Cooling water loss in the Turbo or AGR range (D5)

Volvo V70 D5 (185ps), Built 2007 Geartronic 6-speed Aisin TF-80-SC, 180 tKM Good evening together, my Volvo loses quite a lot of coolant. About 0.5 liters per hour when the engine is warm. No loss is apparent or much less when standing. No loss is apparent from above. Today the lower engine cover has been taken down. You can see that the coolant runs down the transmission and has to step out in the area of AGR or Turbo. Where exactly the liquid leaks can’t be detected without further notice. One should probably take air to the filter box, hoses to the vacuum pump or turbo heat protection. Questions: Is the turbo cooled by coolant? (To know if the liquid leak is possible in this area.) Are there typical flaws in this area that could be closed to the D5? (in order to order spare parts before starting the operation or simply prioritizing the search.) Greetings, Bond