would a 2005 audi a6 3.2 engine fit to a 2006 audi a6 3.2
would 2005 audi a6 3.2 enigine fit in a 2006 on 2005 Audi A6 Quattro
Both are BKH series engines, wrecking yards usually know but then again they want to sell engines. Any differences (exhaust manifold, sensor locations. I just looked up a random item, the valve cover gaskets both years had identical. Maybe go to a website like www.rockauto and compare engine mount, intake exhaust manifold gaskets, fuel injectors see if the external parts are the same/will mount in the same places. Perhaps post your question on an Audi specific website or A6 website, those guys are certainly enthusiast.
the bkh engines are similar to both model years,expect to use only the long block and you will not be surprised when y have to swap all accesorys such as intake ,exh,engine mounts ect.