Where auxillary cooling fan control module located?

I'm going to recommend you consult a local shop near you to help, one that specializes in Mercedes-Benz vehicles. This is a question not likely to get an answer on the Internet of any specifics, as it's a specialized system of a particular vehicle requiring workshop manual knowledge. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops