Stockton Auto Repair

Audi Emissions and O2 Sensor Replacement in Stockton, CA

At Toole’s Garage in Stockton we offer full range of emissions diagnostics and repairs, including Audi oxygen sensor replacement. The internal combustion engine of your Audi requires the mixture of air and fuel to ignite in the cylinders. To ensure a good air-fuel ratio, your vehicle comes with an oxygen sensor, which is located in the exhaust pipe. The oxygen sensor (commonly referred to as “O2 sensor”) measures the amount of oxygen in the exhaust and communicates this information to the computer that adjusts air intake for the engine. A bad or failing oxygen sensor can lead to poor engine performance and high emissions.

Signs your Audi’s oxygen sensor is failing

A failing oxygen sensor can generate various symptoms that alert you of the problem. Here are the top symptoms to watch out for.

  • Check engine light comes on

The easiest way to know that something is wrong is when the check engine light comes on. The warning can illuminate for hundreds of reasons, including when the onboard diagnostics detect that the oxygen sensor is not working right.  

  • Bad gas mileage

When the oxygen sensor is failing, the air and fuel ratio is thrown off. This may lead to excess fuel being injected into the combustion cylinders. As a result, you may notice that you have to visit the gas station more often.

  • Rough idling

A rough idling engine could be a sign of a failing oxygen sensor. In other words, you may notice that your engine doesn’t run steady when parked or stopped.

If you notice any of the signs above, take your Audi in for a professional inspection at our Stockton auto care facility. Our technicians, nationally ASE certified, will use advanced diagnostic tools and decades of experience to verify the root cause of the issue, and if the sensor turns out to be the culprit, they can replace it as well. We offer nationwide 36 months / 36,000 miles warranty on all repairs. Call today for appointment.  

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