I have a 2015 Ford Fiesta.
I drove home with the air-conditioning on for approximately eight miles. When I got home I thought I saw some wet patches trailing behind me as I was parking the car. I didn't think anything of it, but when I looked underneath the car 10 minutes later, I found two wet patches. One was on the driver's side at the front of the car, the other was a larger patch which was roughly on the passenger side in the middle. I don't know anything about cars, but can confirm it was water (not petrol or oil). The water in the radiator hasn't dropped. I telephoned Vospers, and they told me it was the air-conditioning, but they seemed a little surprised that the wet patches were in two places, but were still adamant it was due to the air-conditioning being on.
Please can you advise if what I have described does sound like what would normally happen if you had the air-conditioning on.