Outback 3.0 H6 watch out for what?

Hello everyone, I’m going to visit a used Outback 3.0 H6 on the weekend and try it out. The car came into the world in 2004 and now has 175’000km. Are there any specific bugs I should know and have to pay attention to? Where are the neuralgic points in this car? I’m grateful for any input! LG – cruiser