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The Importance of the Check Engine Light in an Audi

by Dutch Silverstein August 3, 2018

The check engine light of a car is designed to signify a problem with the vehicle. The integration of the engine light to the computer system of the vehicle ensures that slight problems will be detected quickly, with the idea that the owner can have the issue looked at immediately to prevent further damage. The light sometimes can be frustrating when it illuminates without any obvious problem, but it does indicate that something is off, though it may be something as simple as a loose gas cap.

It’s easy to panic when you see the check engine light come on in your Audi, but keep in mind that the problem is not always a dire one. However, it is essential to find out what may have triggered the alert rather than ignoring it, which may cause more costly repairs in the long run. Below are some of the common reasons for a check engine light in an Audi.

Loose Gas Cap

A minuscule something such as loose gas cap can trigger the check engine light to switch on, and most Audi vehicle owners are unaware of that. A faulty gas cap is a serious safety hazard, and the light will alert the Audi driver of an urgent need to change or fix it immediately.

The vapor from the fuel has a significant impact on emissions and health, and it also affects the total mileage covered by your vehicle. If your check engine light comes on, try tightening your gas cap. If that doesn’t work, you might consider purchasing a new gas cap to see if that takes care of the problem. If it does, you will have saved the cost of consulting a mechanic.

Spark Plugs

A sudden lurch of acceleration in Audi vehicles indicates that the spark plugs are malfunctioning. In a combustion engine, new plugs can last up to over 100,000 miles; however, this does not guarantee that they will not wear out sooner as expected.

Although spark plug and spark wire repairs are relatively simple, it is recommended to seek an Audi professional mechanic to have a diagnostic run of the car. Audi owners are advised to save time and determine the exact cause of the problem by having proper repairs done by an experienced mechanic. Having a mechanic take care of the problem means they can clear the check engine codes out of the computer as well.

Oxygen Sensor

Audi vehicles have oxygen sensors that are integrated into their system, and they play an essential role in minimizing the emissions and controlling the gas mileage. If the sensor has a minor fault, it requires immediate repair to avoid the problem costing you lots of money in excess gas mileage over time.

Mass Airflow Sensor

A mass airflow sensor determines the rate at which the air is entering the internal combustion engine. The air flow rate is fundamental in combustion engines, as that air combines with gasoline and a spark to allow the spark plugs to create small explosions that power the pistons, which is what gets your car moving. Without the right amount of air, you’ll have misfires.

When the mass airflow sensor of the Audi vehicle is defective or faulty, it can cause the engine to run rough or even stall. A faulty mass airflow sensor will have some common symptoms such as engine hiccups, engine hesitation during acceleration, stalling of the engine when starting, and engine drags, especially when on load. A car with faulty mass airflow sensor should be taken to a qualified mechanic to have a complete diagnostic run. In some cases, the sensor can be cleaned, but it is usually best to replace it.

Audi Dashboard

Come See the Professionals

A & M Auto Service has experienced professional mechanics who handle preventive and automotive maintenance of your Audi vehicle. When the check engine light comes on in your Audi, we can check the codes and run a thorough diagnostic to determine the problem.

We provide excellent service for European cars from Charlotte to Greensboro, NC. Come by our garage in Pineville, NC to speak with one of our skilled service technicians about any maintenance or repairs you might need on your Audi.

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