You're gonna cause me to have to buy another car, so I can find out myself. I'd have though those threads were there from the get go, there has to be a way to pull the head without pulling the lower cover, unfortunately all my experience is on the V-8's. Hopefully a M104 expert will know for sure.
'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.