450sl 1978 leaks cooling fluid when cooling off

[blueshield11]

Hi, my 450sl from 1978 has a kinda strange problem, I think.
This is what happened: I have checked the cooling fluid and it was okay. I have driven the car for a while and put it back in the garage. Next day there was a small pool of cooling fluid under the car.

I have started the car and let it run for a while. No leakage to be seen.

So it looks like it is leaking cooling fluid when cooling off !!

Can somebody tell me what is going on here ?

thanks.

[meltedpanda]

pressure builds up when you drive and the fluid gets hot, when you shut it off , pressure can actually increase for a little while because the fluid is not moving. IT then escapes out of a loose clamp or bad hose. I suspect its just a clamp that need tightened or a bad hose

[blueshield11]

thanks, I will check that.
could it be anything else that I can check also ?

[meltedpanda]

where is the puddle? I would start with the lines that go to and from the radiator. Was your car was at normal operating temp while driving ? Another way is to clean off the area above the drip and look for leak trails