REMOVED THE ETM...
https://www.volvoforums.org.uk/showthread.php?t=94139
its similar to this, EXCEPT, you'll remove the ETM (and the plug in wires) on the right of the 2inch silver EGR valve shown, it has 4 bolts that are hand tight only, and a metal spacer washer (no need to replace unless its bent)
Yours will more than likely look as blocked as this one... They do get nasty.