The 2007 Audi A3 has a 6-speed manual.
The 2011 Audi A3 has a 6-speed manual.
The 2008 Audi A3 has a 6-speed manual.
The 2009 Audi A3 has a 6-speed manual.
The 2010 Audi A3 has a 6-speed manual.
The 2006 Audi A3 has a 6-speed manual.
The 2013 Audi A3 has a 6-speed manual.
The 2012 Audi A3 has a 6-speed manual.
The 2015 Audi A3 has a 6-speed automated manual.
Yes, the engine is interference fit.
maf combined
It tells the injector to fire at correct time