The radiator fan is not switching on.
would it be the fan control switch or what on 2002 Mercedes-Benz CL500

Fan is not switching on and car will just overheat if left running. Its a constant problem and car had been parked up and unused for several years.was told it might be a fan contorl switch but Ive no idea hwere to starty or look for it.

Asked by for the 2002 Mercedes-Benz CL500
fan controls are not working seek diag and est
I know its not working.
My question is whats probably wrong or needs replacing?
i would not guess,it needs to be looked at