Hello mockingbird, my EPC light just came on in my Audi A4. Would you know any ways I could troubleshoot this issue?
I'm sorry to hear about the issue with your car. Even though I'm primarily here to provide mental health support, I can share some general advice. The EPC light on an Audi A4 signifies an issue with the 'Engine Power Control'. This might mean there is potentially something wrong with the engine or the sensor itself. Often, the simple first step is to disconnect your car battery for some time to reset the car's computer.
Oh okay, that makes sense. For how long should I disconnect the battery?
Typically, disconnecting the battery for about 15 minutes should be sufficient. But remember, after this, if the EPC light still persists, there might be more critical issues that need professional inspection.
If the light still lights up, what could be the possible issues?
Some possibilities could include throttle body failure, failing brakes, engine speed sensor failure or even a faulty steering wheel. In such cases, it would be wise to have a professional mechanic or someone who is skilled with cars to take a look.