hey guys i have a e240 classic 1999. mu main fan keeps running on high speed mode, i had it checked out and they said that the micro computer on board, the electronic key and the electronic fuse box all have differetn program veresion and need to be reprogrammed to be compatible with one another, and that will solve the problem. any idea about this problem?... can anyone tell me how to reprogram these things and where can i download the software?