84 380SE, 95K miles, its a cherry (a bright red 126!). When in heat mode with temperature wheel at full heat, i get full heat at the windshield. When I turn the wheel from hot to cold there is a point about halfway where it will become 100% air flow from center dash vents (cool air). Doesn't matter if i'm in economy or compressor mode. After searching the threads, I suspect either defrost element behind the radio or CCU (solder joints hopefully) Any consensus on which it is?

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65 190d sold
85 380SE sold
87 560 SL 180K
84 380SE 96K (mint)