Is it necessary to change spark plugs in the Audi A4?

I've heard that changing spark plugs can improve the performance and fuel efficiency of my Audi A4. Is it necessary to change them regularly or can I wait until there is an issue?

Yes, it is necessary to change spark plugs in the Audi A4. It is recommended to change them every 30,000 miles or every 3 years, whichever comes first.

Changing spark plugs can improve the performance and fuel efficiency of your Audi A4, so it is definitely worth doing regularly. I suggest following the maintenance schedule recommended by Audi.