wheres the high pressure sw to jumper to test out the aux fans. I suppose I can idle the car out in the heat (its been like 80 something here) with the AC on to see if the fans kick in. Do the aux fans have a temp threshold to come on as well? The 190e 2.3 had an engine block temp sensor for the aux fan that would trip the fan at like 87 or 90 degree C. Anything similar to that on the m104?

Thanks for the help!!