BMW 3 Series E46 - Coolant Leak - Searcher

BMW 318i Toring E46 54K miles, has a coolant leak around radiator, only appears to leak when temperature activates the fan. The leak source is difficult to locate as it appears to be under the chassis cross member.

Any thoughts?

BMW 3 Series E46 - Coolant Leak - Collos25

It needs to up to temp and up on ramps for a proper look if it its a hose you are lucky if its the rad then its a lot more expensive.