I just got home and checked the manual.
I looked at that passage, then at the drawing. Notice in the drawing there is an arrow on the left side of the shield? That arrow is the locating arrow, indicating which side goes toward the front.
My take on the passage is that in the drawing, the locating mark on the shield is situated to the left. Basically drawing attention to the fact that the shield are directional. I could be worng though.
'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.