You use the word condensation to describe the "fluid" on the floor. Was it raining on the days the "condensate" showed up? Water from on the car could be running off into drains and then falling onto the floor??? Can you relate the location of the condensate to an area of the car e.g. front under engine, under the transmission, under a differential, rear under tailpipe??? Condensation will come from "warmer" water vapor condensing on a "cooler" surface. Water vapor may come from your engine exhaust as the car is cranked in a cool exhaust pipe or cool air environment. If your car has a leak such that a fluid shows up on the garage floor, what could it be??? Engine coolant would be red or greenish, transmission fluid is (usually) red, brake fluid is clear, windshield fluid is colored depending upon brand used. So if your "condensation" is clear it may be from the air conditioner drain which is not really condensation (the water from the air conditioner drain already condensed in the air conditioner "box" and then drains) or some other source of clear water vapor. Is the transmission acting abnormal? If your car has a transmission fluid cooler tied into the engine coolant radiator, the loss of coolant could be going into the transmission fluid which should show up as a rising transmission fluid level on the transmission fluid dip stick. I think your low coolant level warning is coincidental to the condensation on the floor.
Sorry to write so much but good luck. Please let me/us know what you find.
