Bosch 16058 Oxygen Sensor - Downstream

Bosch 16058 Oxygen Sensor for BMW 528i

Bosch 16058 is an actual OE narrow-band heated oxygen sensor built for precise air-fuel-ratio feedback to the ECU. It is a direct-fit replacement for the downstream position on the 2011 BMW 528i, including cylinder(s) 4, 5, and 6.

Key Features

• Specific-fit oxygen sensor for the downstream location
• Narrow-band heated design for faster closed-loop operation
• 4-wire configuration with blade terminals and rectangular connector
• Threaded mounting with 18 mm thread diameter and 22 mm hex size
• Wiring harness included for a direct replacement setup
• Steel finish with metal housing for high-temperature service
• Bosch Actual OE Oxygen Sensor line built from OE development experience

Product Details

This Bosch oxygen sensor uses a switching-type narrow-band design to measure exhaust oxygen content and send accurate feedback to the engine control unit. That signal helps the ECU maintain stable combustion control, support emissions performance, and respond consistently across changing operating conditions. Bosch developed this sensor line from its original OE oxygen sensor technology and later planar narrowband designs, focusing on faster light-off, improved lambda accuracy, and quicker closed-loop operation. Bosch 16058 is a strong OE-style replacement for the 2011 BMW 528i downstream sensor location.

This part cross-references 11787603022 for the same application.

What It Helps Address

• Check engine light related to downstream oxygen sensor performance
• Incorrect air-fuel ratio feedback to the ECU
• Rough or unstable combustion control during closed-loop operation
• Emissions test failures tied to sensor response issues
• Slow sensor switching or degraded exhaust monitoring on a BMW 528i

Installation Notes and Tips

Fits 2011 BMW 528i, downstream. Verify the connector shape, 4-wire layout, and threaded mounting before installation. The sensor uses an 18 mm thread size and 22 mm hex, so the correct oxygen sensor socket or wrench is recommended. Confirm the downstream location and cylinder application noted for the vehicle before replacing the original unit.

Quality Assurance

Bosch backs this oxygen sensor with more than five decades of OE development in oxygen sensing technology. The Actual OE Oxygen Sensor line is engineered to deliver OE-proven performance, accurate signal output, and durable operation under heat and vibration.