[batmmannn]

Would not the manufacturer make far more money with replacement electric fans rather than the conventional fans that usually last the life of the car?

Hmmm, you could charge for sensors, and switches and electronic troubleshooting. It is no secret that car manufacturers are trying to put the local garage out of business.

Garages can't even read their codes on new vehicles any more and the dealers aren't releasing their diagnostics to 3rd parties. It won't be too many more years that if you have a new car only your dealer will be able to work on it.