There are many parts and components in our Audi that will need maintenance and repair over the lifespan of your car. Some parts naturally breakdown over time and others can wear out due to complications from problems that will arise with use. As each component of your car functions in tandem with others, it is important to understand their role in your Audi. Let’s look at the O2 sensor.

The oxygen sensor is also referred to as the O2 sensor, and is a component located in the exhaust system which measures oxygen levels. This helps to determine the air-to-fuel ratio required for best performance. When the O2 sensor fails, it cannot collect the necessary information, and this affects engine performance and emissions, putting your engine’s combustion process at risk. A bad O2 sensor can also damage your catalytic converter, which can lead to a very costly repair.

Signs of a Faulty Oxygen Sensor in Your Audi

A failing oxygen sensor needs to be replaced right away. It is vital for emissions, performance, and fuel economy. Changing it as soon as you notice a problem will prevent future issues. If your vehicle is older, it is more susceptible to failing oxygen sensors. Below are some of the most common signs of a faulty oxygen sensor in your Audi:

Check Engine Light is Illuminated

There are many different issues that can trigger your check engine light, and a failing oxygen sensor is one of them. If your light is ever illuminated, bring your Audi into Dell’s Service Center so one of our certified mechanics can run a diagnostic scan to pinpoint the exact issue.

Reduced Gas Mileage

Reduced gas mileage can be a sign of a failing oxygen sensor. If you notice that you are using more gas, you should have your sensor tested. A bad sensor will not be able to work as efficiently as it once did. This causes your Audi to burn more fuel than it should.

Smell of Rotten Eggs

If you smell a scent of rotten eggs coming out of your exhaust, your oxygen sensor is failing. The odor can enter into the interior of the car, and this smell can make for a very unpleasant driving experience.

Engine Idles Roughly

Your Audi may begin to run roughly when the oxygen sensor begins to fail. This is caused by an improper air-to-fuel ratio. You may also experience backfiring, hesitation, stalling, and lack of power.

Failed Emission Test

You may not experience any signs that your oxygen sensor is failing, so it may come as a surprise when your vehicle fails an emissions test. Many states require the test to be performed to cut down on pollutants. When your car fails, it is because it is producing too much carbon emissions.

Replacing the Oxygen Sensor in Your Audi

Oxygens sensors will wear out as your vehicle ages. They are not a common maintenance item that gets replaced regularly. If your vehicle is over 15 years old, you should have it replaced. We also recommended that the sensor is replaced every 60,000 to 90,000 miles. Replacing the sensor helps cut down on pollutants and increases fuel mileage.

About Dell’s Service Center

At Dell’s Service Center, we can take care of all your Audi’s service needs. Our shop is equipped with the latest technology available. Having this technology on hand allows us to diagnose and service your vehicle quicker. You can rest assured that your issue will be taken care of quickly and professionally.

We have provided service to the Green Bay area for over 46 years. Our technicians can fix minor and major issues as well as gladly provide standard servicing. You can count on us for all your maintenance and repairs needs. You do not have to go to a dealership to get your car serviced, as we can do it quicker and at a reduced cost to you.


Schedule an Appointment Today

Contact us today to schedule an appointment. Our friendly and knowledgeable staff can answer any questions you have regarding your Audi. Dell’s Service Center is conveniently located in Green Bay, WI. We service the Green Bay, Manitowoc, and Sturgeon Bay, WI areas. You can reach us on 920-494-2860 or stop by and see us at 840 VanderperrenWay.

Call Now!