An epic tale of bravery and overheating....
We start our story in the gentle mountains of Western North Carolina, where my 1975 240D, Oskar, likes to overheat at stop signs and traffic lights.
Once on his way again, Oskar rides smooth and cool at 175.

So, in a long story cut short.
One flushed radiator, new thermostat, new sending unit, new water pump later,
still overheating at idle, but runs cool at highway speeds (35-55mph).

3 mechanics said probably a head gasket leak.

The thing is, I not leaking any fluids, and there doesn't seem to be any fluids where they are not supposed to be.

Could it possibly be anything else? Is there anything I'm overlooking?

P.S. This problem has only started about 2 weeks ago, and I'm not noticing any change in drivability.....

Thanks for Advice!

Paul Nunan