The check engine light in your Audi is an indicator that the On-Board Diagnostic (OBD) system has detected a problem that needs immediate attention. These fault codes are most times referred to as diagnostic trouble codes, which are stored in the Engine Control Unit (ECU).
Common Problems of the Check Engine Light
There are specific problems that can trigger your Audi’s check engine light to come on. Let’s take a look at some of these:
- Oxygen Sensor: Your Audi oxygen sensor, also known as the O2 sensor is the car engine component that reports all input codes to the engine control unit, as it sends feedback to the air-fuel mixture burned by the engine.
- Worn spark plugs: Whenever your Audi’s check engine light starts blinking on the dashboard, you should understand that there is usually reduced power, an increase in the consumption of fuel by your engine, and most times your Audi car engine shaking due to a misfire or worse. When the light is flashing, pull over and call for a tow.
- Ignition Coils or Coil Packs: The ignition coils of your Audi, also known as coil packs, can be malfunctioning, leading to unburned fuel, engine shaking, or the catalytic converter of your car glowing red.
- Vacuum leaks: Anytime your Audi car starts to show unstable idle RPMs, it may be caused by the intake air system that leaks through cracks and loose hoses.
- Bad catalytic converter: Whenever your Audi car displays fault codes pointing to catalyst efficiency below threshold, your car will begin to experience difficulties accelerating, especially uphill.
- Low-quality gas: The check engine light in your Audi can turn on due to low-quality gas, which will manifest as reduced engine power.
- Turbo Problem: If you start to experience reduced power in your Audi, one of the most common problems with the turbo, which could be a lack of turbo engine oil, problems with the air intake, or leaks.
- Ignition Control Module: If there is any problem with the ignition module, starter, or spark plugs, your check engine light will illuminate.
Resetting Your Audi’s Check Engine Light
There are fewer steps on how you can find the root cause of your check engine light, though it is more advisable to visit our automotive workshop to handle these issues so you can be sure a professional is reading the codes properly.
- Locate the OBD-2 port: You can locate the OBD-2 port under your dashboard at the driver’s side of your Audi car.
- Plugin your OBD-2 Scanner: Once you locate the port, the next other thing is to plugin your OBD-2 Scanner into the Audi OBD-2 port.
- Turn key to position II: When you turn your Audi key to position II, all the dashboard lights will be turned on, but do not ignite the vehicle. If your Audi car has a Start or Stop button, you have to press down the Start button without touching the brake pedal.
- OBD-2 Scanner: You have to allow the OBD2 scanner to turn on and connect to your Audi’s ECU.
- Read or Clear Audi Codes: Then the next to do is to read the check engine light codes that come through the engine control unit. You can clear the fault codes by going to the erase fault menu, but that is not advisable. By erasing the codes, a professional shop cannot help you fix the root cause, and further damage may occur to your Audi without the proper repairs or replacement.
Vaughan Automotive: Your Audi Specialists
Here in Vaughan Automotive, we confidently pride ourselves on providing extraordinary service to our customers. Our team of ASE-certified mechanics helps European car owners in the greater Atlanta area.
Our shop is fully equipped with the most recent factory-grade tools and equipment available. We also pride ourselves on providing your clients with the best auto service in our area. We proudly serve customers in and around:
Reach out to us today at our service center in Atlanta for your check engine light and any car maintenance or service needed. We look forward to earning your business.