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BMW Oxygen Sensor - Bosch 11787545075 325Ci, 325i, 325xi, 328i, 328xi, 330Ci, 330i, & more

BMW Oxygen Sensor - Bosch 11787545075 325Ci, 325i, 325xi, 328i, 328xi, 330Ci, 330i, & more

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$240.00 AUD
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BMW N54 335i 135i Bank 2 after catalytic converter oxygen sensor - Part number 11787545075

490mm oxygen sensor, located in the downstream rearward position

Downstream or rear oxygen sensors are responsible for measuring the exhaust as it comes out of the engine. This information is used by your BMW's DME to adjust fuel trim. Failed oxygen sensors can cause a check engine light as well as performance issues.

Oxygen Sensor

Your vehicle's oxygen sensor works with your engine control unit to optimize your engine's performance. The oxygen sensor is measure the proportion of oxygen in the exhaust sends input back to the engine control unit so it can modify the vehicle's air fuel ratio based off of it's current conditions. In doing so your Oxygen Sensor is a major part of your vehicle engine management and fuel consumption.

Oxygen Sensor Failure Symptoms
  • Reduced fuel mileage
  • Failed emissions testing
  • A check engine light
  • Poor drive-ability

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