Emissions System for BMW 3 Series E93 (2007-2013)

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Is your BMW throwing emissions related codes? While we're primarily a BMW performance parts house, we understand the importance of maintaining your emissions system to pass inspection in your area and keep your check engine light off. Pick up your emissions related parts from Turner Motorsport.
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Rear Bank 2 Post-Cat Oxygen Sensor - 490mm - E70 E83 E82/88 E9X (N5X 3.0L)
Rear Bank 2 Post-Cat Oxygen Sensor - 490mm - E70 E83 E82/88 E9X (N5X ...
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T#:4934915
Part#: 3148030031
Ships on Oct 30, 2026
$ 112.99 USD
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$ 112.99 USD
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Add to Wish List
The oxygen sensor is vital to the performance and drivability of your car. The engine computer relies on data from the sensor to make adjustments in engine efficiency and performance. When your BMW oxygen sensor fails, the computer can no longer sense the air/fuel ratio, so it ends up guessing -- resulting in poor performance, poor gas mileage, and increased pollution. Make sure your BMW engine performs as it should, and doesn't use more fuel than it needs to, by simply changing your oxygen sensor today. There is no lifespan on O2 sensors but there are several fault codes that indicate a failed sensor (O2 monitoring, cat efficiency, O2 heating circuit, O2 readiness, and others). The O2 sensor is heated and has a self-calibration feature so once you get the codes or feel performance has suffered, a new sensor is a good starting point to get you back to peak performance. This oxygen sensor for BMW's with the N52, N54, and N55 3.0L engines. This 490mm bank 2 oxygen sensor is mounted after the catalytic converter.
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