V40 – Engine life?

So far, my wife has driven a Mercedes C-Class (W202). The engines and units have never caused problems, but the rust… I’d like to know what this topic looks like with the Volvo V40? I’m also interested in recommendations about the engine. The engines are hard to get with less than 150,000km. The 2.0T seems to be relatively stable, so that a turbocharger does not seem to represent a reason for buying. Is that right? The T4 is probably too temperamental for the front-wheeler. The 2.0 without a turbo is probably very tame? What is the durability of the automatic?