[sstroker]

Hey Fellas, I am new to this forum, and I would like to say that I am glad I was able to find you guys, I hope to be a regular here, and I've liked what I have read so far, but I do have a question.

I recently got a 95 S500 for my wife, car came to me as a trade, this is my first Mercedes ever, so I am very pleased with the car and exited at the same time, however, the car has a little problem.

When the ac is on, I can only run it in auto, the center vents on the dash blow cold air, but the vents on the outer side of the dash (left & right) blow hot air, as well as the defrost, if I run the ac in any other mode other that auto, I can not stop the defrost from blowing hot air, for now, the side vents are shut closed and I'm only using the center vents, honestly, since I do not know much about this cars, I wanted to get rid of the car a few weeks ago, but my wife loves it and I do like to drive it too, so I would like to find a cure for it and enjoy it.

I have read about the Duo Valve going bad on this cars, however, I don't know what it looks like or where it's located at, if you guys can elaborate on it one more time, I sure would appreciate it.

Thanks.

Jose

 

[sstroker]

Thanks for the reply.

Yes, I know about the blue and red buttons, I do have the blue one pressed for ac and the red one for heater, I have located the duo valve just like you illustrate in the picture above, I have give the ac control a good whack a few times but it still doesn't work, I'm going to try and diagnose the ac to see if I have any trouble codes.

Thanks.

Jose

 

[sstroker]

defrost is built to blow a hot air and only a hot air. nothing but a hot air.

That is true, but it's not supposed to blow hot air when the AC is working.

Jose