Help, Mini one 1.6 coolant leak !!

[Melly24]

Can anyone help ? A small leak front passenger side when the car has been standing cold. It's not my aircon, because we have to keep topping the coolant reservoir. The car has been to two mechanics, it been pressure tested when running.
I have looked on YouTube & they were pressure testing when engine is cold ?
Has anyone else had the same problem ?

[Melly24]

2010, it's abit further back from the radiator, when the engine is hot & everything must expand & contract's when cold when the leak happens ;-)

[Melly24]

Thanks for advice, will advise my mechanic !!!

[Melly24]

Many thanks

[Melly24]

Thank you, I am making a list for my mechanic, with all the checks that he can make :-)