i have 1999 audi a4 2.8quattro v6 with a 98,000 mileage already, am wondering if how many mileage do i change the timing belt. i bought this car in 2002 as a used and the warranty was already expired and i don't have an idea if it has a timing belt or a timing chain. thanks

The Audi's timing belt should be changed every 90,000 miles.

American cars should be changed every 60,000 miles.