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Bosch 17119 Oxygen Sensor - Upstream or Upstream Left
| Brand | Bosch 17119 |
|---|---|
| Position | Upstream and Upstream Left |
| Heated | Yes |
| Wiring Harness Length | 31.1 |
| 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) | 33.3 in |
| Mounting Type | Threaded |
| Overall Length | 34.4 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. Standard replacement fit with OE-proven Bosch engineering.
Wideband sensor. Provides precise air-fuel ratio readings for accurate engine management.
Heated design. Optimized heater control helps maintain reliable performance.
Cross-references 11787848482 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 Part Number 17119 is an Actual OE Oxygen Sensor built as a wideband air-fuel sensor for precise mixture monitoring. It provides the ECU with continuous, high-resolution air-fuel ratio data for accurate control across the full lambda range.
Key Features
- Wideband A/F oxygen sensor with heated operation
- Specific fit design for direct application matching
- 5-wire configuration with blade terminals and rectangular male connector
- Threaded mounting with 18 mm thread diameter and 22 mm hex size
- 31.1 in wiring harness length and included harness assembly
- Steel finish with metal housing for OE-style durability
- Bosch Part Number 17119 for catalog and service reference
Product Details
As part of Bosch’s Actual OE Oxygen Sensor line, this wideband sensor reflects Bosch’s long history in OE engine management development. The planar pump-cell design used in Bosch wideband sensors delivers fast response and stable readings, helping the engine control module manage fuel delivery more precisely during load changes, cold starts, and normal driving. This Bosch 17119 oxygen sensor is a direct replacement for select BMW applications, including 2015-2019 BMW M4 upstream, 2015-2018 BMW M3 upstream, 2019-2020 BMW M2 upstream left, 2020 BMW M4 upstream left, and 2021 BMW M2 upstream.
This part cross-references BMW 11787848482 for the same application.
What This Sensor Helps Address
- Check engine light related to oxygen sensor performance
- Incorrect air-fuel ratio readings from a worn wideband sensor
- Rough idle or drivability issues tied to mixture control
- Reduced fuel economy caused by inaccurate exhaust feedback
- Emissions test failures linked to sensor response or signal quality
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 specific-fit configuration, so it should be matched to the exact upstream location listed for your BMW M3, M4, or M2 application. Inspect the harness routing and connector condition during replacement to help ensure a clean OE-style installation.
Quality Assurance
Bosch supplies this sensor as an OE-grade replacement backed by decades of oxygen sensor development and production experience. The design uses robust ceramic construction and optimized heater control for stable operation under thermal cycling and rapid engine load changes.
| 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 Left | Actual OE Oxygen Sensor |
| 2020 | BMW | M4 | 3.0L | L6 | Upstream Left | Actual OE Oxygen Sensor |
| 2019 | BMW | M2 | 3.0L | L6 | Upstream Left | Actual OE Oxygen Sensor |
| 2019 | BMW | M4 | 3.0L | L6 | Upstream | Cylinder(s) 1, 2, and 3; Actual OE Oxygen Sensor |
| 2018 | BMW | M3 | 3.0L | L6 | Upstream | Cylinder(s) 1, 2, and 3; Actual OE Oxygen Sensor |
| 2018 | BMW | M4 | 3.0L | L6 | Upstream | Cylinder(s) 1, 2, and 3; Actual OE Oxygen Sensor |
| 2017 | BMW | M3 | 3.0L | L6 | Upstream | Cylinder(s) 1, 2, and 3; Actual OE Oxygen Sensor |
| 2017 | BMW | M4 | 3.0L | L6 | Upstream | Cylinder(s) 1, 2, and 3; Actual OE Oxygen Sensor |
| 2016 | BMW | M3 | 3.0L | L6 | Upstream | Cylinder(s) 1, 2, and 3; Actual OE Oxygen Sensor |
| 2016 | BMW | M4 | 3.0L | L6 | Upstream | Cylinder(s) 1, 2, and 3; Actual OE Oxygen Sensor |
| 2015 | BMW | M3 | 3.0L | L6 | Upstream | Cylinder(s) 1, 2, and 3; Actual OE Oxygen Sensor |
| 2015 | BMW | M4 | 3.0L | L6 | Upstream | Cylinder(s) 1, 2, and 3; Actual OE Oxygen Sensor |
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