Hello,

I just figured out how CVT transmission works, and I wonder if no-manual A4-2006 are all CVT?

 

For North America B7 models ( 2005.5 to 2008 )

FWD (Front Wheel Drive or FronTrak) A4's were either 6 speed manual or CVT automatic

Quattro (All Wheel Drive) were 6 speed manual or 6 speed Tiptronic

This other site has a more detailed description of Audi specs by model year
Click Here - Model Guide - Audi A4 | AudiWorld