How to replace the oxygen sensor on an Audi 80?

I noticed that my Audi 80 is having trouble running smoothly and I suspect it might be an issue with the oxygen sensor. How can I replace it correctly to fix this issue?

To replace the oxygen sensor on your Audi 80, first locate the sensor which is usually near the exhaust manifold. Use a oxygen sensor socket or an adjustable wrench to remove the old sensor. Then, clean the threaded portion of the exhaust manifold and install the new sensor. Be sure to tighten it securely.