If it’s water coming from the air con, it’ll be clear and odourless. If it's clear water, it's condensation from your air conditioning system. What Are Common Causes Of Water Leaking From Under A Car - Cash Cars Buyer The top cause of serious engine damage is loss of coolant. Green fluid leaking from car air conditioner . You can have the refrigerant reclaimed and remove evaporator. Some of the most common causes of a water leak are the exhaust, the cooling system, and the windscreen washer system. That is freon with the dye. Search what line it is and try to find a replacement. Shaft seal leaks have been known to develop with periods of inactivity as short as two weeks. During the steps to get it fixed, it gushed out freon and dye. The most important thing to do is to check that the liquid beneath your car is from the air conditioning. You should be able to smell this one before tasting it. Your car’s a/c is a system that cools the air and regulates humi...