The 2005 Audi A4 has double overhead cam (DOHC).
The 2014 Audi A4 has double overhead cam (DOHC).
The 2001 Audi A4 has double overhead cam (DOHC).
The 2007 Audi A4 has double overhead cam (DOHC).
The 2010 Audi A4 has double overhead cam (DOHC).
The 2003 Audi A4 has double overhead cam (DOHC).
The 2011 Audi A4 has double overhead cam (DOHC).
The 2008 Audi A4 has double overhead cam (DOHC).
The 2006 Audi A4 has double overhead cam (DOHC).
The 2012 Audi A4 has double overhead cam (DOHC).
The 2009 Audi A4 has double overhead cam (DOHC).
The 2013 Audi A4 has double overhead cam (DOHC).