My Audi Check Engine Light is coming on | What causes that?

Has the check engine light turned on in your Audi A4, A5, A6, Q5, or Q7? 
The check engine light on your Audi car whether that’s the Audi Q5 or other model could come on for a variety of reasons. Is the check engine light flashing or perhaps the check engine light illuminates itself consistently. Even if the issue isn't serious, you should still have your Audi inspected to be sure it doesn't develop into a costly repair. Let's examine the potential sources of this crucial warning system in more detail. 

 

Four most common causes for the Audi Check Engine light to turn on 

The check engine light is only activated when it is absolutely required and will likely need to be switched off by a mechanic or Audi certified technicians here in Atlanta. As previously noted, there are a variety of causes for your check engine light to come on, ranging in seriousness from your things like lowered fuel economy or reduced power to much more serious issues. The first thing to do is check your Audi to see if the gas cap is loose. 
 

Oxygen Sensor Issues can cause the check engine light to come on, in your Audi  

The oxygen sensor, located under the hood of your car, is a crucial part that controls the combustion chamber's air-to-fuel ratio. The performance you adore in your Audi may be permanently harmed if this component fails. Additionally vulnerable components include the catalytic converter and Audi spark plugs. When accompanied with a check engine light, rough idling is the most obvious sign of a failed oxygen sensor and should be a reason to take your Audi in right away. 
 

Catalytic Converter Failure can cause your Audi check engine light to come on 

To put it simply, before carbon monoxide is emitted as exhaust, it is converted to carbon dioxide in the catalytic converter. A healthy exhaust system is crucial for a vehicle to run efficiently. The Audi check engine light can come on if there are any problems with this system like a clogged catalytic converter. Bring your Audi into a shop for evaluation if your exhaust smells rotten or you notice that it appears to have changed color. 
 

Turbo Issues can light up an Audi check engine light 

Due to the high performance of Audi vehicles, any compromised system may cause the check engine light to come on. You might be experiencing a performance-related problem if you see a noticeably lower level of performance together with the check engine light turning on. Power reduction should be obvious. Immediately, bring your Audi in for diagnostics if the engine starts to shake or steam. 
 

Loose gas cap on your Audi could be the culprit of your check engine light turning on 

When the check engine light appears on your Audi dashboard, we hope it’s for this reason since it’s a very simple resolution. In most Audi’s, the gas cap contains a sensor that detects when the cap is not tightly screwed on. One common cause of the light coming on is forgetting to fully tighten this cap. So it’s important to make sure your gas cap is completely tightened before researching more serious issues. If your gas cap was the issue, the check engine light ought to immediately go out after it detects the issue has been fixed. 

In Atlanta, you won’t be able to pass emissions or register your car if your Audi check engine light is on. 

 You are required to pass an emissions test annually after your car is more than a couple years old. If your check engine light is on or flashing in your Audi it will be an automatic fail. You won’t be able to register your car, meaning you cannot legally drive it.  
 

FAQs about Audi check engine lights

Why should I have my Audi Q5 or other Audi model fixed when my check engine light comes on? 

It goes without saying that your car's engine is one of, if not the most important, part of your Audi. The causes of the check engine light are not limited to the usual ones mentioned above. Even if your Audi Q5 or Audi doesn't exhibit any obvious symptoms, driving with the check engine light on might be dangerous. Ignoring it could lead to more serious and costly problems if ignored  

The check engine light coming on simply signifies that the onboard diagnostic system has detected a problem. This computer is generally reliable and only turns on the light when something requires immediate attention. If you bring it to our Audi service center near Peachtree City and Newnan, we will be able to diagnose the issues by troubleshooting the check engine light code (trouble code).  

Is it safe to drive my Audi after my check engine light comes on? Or should I call a tow truck?  

You do have a window of time to get the check engine light diagnosed and fixed if it is NOT flashing. See below for what a flashing check engine light could mean. While a check engine light may not signal an eminent threat, it should not go undiagnosed.  The number of miles you can drive with a check engine light really depends on what the code signifies and unfortunately you won’t know that without getting your Audi checked out. Bring it in to our Atlanta dealership so we can diagnose the problem.   
 

My Audi Check Engine Light is flashing – is it serious?  

A flashing check engine light is quite serious and should not be ignored. The blinking light on your Audi Q5 Q7, A4, A5 A6 or other Audi model means severe engine problems and, if ignored, this can spread to the spark plug wires, catalytic converter, or ignition coils which can lead to an even more expensive car repair.  
 

While it can be frustrating, the check engine light on your Audi shouldn’t be ignored for very long if it comes on. Let our Atlanta Audi dealership fix it and have you on your way.