E320 1998 AC fan dose work on one speed only

[musabnashi]

Hi There,

I have 1998 E320 with 94000 miles on it. I am having a problem with the AC fan. The fan is so slow and I am not able to make it work faster even when I change the speed on the control. I tried to direct connect the fan it was working exteremly fast so I do not think it is the motor. My Mechanic said that it might be the module that controls the fan. I called MB dealer for it and they said that they do sell the whole fan unit and they do not sell the part alone. They asked for $800 for it. Any help, I realy do appreciate it. Thanks