Quote:
Originally Posted by BRIAN123
Whats it do? I never noticed two buttons , in the center of the dash air vents. One red, the other blue. I intutivetly understand that red is heat and blue is cold but what is the function? Are the on when depressed or off ?
This is a 1990 500SL.
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Brian, if you have an owners manual pg 22 will help you but if you don't please feel free to go to
http://www.benzworld.org/forums/2391320-post1.html for a free PDF download.