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Bosch 17111 Oxygen Sensor - Upstream or Upstream Right
| Brand | Bosch 17111 |
|---|---|
| Position | Upstream and Upstream Right |
| Heated | Yes |
| Wiring Harness Length | 16 |
| Terminal Type | Blade |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 5 |
| Grade Type | Standard replacement |
| Connector Shape | Rectangle |
| Connector Gender | Male |
| Terminal Gender | Male |
| Mounting Bracket Included | No |
| Automotive Color / Finish | Steel |
| Automotive Item Weight (lbs) | 0.240304 lb |
| Hex Size (Oxygen Sensor) | 22 mm |
| Housing Material | Metal |
| Length (Sealing Surface To End Of Connector) | 18.2 in |
| Mounting Type | Threaded |
| Overall Length | 19.4 in |
| Oxygen Sensor Type | Wide band |
| Sensor Type | Wide-band |
| Terminal Quantity | 5 |
| Thread Diameter (Oxygen Sensor) | 18 mm |
| Thread Size | 18 |
| Wiring Harness Included | Yes |
| Product line | Actual OE Oxygen Sensor |
| Fits | BMW · 13 vehicles |
Actual OE replacement. Bosch OE-proven design for dependable sensor performance.
Wideband sensor. Delivers precise air-fuel ratio readings across the full lambda range.
Heated design. Fast light-off and optimized heater control for stable operation.
Cross-references 11787848483 for the same application. See all 1.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Bosch Wideband O2 Sensor for BMW M3 and M4
Bosch 17111 is an Actual OE Oxygen Sensor built for precise air-fuel ratio monitoring in wideband applications. It delivers fast, continuous feedback to the ECU for accurate mixture control, stable drivability, and lower emissions.
Compatible With BMW M3 and BMW M4 upstream applications, this Bosch wideband sensor uses OE-style construction and a specific-fit design for direct replacement service. The Bosch Actual OE Oxygen Sensor line reflects Bosch’s long OE development history and focus on accurate sensor output for modern engine management.
Key Features
- Wideband A/F oxygen sensor for continuous lambda measurement
- Heated design for faster light-off and stable operation
- Specific fit with 5-wire configuration
- Rectangle male connector with blade terminals
- Threaded mounting with 18 mm thread diameter and 22 mm hex size
- Wiring harness included with 16 in harness length
- Steel finish and metal housing for OE-style durability
- Bosch part number 17111 for direct identification
Product Details
Bosch 17111 is a wide band oxygen sensor engineered for precise upstream exhaust monitoring. Unlike a switching sensor, this wideband design provides detailed air-fuel ratio data across the full lambda range, helping the ECU maintain accurate control during idle, acceleration, and load changes. It is a direct replacement choice for BMW M3 and BMW M4 applications that call for an Actual OE Oxygen Sensor, including Fits 2015-2019 BMW M3, Upstream; Fits 2015-2018 BMW M3, Upstream; Fits 2015-2019 BMW M4, Upstream; Fits 2020 BMW M4, Upstream Right; and Fits 2019-2020 BMW M2, Upstream Right. This part also cross-references 11787848483 for the same application.
Common Issues This Sensor Can Address
- Fault codes related to air-fuel ratio or oxygen sensor performance
- Rough idle caused by inaccurate upstream mixture feedback
- Reduced fuel economy from incorrect fuel trim control
- Delayed sensor response during warm-up or load changes
- Emissions test failures tied to faulty wideband sensor readings
Installation Notes and Tips
Verify the connector shape, wire count, thread size, and sensor position before installation. This Bosch oxygen sensor uses a threaded mount and a 5-wire harness, so matching the original connector and upstream location is important for proper fitment. Inspect the exhaust bung threads and wiring routing before tightening the sensor to specification.
Quality Assurance
Bosch developed the first wideband A/F oxygen sensor and continues to supply OE-proven sensor technology to the aftermarket. Bosch 17111 is built with fast light-off characteristics, optimized heater control, and robust ceramic construction for consistent operation in demanding thermal conditions.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2021 | BMW | M2 | 3.0L | L6 | Upstream | Actual OE Oxygen Sensor |
| 2020 | BMW | M2 | 3.0L | L6 | Upstream Right | Actual OE Oxygen Sensor |
| 2020 | BMW | M4 | 3.0L | L6 | Upstream Right | Actual OE Oxygen Sensor |
| 2019 | BMW | M2 | 3.0L | L6 | Upstream Right | Actual OE Oxygen Sensor |
| 2019 | BMW | M4 | 3.0L | L6 | Upstream | Cylinder(s) 4, 5, and 6; Actual OE Oxygen Sensor |
| 2018 | BMW | M3 | 3.0L | L6 | Upstream | Cylinder(s) 4, 5, and 6; Actual OE Oxygen Sensor |
| 2018 | BMW | M4 | 3.0L | L6 | Upstream | Cylinder(s) 4, 5, and 6; Actual OE Oxygen Sensor |
| 2017 | BMW | M3 | 3.0L | L6 | Upstream | Cylinder(s) 4, 5, and 6; Actual OE Oxygen Sensor |
| 2017 | BMW | M4 | 3.0L | L6 | Upstream | Cylinder(s) 4, 5, and 6; Actual OE Oxygen Sensor |
| 2016 | BMW | M3 | 3.0L | L6 | Upstream | Cylinder(s) 4, 5, and 6; Actual OE Oxygen Sensor |
| 2016 | BMW | M4 | 3.0L | L6 | Upstream | Cylinder(s) 4, 5, and 6; Actual OE Oxygen Sensor |
| 2015 | BMW | M3 | 3.0L | L6 | Upstream | Cylinder(s) 4, 5, and 6; Actual OE Oxygen Sensor |
| 2015 | BMW | M4 | 3.0L | L6 | Upstream | Cylinder(s) 4, 5, and 6; Actual OE Oxygen Sensor |
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