# NGK Audi A4 2009-2005 Direct Fit Oxygen Sensor

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. Providing constant closed loop feedback to the ECU, oxygen sensors help to control the air-fuel ratio while alerting OBDII systems of possible problems with fuel delivery or catalytic converter efficiency. A ceramics company at our core, NTK uses state-of-the art technology enabling control of the ceramic element used in our oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology.

-   ADVANCED CERAMIC SENSOR ELEMENT: 3-stage contaminant-resistant plasma jet and deposit trap overcoat protects against element poisoning

This Part Fits:

Year

Make

Model

Submodel

2008-2011

Audi

A3

Base

2005-2008

Audi

A4

Base

2007-2009

Audi

A4

Cabriolet

2005-2008

Audi

A4 Quattro

Avant

2005-2008

Audi

A4 Quattro

Base

2007-2009

Audi

A4 Quattro

Cabriolet

2005-2006

Audi

A6 Quattro

Base

2007-2010

Audi

A8 Quattro

Base

2007-2010

Audi

A8 Quattro

L

2012-2014

Audi

A8 Quattro

L W12

2007-2010

Audi

Q7

Base

2007-2010

Audi

Q7

Premium

2008-2012

Audi

R8

Base

2011

Audi

R8

Spyder

2008-2010

Porsche

Cayenne

Base

2009-2010

Volkswagen

CC

VR6

2009-2011

Volkswagen

CC

VR6 4Motion

2009-2010

Volkswagen

CC

VR6 Sport

2009-2011

Volkswagen

Eos

Komfort

2009-2011

Volkswagen

Eos

Lux

2008-2011

Volkswagen

GTI

Base

2008-2009

Volkswagen

Jetta

GLI

2009

Volkswagen

Jetta

SEL

2008-2010

Volkswagen

Jetta

Wolfsburg Edition

2008

Volkswagen

Passat

VR6

2007-2009

Volkswagen

Touareg

Base

2010

Volkswagen

Touareg

VR6

## Details

- **Price:** 234.84 CAD
- **Vendor:** NGK
- **Type:** Oxygen Sensors

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 234.84 CAD | In stock |

## Images

- Photo - Primary
- Photo - Primary
- Photo - out of package
- Photo - out of package
- Photo - out of package
- Photo - out of package
- Photo - out of package
- Photo - out of package

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/ngk-audi-a4-2009-2005-direct-fit-oxygen-sensor)
> Updated: 2026-06-27