BDFHYK Oxygen Sensor Upstream O2, Compatible with BMW 328i X1 528i Z4 X3 X4 X5 l4 2.0L, 17272, 11787589121 Replacement 1PCS
Regular price
$36.99
Product Detail
- Type Oxygen Sensors
- SKU BDDLZ-AGV0023005
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17272 BMW 2.0L Upstream Oxygen Sensor for N20 and N26 Applications
This BDFHYK upstream oxygen sensor is an OE-style aftermarket replacement for selected BMW 2.0L N20 and N26 applications that match 17272 or 11787589121. Verified fitment includes selected 228i, 320i, 328i, 428i, 528i, X1, X3, X4, Z4, and X5 xDrive40e configurations. Match the original part number, engine family, production year, connector, and before-catalyst exhaust location before ordering.
17272 BMW 2.0L O2 Sensor Vehicle Fitment
| Year | Application | Engine | Position / Note |
|---|---|---|---|
| 2014–2016 | BMW 228i / 228i xDrive | 2.0L N20/N26 L4 Turbo | Upstream / before catalyst |
| 2013–2018 | BMW 320i / 320i xDrive | 2.0L N20/N26 L4 Turbo | Upstream / before catalyst |
| 2012–2016 | BMW 328i; 2013–2016 328i xDrive | 2.0L N20/N26 L4 Turbo | Upstream / before catalyst |
| 2014–2016 | BMW 428i / 428i xDrive | 2.0L N20/N26 L4 Turbo | Upstream / before catalyst |
| 2012–2016 | BMW 528i / 528i xDrive | 2.0L N20 L4 Turbo | Upstream / before catalyst |
| 2013–2015 | BMW X1 28i | 2.0L N20 L4 Turbo | sDrive28i / xDrive28i |
| 2013–2017 | BMW X3 28i | 2.0L N20/N26 L4 Turbo | Year varies by sDrive/xDrive |
| 2015–2016 | BMW X4 xDrive28i | 2.0L N20/N26 L4 Turbo | Upstream / before catalyst |
| 2012–2016 | BMW Z4 sDrive28i | 2.0L N20 L4 Turbo | Upstream / before catalyst |
| 2016–2018 | BMW X5 xDrive40e | 2.0L turbo plug-in hybrid | Verify hybrid application |
The X5 application is the xDrive40e plug-in-hybrid configuration, not every X5. Do not select this sensor from the model name alone.
17272 BMW Upstream O2 Sensor Replacement Check
- Position: Upstream / before catalyst on verified applications
- Primary engine family: BMW N20/N26 2.0L turbo
- References: 17272; 11787589121
- Package: 1 sensor
Diagnosing the 17272 BMW O2 Sensor
A stored fault code or Check Engine Light does not prove that the upstream oxygen sensor has failed. Inspect the connector, harness routing, heater power and ground where applicable, exhaust leaks, and related engine-running conditions before replacing parts. Confirm the sensor location from vehicle-specific service information because similar-looking sensors may be used in different positions.
Bad upstream O2 sensor symptoms can overlap with intake or boost leaks, fuel-control problems, misfires, wiring faults, or exhaust leaks. Diagnose the stored code and live data rather than replacing the sensor from symptoms alone.
Installing the 17272 BMW N20/N26 O2 Sensor
- Allow the exhaust system to cool completely before removal.
- Compare the old and replacement sensors before installation, including the OE reference, connector, lead routing, and physical configuration.
- Use an O2 sensor socket or suitable wrench; avoid impact tools on the sensor.
- Start the sensor by hand to reduce the risk of cross-threading the exhaust bung.
- Use anti-seize only when permitted by the sensor instructions, and keep compounds away from the sensing element.
- Route the harness away from hot exhaust surfaces, sharp edges, and moving parts, then tighten to the vehicle-specific specification.
BDFHYK Oxygen Sensor Upstream O2, Compatible with BMW 328i X1 528i Z4 X3 X4 X5 l4 2.0L, 17272, 11787589121 Replacement 1PCS
Regular price
$36.99
