And check on the invoice you have if clearly stated that engine coolant and twin turbo coolant was replaced max 3 years ago.
This is 2 different circuits, very often the turbo / twin turbo intercooler crcuit is not done because not easy and could be problematic.
If you do not have the proove it has been done, my best advice is to have it done.
We will have warned you our best....
Many issuer starts very simply, because of a lack of maintenance, they grew up in silence, and one day the problem is mature and could ruin the engine.