Is changing the spark plugs necessary for maintaining my Audi A4 engine?

I've heard that changing spark plugs is important for keeping your engine running smoothly, but my Audi A4 manual doesn't mention anything about it. Should I still make it a part of my regular maintenance routine?

Yes, changing spark plugs is an important part of maintaining your Audi A4 engine. While it may not be mentioned in your manual, it is still necessary for keeping your engine running efficiently.

Absolutely, spark plug replacement should be a regular part of your maintenance routine for your Audi A4. Neglecting to do so can lead to decreased performance and potential engine damage.