How to replace the spark plugs on an Audi A4?

I recently purchased an Audi A4 and I noticed a decrease in performance. I suspect it may be due to old spark plugs. How can I replace them myself?

First, make sure you have the correct spark plugs for your specific Audi A4 model and engine. Then, locate the spark plug wires and carefully remove them. Next, use a spark plug socket and remove the old spark plugs. Insert the new spark plugs and tighten them with a torque wrench. Lastly, reconnect the spark plug wires and start your car to test the new spark plugs.

I would recommend watching a tutorial online before attempting to replace the spark plugs yourself. If you are not comfortable doing it, it's best to take it to a certified mechanic.

Don't wait too long to replace your spark plugs, as it can lead to decreased performance and even damage to your engine. Stay on top of your regular maintenance schedule to avoid any potential issues.