Audi Oxygen Sensor

Selected Make: Audi [Change Vehicle]

Select Audi Year


2008 2007 2006 2005 2004 2003 2002 2001 2000 1999	1998 1997 1996 1995 1994 1993 1992 1991 1990 1989	1988 1987 1986 1985 1984 1983 1982 1981 1980 1979	1978 1977 1976 1975 1974 1973 1972 1971 1970 1969

"On Time Every Time! You Can Count On PartsTrain!"

Featured Models

Audi 100

Audi 200

Audi 4000

Audi 5000

Audi 80

Audi 90

Audi A3

Audi A4

Audi A6

Audi A8

Audi Allroad Quattro

Audi Cabriolet

Audi Coupe

Audi Fox

Audi Q7

Audi Quattro

Audi RS6

Audi S4

Audi S6

Audi S8

Audi TT

Audi V8 Quattro

Home > Shop By Department > Oxygen Sensor > Audi Oxygen Sensor

Browse our Wide Selection of Audi Parts

Audi Air Filter

Audi Axle Assembly

Audi Brake

Audi Brake Caliper

Audi Brake Disc

Audi Brake Pads

Audi Brake Rotors

Audi Clutch

Audi Engine Mount

Audi Fuel Injector

Audi Fuel Pump

Audi Muffler

Audi Spark Plug Wire

Audi Timing Belt

Audi Water Pump

Audi Wheel Bearing Hub

Audi Window Switch

Audi Antenna

Audi EGR Valve

Audi Alternators

Audi Ball Joint

Audi Catalytic Converters

Audi Control Arms

Audi Exhaust

Audi Oxygen Sensors

Audi Shocks

Audi Starter

Audi Suspension

Audi Struts

Audi Tie Rod

Audi Distributor

Audi Air Deflector

Audi Car Cover

Audi Cargo Liner

Audi Exhaust Manifold

Audi Floor Liner

Audi Floor Mat

Audi Head Gasket

Audi Intake Manifold

Audi Mud Guard

Audi Radiator

Audi Window Motor

Audi Window Regulators

Audi Repair Manual

Audi Heater Core

Audi CV Joint

Audi Knock Sensor

Audi Steering Rack

Audi Wheel Bearing

Audi Strut Assembly

Audi Shock Absorber

Audi Oxygen Sensor

Audi vehicles will not be considered as reliable and high performance if not for its high quality parts that comprise the whole vehicle assembly. Audi vehicles are tuned for excellent performance and operation in various driving situations and different weather conditions. They include premium quality engine parts, exhaust parts, and other interior and exterior parts. These parts have different functions which contribute greatly to the overall performance of the Audi vehicle. But there is one car part which is especially designed to feed data to the engine management computer of the Audi vehicle and that is the Audi oxygen sensor.

The main function of the Audi oxygen sensor is to contribute to the performance of the engine so as it will only have as few emissions as possible. Basically, gasoline engine needs oxygen in order to burn gasoline. And to do this effectively, a perfect ratio should be achieved which 14.7:1. Take note that not all fuels have the same ratios; it all depends on the amount of carbon and hydrogen found in a given amount of fuel.

If the perfect ratio is not achieved, which means the mixture is either too lean or too rich, there can be poor engine performance and can even lead to serious car damage. It is considered a rich mixture if there is less air than the perfect ratio, and so there will be fuel left for combustion. This is not good since the unburned fuel creates pollution. Lean mixture, on the other hand, is a mixture with more air than the perfect ratio. Since there is an excess in oxygen, more nitrogen-oxide pollutants can be produced, thus this can lead to ineffective engine performance. Therefore, the purpose of the Audi oxygen sensor is to detect these lean and rich mixtures. This is positioned in the exhaust pipe and it includes a mechanism which involves a chemical reaction that generates a voltage. The computer in the engine looks at this voltage in order to determine if the mixture is lean or rich. Then it adjusts this amount of fuel which enters the engine accordingly.

The main reason why the engine needs the oxygen sensor is because the amount of oxygen that the engine can pull in depends on many things. These include the temperature of the air, the altitude, engine’s temperature, barometric pressure, and engine’s load. So, if the oxygen sensor fails, how can the engine’s computer possibly determine a rich or lean mixture depending on all these?

With this importance of the oxygen sensor, it is therefore necessary to keep it in good condition at all times. And if your oxygen sensor fails and needs replacement, you can easily find one here at Parts Train, where a wide variety of car parts and accessories are available at affordable prices.