I’m doing some (much needed) maintenance work on the 240 these days, and one thing that has been a problem for the last couple of years is that is will overheat when idling/standing still.
Now, the thermostat was changed a few years ago so in my mind it should still be fine. And water does flow, so it seems to be working as it’s supposed to.
Also did consider the radiator, but hoped it was alright, since all is well temp-wise when driving.