The purpose of the fan is to help blow cooler air through the radiator when the coolant levels rise above a certain temperature. You are likely to notice this on occasions when you are stuck in traffic and there is no cool air moving through the grill to help cool the coolant system.
This product would be the best fit for those looking to replace the cooling radiator fan in their Renault Master MK2 2.5 dCi 120.
