Anyone here can help me diagnose what is causing that foul smell coming out from my car's AC? I recently bought that car and just noticed that smell after a month. It is very random and I can't figure out what is causing it. I had it fully serviced by Toyota and they recommended replacing my water pump due to leak and also a regas. They said that they didn't smell what I mentioned before they check it. It is really a weird smell and I'm not familiar with it. Something like a spoil food. It is really annoying because it is very random. Any recommended AC specialist in Christchurch?