Yes Dave the 3,2 should be a six and the postings about the EGR tube and rotorooting show it is much easier to access than the eights. What Steve uses, according to his post (if I remember correctly), was an old length of speedo cable driven by a drill motor. The cable is flexible enough to make the bends and auger out the crud. Probably how you'll need to try unless you want to pull the intake, the fitting is well under the intake and nearly impossible to get to.
Have no idea what quantity of carbonized crud would be deposited in the engine, nor what effect it would have. I don't recall Steve stating any concerns about the same in his post about the process.
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72
'02 CLK320 Cabriolet - wifey's mid-life crisis
2012 VW Jetta Sportwagon TDI...at least its a diesel
Non illegitemae carborundum.