Hi, I own a Proton Iswara year 2002. Last 2 year, my car air-con system give my stale smell. I then take it to workshop and have it pump the gas. I week later, the same smell come again and I go back to the same workshop and they check where they notice the valve is faulty which need to replace.

Now my car air-con again gives me the stale smell and there is seems like water dripping from the bottom of the compartment of the front passenger seat everytime i on the air con to max temp? what would be the cause and any idea what should i replace?

Thanks.