sounds like your problems sorted.......then again it may only just be starting if i bought your barn lol

Could it be PAG oil from the A/C?? water oil mix?? clear no smell just a thought

Dab some of the clear fluid up with a tissue.

Set light to the tissue.

If the tissue burns away including the fluid, its oil or fuel

If the damp part of the tissue wont burn, its water

If its water, and its clear, its condensation from the air conditioning system coming off the evaporator fins as they unfreeze.

And the smelly taste is due to the water passing over oily parts as it gravitates to "firm terra".

And the drive staining, water dragging some deposits along with it, but also enlivening the dirt on the drive like a watermark before evaporating away.