NGK Audi A3 2013-2010 Direct Fit 5-Wire Wideband A/F Sensor

This NGK 5-wire wideband air-fuel ratio (A/F) sensor is built with an advanced ceramic element that's designed to resist contaminants. As a key part of your vehicle's diagnostic system, this sensor helps the engine control unit (ECU) make precise adjustments to the air-fuel mixture. This means your engine can run closer to optimal combustion, which helps maximize fuel efficiency and reduce harmful emissions. It fits a wide range of vehicles, including many Audi A3, A4, A5, A6, A7, A8, Q5, Q7, R8, S6, S8, TT, and TTS models, as well as various BMW, Ford, Lincoln, Porsche, Saab, and Volkswagen vehicles.

The ceramic used in these sensors is carefully controlled from raw material to the finished product, ensuring reliable performance. The sensor features a 3-stage contaminant-resistant plasma jet and a deposit trap overcoat. This design helps protect the sensor element from poisoning, which can happen from various substances in the exhaust stream. By providing a linear output signal, this wideband sensor gives the ECU the exact information it needs to keep the air-fuel ratio as close to stoichiometric as possible, leading to better overall engine operation.