It seems that there are 2 differents case on these VEA engines:
EGR valve should have been replaced once.
EGR Cooler:
1st case:
The engines with only the final EGR Cooler seem not suffering from oil consumption.
2nd case:
The engines with intermediate EGR cooler fix (2016) and then with the final EGR Cooler seem suffering from oil consumption.
Is this intermediate fix responsible of clogging intakes valves, piston rings ...