Thank you sir. Your video gave me an idea of what to look for. 👍👍

my 2002 ml320 just started blowing 'cool' air. not cold. thanks for the tips. gonna check the hose to see if it is dry or slimed.

Thank you brother. That was helpful

I'm trying to help a lady going thru some tough times. I pulled the relay and jumpered the connections and the fans ran. I tested the relay and it works, so something is not sending power to the relay to activate it to send power to the condenser fans. The compressor is coming on, but I've determined the system is leaking refrigerant. I think it's coming from the expansion valve at the firewall.

Were did you buy that on / off relay???

Hi there, nice ML. It is possible your power steering fluid leaked on top of the AC compressor.

Do you know where the relay can be sourced? Was it just a bad relay in your case?

I have the same problem, the fan does not turn on. I don't even know how to check? I'm from Ukraine