Coolant drain plug on the engine bolck

[lemrick]

good day guys ,
hope all is well ,could anybody say where the drain plug on the engine block is i will like to drain the block of old coolant and then refill it , i have a 2008 Nissan caravan with a ZD30DDTi common rail
Thank in advance
lemrick

[supercharged turbo]

I don't think the engine has a drain plug on the block.