so match the vehicle application and cylinder-position notes exactly before replacement.

Quality Assurance

Bosch backs this oxygen sensor with more than five decades of OE development experience. The sensor uses ceramic elements, controlled heater operation, and high-temperature-resistant materials to maintain consistent performance in demanding exhaust environments.