What Causes Audi Q5 Check Engine Light To Come On in Bellevue?

In general, the preventive maintenance and service of the Audi Q5 are highly essential for its smooth functioning. When something wrong arises in the car, you may notice a check engine light is illuminated on the dashboard. Moreover, it is the first indicator that something may not function efficiently and cause bigger problems behind the road.

Thus, the check engine light is alerting the driver about the severity of the problem and needs the immediate attention of a mechanic. Perform a complete diagnostic test for determining the causes behind the check engine light and fix the problem for preventing the issues for longer. Neglecting the problem for longer could cost you a huge of money on the repair.

When it happens, you have to consult with a reputed mechanic for fixing the problem. The following points define the causes behind the activated check engine light on the dashboard of your Audi Q5.

Failed airflow sensor

Generally, the airflow sensor is an important part of the engine management system for adjusting to changes in altitude. Moreover, the main purpose of the airflow sensor is to monitor the amount of air entering the engine of the car.

When the airflow sensor of the car is failed for any reason, you will experience several problems such as trouble starting, rough idling, and sudden changes in the place of the throttle pedal, engine stalling, and reducing the fuel mileage poorly.

Loose fuel cap

When you will notice the check engine light comes on in your car, check the fuel cap for determining its current condition because the loose or faulty gas cap may activate it on the dashboard. Moreover, the fuel cap is an important part of the car that can seal the fuel system and maintain the pressure of the fuel tank.

On the other hand, the gas cap is preventing the gas fumes from leaving the fuel tank and keeps the system under the right pressure. If the fuel cap has any issues, then you will notice the check engine light turns on the right way and perform the immediate replacement of the cap.

Damaged catalytic converter

Like the other causes, the damaged catalytic converter also activates the check engine warning lights on the dashboard of the Audi Q5. Moreover, the catalytic converter is an important part of the exhaust system that can keep the car environmentally friendly by converting carbon monoxide into carbon dioxide.

Take proper care of the converter because without it, your car doesn't move properly, and replacing the parts may lead to expensive repairs. Due to the damaged catalytic converter, you will notice a rotten-egg smell produced from the engine with an activated check engine warning light.

Worn spark plugs

Commonly, the spark plug is a vital component of the car that can ignite the air/fuel mixture inside the combustion chamber for delivering the right amount of spark to start the engine. Without a fully functional spark plug, the engine doesn't start.

When the spark plug is worn out or damaged, it will cause numerous problems while driving like reducing the engine power, rough engine idling, shutting off the engine suddenly, lowering down the fuel mileage, decreasing the engine performance, and causing engine misfiring as well as fail the ignition coils and O2 sensors.

Failed exhaust gas recirculation valve

The main task of the exhaust gas recirculation valve in your car is to lower down the nitrogen oxide produced from the engine for running it efficiently. On the other hand, it warms up the fuel by returning the exhaust gases back into the combustion chamber for burning it smoothly and reducing the harmful emissions produced from the car.

If the exhaust gas recirculation valve in your vehicle is damaged for any reason or clogged up, then replace the part as early as possible. For the whole process, you have to consult with a reputed service center.

Conclusion

When the check engine light of the Audi Q5 comes on, take it to a mechanic for proper diagnosis. If you are currently living in Bellevue, then your professional mechanic will determine the causes by plugging a code scanner into the car's OBD-II port. The numerical code generated from the problem can help you to diagnose the issues and make proper fixes to get back it on the road.

We at Landmark Motors INC. located in Bellevue, WA is Bellevue's leading European auto service center. We specialize in luxury auto services and repair and our service center is state-of-the-art, with the most recent tools and software.