The CD has the proper resistance values for the temp sensor so you can double check it. The problem may also lie in the sampler blower (aspirator motor), but I do not know where that is hidden on your 124. On the 560 that was the final item needed to get the AC work correctly. In my case the blower was working but not efficiently, changing it cured the problem.

My problem was that the AC would blow on high, freezing you out, then when it adjusted speed, the interior would heat up until the blower kicked up speed. Basically the reaction was seriously delayed.

__________________
Mike Tangas
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72

'02 CLK320 Cabriolet - wifey's mid-life crisis

2012 VW Jetta Sportwagon TDI...at least its a diesel

Non illegitemae carborundum.