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Bosch 16142 Oxygen Sensor - Downstream, Downstream Left or Upstream
| Brand | Bosch 16142 |
|---|---|
| Position | Downstream, Downstream Left, and Upstream |
| Wiring Harness Length | 24.3 |
| Terminal Type | Blade |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Grade Type | Standard replacement |
| Connector Shape | Rectangle |
| Terminal Quantity | 4 |
| Connector Gender | Male |
| Terminal Gender | Male |
| Overall Length | 27.7 |
| Mounting Type | Threaded |
| Automotive Color / Finish | Steel |
| Automotive Item Weight (lbs) | 0.242508 lb |
| Heated (Oxygen Sensor) | Yes |
| Hex Size (Oxygen Sensor) | 22 mm |
| Housing Material | Metal |
| Length (Sealing Surface To End Of Connector) | 26.5 in |
| Mounting Bracket Included | No |
| Oxygen Sensor Type | Narrow-band heated |
| Sensor Type | Narrow-band |
| Thread Diameter (Oxygen Sensor) | 18 mm |
| Thread Size | 18 |
| Wiring Harness Included | Yes |
| Product line | Actual OE Oxygen Sensor |
| Fits | BMW · 13 vehicles |
OE direct replacement. Bosch Actual OE oxygen sensor matches standard replacement needs with OE-proven quality.
Narrow-band heated design. Delivers faster light-off and quicker closed-loop operation for stable combustion control.
Durable metal housing. Built with high-temperature-resistant materials for consistent performance under harsh conditions.
Cross-references 11787848486 for the same application. See all 1.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Bosch Actual OE Oxygen Sensor 16142
Bosch 16142 is an Actual OE Oxygen Sensor built for precise air-fuel-ratio feedback to the ECU. It uses a narrow-band heated switching design to support stable combustion control and emissions management across changing operating conditions.
Compatible With BMW M2, BMW M3, and BMW M4 applications listed below, this Bosch oxygen sensor follows OE-style fitment and connector design for direct replacement service. The Bosch Actual OE Oxygen Sensor line draws on Bosch’s long OE development history, including faster sensor response, improved lambda accuracy, and reliable closed-loop operation.
- Brand: Bosch Actual OE Oxygen Sensor
- Part number: 16142
- Narrow-band heated oxygen sensor
- Specific fit with threaded mounting
- 4-wire design with rectangular male connector
- Wiring harness included
- 18 mm thread diameter and 22 mm hex size
- Metal housing for high-temperature and vibration resistance
Detailed Product Overview
This Bosch oxygen sensor measures exhaust oxygen content and sends the signal needed for fuel-trim correction. The switching-type narrow-band design is suited for OE replacement service where accurate feedback, heater control, and consistent signal behavior matter. Bosch 16142 is a direct-fit sensor for BMW M2, BMW M3, and BMW M4 applications that require the listed upstream or downstream positions.
This part cross-references Bosch OE application 11787848486 for the same application.
Vehicle Fitment
- Fits 2021 BMW M2, Upstream, Actual OE Oxygen Sensor
- Fits 2019-2020 BMW M2, Downstream Left, Actual OE Oxygen Sensor
- Fits 2020 BMW M4, Downstream Left, Actual OE Oxygen Sensor
- Fits 2015-2019 BMW M4, Downstream, Cylinder(s) 1, 2, and 3; Actual OE Oxygen Sensor
- Fits 2015-2018 BMW M3, Downstream, Cylinder(s) 1, 2, and 3; Actual OE Oxygen Sensor
What This Sensor Helps Address
- Check engine light related to oxygen sensor signal faults
- Rough idle or unstable fuel control from inaccurate exhaust feedback
- Reduced fuel economy caused by incorrect air-fuel ratio correction
- Emissions test failures tied to sensor response or heater issues
- Delayed closed-loop operation after startup
Installation Notes and Tips
Confirm the connector shape, wire count, thread size, and sensor position before installation. This Bosch 16142 sensor uses a threaded mount and a 4-wire rectangular male connector with a 24.3-inch wiring harness length. Verify the upstream or downstream location on the BMW M2, M3, or M4 application before replacement, and inspect the exhaust bung threads and connector routing during service.
Quality Assurance
Bosch has more than five decades of OE oxygen sensor development behind this Actual OE line. The sensor uses advanced ceramic elements, controlled heater operation, and high-temperature-resistant materials to maintain consistent performance under thermal and vibration load.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2021 | BMW | M2 | 3.0L | L6 | Upstream | Actual OE Oxygen Sensor |
| 2020 | BMW | M2 | 3.0L | L6 | Downstream Left | Actual OE Oxygen Sensor |
| 2020 | BMW | M4 | 3.0L | L6 | Downstream Left | Actual OE Oxygen Sensor |
| 2019 | BMW | M2 | 3.0L | L6 | Downstream Left | Actual OE Oxygen Sensor |
| 2019 | BMW | M4 | 3.0L | L6 | Downstream | Cylinder(s) 1, 2, and 3; Actual OE Oxygen Sensor |
| 2018 | BMW | M3 | 3.0L | L6 | Downstream | Cylinder(s) 1, 2, and 3; Actual OE Oxygen Sensor |
| 2018 | BMW | M4 | 3.0L | L6 | Downstream | Cylinder(s) 1, 2, and 3; Actual OE Oxygen Sensor |
| 2017 | BMW | M3 | 3.0L | L6 | Downstream | Cylinder(s) 1, 2, and 3; Actual OE Oxygen Sensor |
| 2017 | BMW | M4 | 3.0L | L6 | Downstream | Cylinder(s) 1, 2, and 3; Actual OE Oxygen Sensor |
| 2016 | BMW | M3 | 3.0L | L6 | Downstream | Cylinder(s) 1, 2, and 3; Actual OE Oxygen Sensor |
| 2016 | BMW | M4 | 3.0L | L6 | Downstream | Cylinder(s) 1, 2, and 3; Actual OE Oxygen Sensor |
| 2015 | BMW | M3 | 3.0L | L6 | Downstream | Cylinder(s) 1, 2, and 3; Actual OE Oxygen Sensor |
| 2015 | BMW | M4 | 3.0L | L6 | Downstream | Cylinder(s) 1, 2, and 3; Actual OE Oxygen Sensor |
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