Post: What causes an AC system to leak?

The main causes of leaks in your air conditioner are moisture and age. As mentioned earlier, when moisture mixes with the refrigerant it creates corrosive acids that can damage your entire air conditioning system.
Moisture can enter the system through old rubber seals and hoses, which can begin to lose their elasticity over time.
As you can see, if you do have a problem with your car’s air conditioning system, there isn’t always a quick fix.
To ensure your air conditioning system continues to remain trouble-free and perform at its best, it’s important to have any issues checked out by a professional as soon as possible.