Crusty coolant

[Pebblefeline]

Hey everyone

Quick question.

I have some crusty coolant appearing around the expansion tank cap on my 5.
Picture below.

Anyone had anything similar?
Doesn’t seem to be a leak as far as I can tell

 

[twido]

Yes I have similar thing on my Transmission coolant mg ehs 2022, i dont think that is an issue TBH

 

[Alb]

Indicates that the cap seal is leaking.