Bosch 16794 Oxygen Sensor - Downstream Right

Bosch Actual OE Oxygen Sensor for BMW

Bosch Part Number 16794 is an Actual OE Oxygen Sensor built for precise air-fuel-ratio feedback to the ECU. It supports stable combustion control and emissions management for select BMW applications, including downstream right service positions on 2006-2010 BMW 550i, 2006-2010 BMW 650i, 2006-2008 BMW 750i, and 2006-2008 BMW 750Li.

Key Features

• Specific-fit narrow-band heated oxygen sensor
• Downstream right application for select BMW V8 models
• 4-wire design with round female connector
• Threaded mounting with 18 mm thread diameter and 22 mm hex size
• Wiring harness included for direct replacement use
• Metal housing and high-temperature-resistant construction
• Bosch Part Number 16794 for OE-style service replacement

OE-Style Sensor Performance

The Bosch Actual OE Oxygen Sensor line draws on Bosch’s long OE development history, starting with the original thimble sensor and later advancing to planar narrowband designs. This sensor uses a heated narrow-band design with optimized heater control and ceramic sensing elements to deliver accurate lambda feedback and quicker closed-loop operation under changing exhaust temperatures. Bosch 16794 is a direct-fit replacement for the downstream right sensor location on BMW 550i, BMW 650i, BMW 750i, and BMW 750Li models listed in the fitment data.

This part cross-references Bosch OE-style service references for the same application.

Common Symptoms This Sensor Can Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel ratio readings at the ECU
• Rough or unstable combustion control during closed-loop operation
• Emissions test failure tied to downstream sensor faults
• Slow sensor response from heat-related wear or contamination

Installation Notes

Fits 2006-2010 BMW 550i, downstream right. Fits 2006-2010 BMW 650i, downstream right. Fits 2006-2008 BMW 750i, downstream right. Fits 2006-2008 BMW 750Li, downstream right. Confirm the connector shape, wire count, thread size, and sensor location before installation. Use the threaded mounting point and proper oxygen sensor service tools to avoid damaging the exhaust bung or sensor body.

Quality Assurance

Bosch supplies OE-proven oxygen sensor technology to the aftermarket, using durable materials and heater control strategies developed for demanding thermal and vibration conditions. Bosch Part Number 16794 is built as an Actual OE replacement for consistent sensor output and dependable service in the listed BMW applications.