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NGK direct-fit oxygen sensor for 2000–2003 Audi A8 Quattro. Oxygen sensors provide continuous closed-loop feedback to the engine control unit, helping maintain optimal engine performance, maximize fuel efficiency and reduce emissions by controlling air–fuel ratio and alerting OBDII systems to fuel delivery or catalytic converter issues. This unit features an advanced ceramic sensor element with a 3-stage contaminant-resistant plasma-jet and deposit-trap overcoat to resist element poisoning.
NGK Audi A8 Quattro 2003-2000 Direct Fit Oxygen Sensor
