So I wired to solenoid to "energized" and voila, no more heat! Thanks for the explanations.

Then I took out the CCU, resoldered the connections, and voila, no more heat! Did I mention that I reinstalled the original connection? And still no heat!

Time for a new thread....

Thanks for your help. Nothing more to see here. Move along.

__________________
mjk

'84 300SD 119KMi (Liesl der Diesel)
'84 300D 326KMi when the oil left (former parts car)
'82 300SD 253KMi (new parts car)