When should I change the cam belt on my Audi A6?

My Audi A6 has done very few miles due to the pandemic. In fact, it is some 10,000 miles below its average for this year. Do I still need to have the cam belt replaced?

Most Audi engines are timing belt. It should be changed every five years or 60,000 miles (whichever comes first). The belt can degrade and/or become brittle over time. It's not worth taking the risk as a failed belt will usually result in a wrecked engine.