Common Audi Check Engine Light Causes

Audi R8 Cabin

The check engine light is a sure sign that something is amiss with your Audi. Here's what you need to know about the common causes of an illuminated engine indicator and the steps you should take next. Many of these triggers are easy to fix, but some will require a trip to your Audi dealer.

Audi Engine
  • Loose gas cap. The most common cause of a check engine light is simply a gas cap that hasn't been tightly replaced. If you find your cap isn't screwed all the way on, tighten it completely. Your engine light should go off in a day or two if this was the only reason for the indicator.
  • Failed oxygen sensor. This component regulates the mixture of air and fuel emitted by your engine. If the sensor is no longer working, your car may burn more fuel than usual. Left unrepaired, a bad O2 sensor can damage the spark plugs and catalytic converter in your Audi.
  • Failed catalytic converter. This component to the exhaust system turns carbon monoxide into carbon dioxide. Although a bad converter can cause your check engine light to come on, it's also relatively easy to avoid this issue by having regular oil changes.
  • If your spark plugs or spark plug wires are worn or damaged, the check engine light will likely come on. Luckily, this is an easy, relatively inexpensive fix.

A flashing check engine light indicates a serious problem with your vehicle. If this occurs, avoid driving the car and have it towed to Audi Springfield for diagnosis and repair. This may indicate an engine misfire or other major issues. Our friendly, knowledgeable team will help get your Audi back to the optimal condition you expect from the brand.

Categories: Service
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