How Can I Check for a Faulty Alternator in My Audi 80?

I suspect my Audi 80's alternator may be faulty. What are the steps I can take to check it and confirm if it needs to be replaced?

You can use a multimeter to test the output of your alternator. Connect the positive lead to the alternator's positive terminal and the negative lead to a good ground. Start the engine and check the reading, which should be between 13.8-14.4 volts. If it falls outside this range, your alternator may need to be replaced.

Another way to check for a faulty alternator is to visually inspect it for any visible signs of damage or wear, such as loose connections or frayed wires. Additionally, you can listen for any unusual noises coming from the alternator while the engine is running. If you notice any issues, it may be time for a replacement.