I tried to be open minded and checked Camry before buying a German again, it drives like a boat, it's totally ridiculous and cannot even compare with any Benz driving train. Let alone the Camry Engine that is as powerful as a Thai buffalo...
Good lucky fixing your Vios, there is not even 1 car aircon shop in Pattaya that has an electronic sniffer (500 baht on Lazada) to find if you have a leakage. They are all working as good as they construction brothers: they know nothing and are happy with it, so do not expect a lot from them.