| Part # for 1996 S500 Climate Control Unit
The up temp button for the drive side is not working. When I press it and it does not have the "click" feel. Also, it doesn't response. I am thinking to open it and see there is a mechanical problem. Any suggestons?
This is the only problem with the control unit. Just in case I need to get a replacement, what in the part #. Thanks. | 
