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NGK direct-fit oxygen sensor for 2011 BMW 1 Series M. Oxygen sensors provide continuous closed-loop feedback to the engine control unit to help maintain engine performance, improve fuel economy and reduce emissions by controlling the air–fuel ratio and alerting OBDII systems to fuel delivery or catalytic converter issues. This sensor incorporates an advanced ceramic element with a 3-stage contaminant-resistant plasma-jet and deposit-trap overcoat to enhance resistance to element poisoning.
NGK BMW 1 Series M 2011 Direct Fit Oxygen Sensor
