The timing belt on an Audi A3 should typically be replaced every 60,000 to 100,000 miles, depending on the specific engine model and year. It's essential to consult the owner's manual for the manufacturer's recommended interval. Additionally, if you notice any signs of wear, such as cracks or fraying, you should consider replacing it sooner. Regular maintenance is crucial to prevent engine damage due to timing belt failure.
Need the year to answer correctly.
I have changed timing belt on 97 A3 - 80,000ks - this would be upper distance travelled - be prepared to also replace water pump and idler roller as they are both part of tensioning path - the alternative could be somewhat expensive.
every 40,000 miles
The 2011 Audi A3 has 16 valves.
The 2006 Audi A3 has 16 valves.
The 2009 Audi A3 has 16 valves.
The 2010 Audi A3 has 16 valves.
The 2007 Audi A3 has 16 valves.
The 2013 Audi A3 has 16 valves.
The 2008 Audi A3 has 16 valves.
The 2012 Audi A3 has 16 valves.
The 2008 Audi A3 has a 6-speed manual.