What do I need to know about replacing the spark plugs in an Audi 80?

I want to replace the spark plugs in my Audi 80, but I'm not sure what I need to know beforehand. Can someone give me some advice on what I should consider before attempting this task?

Make sure to use the correct spark plugs for your Audi 80 model. Refer to your owner's manual or consult with a mechanic if you are unsure.

Be careful when removing the old spark plugs, as they may be stuck and require some force to come out. Use a specialized spark plug socket to avoid damaging the plugs.