Gotta major coolant leak somewhere but weather's been way too kak for me to take off the undertray and start searching.

Top hoses, etc appear ok when I checked u/bonnet and there's no mayo or gunk in the remaining coolant.

Before I go down the blown gasket / cracked block route, i.e. big bucks garage fix, I'd like to check over the coolant system myself.

I was planning on removing the rad first to see if the leaks coming from there.
Is this worthwhile? If so any advice/tips on removal procedures would be welcome.

Cheerz