Mercedes Climate Control Fits W124 cars. 

Up for sales is a excellent used Mercedes w124 Heater A/C push button climate control. Functional, all buttons are nice. Temp "wheel" white section is slightly yellowed from age, though the red / white & blue + numbers are all still there & fully ledgable. The Mercedes part number on this unit is 124 830 21 85 /  1248302185 .  This should work with most W124 Mercedes cars, however best bet?  Match your original part number unit.

This part currently lists for well over $400 at MBUSA. Unit was runtested and is functional. Offers a 30 day warranty. Thanks for looking!