The 2012 Audi A3 has double overhead cam (DOHC).
The 2006 Audi A3 has double overhead cam (DOHC).
The 2008 Audi A3 has double overhead cam (DOHC).
The 2007 Audi A3 has double overhead cam (DOHC).
The 2009 Audi A3 has double overhead cam (DOHC).
The 2011 Audi A3 has double overhead cam (DOHC).
The 2010 Audi A3 has double overhead cam (DOHC).
The 2013 Audi A3 has double overhead cam (DOHC).
The 2015 Audi A3 has an inline 4 engine.
The 2015 Audi A3 is a gas-powered vehicle.
The 2015 Audi A3 has a 6-speed automated manual.
The 2015 Audi A3 has 164-wheel ABS valves.