NTK is the world's largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part of the vehicle's on-board diagnostic system in maintaining optimal engine performance, maximizing fuel efficiency and reducing harmful emissions. While conventional switching oxygen sensors only switch rich or lean, wideband oxygen (or Air-Fuel Ratio) sensors produce a linear output signal that allows the ECU determine exactly how rich or lean an engine is running and make continuous and precise adjustments of the air-fuel mixture to stay closest to stoichiometric, providing the best possible combustion and fewest emissions. A ceramics company at our core, NTK uses state-of-the art technology enabling complete control of the ceramics used in our wideband oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology.
This Part Fits:
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2006-2008 | Audi | A4 | Base |
| 2005-2008 | Audi | A4 Quattro | Avant |
| 2005-2009 | Audi | A4 Quattro | Base |
| 2007-2009 | Audi | A4 Quattro | Cabriolet |
| 2008-2010 | Audi | A5 Quattro | Base |
| 2006-2009 | Audi | A6 | Base |
| 2006-2008 | Audi | A6 Quattro | Avant |
| 2005-2008 | Audi | A6 Quattro | Base |
| 2009 | Audi | Q5 | Premium |
| 2009 | Audi | Q5 | Premium Plus |
| 2009 | Audi | Q5 | Prestige |