Mercedes 508D - Electric Fan Installation

In this video we will show you how Björn changed our broken original radiator fan to an electric fan (Spal VA18-BP70 / LL-86A 24V).

Here you will find some pros and cons of having an electric fan:

So, why are we changing the original fan to an electric one? Well, first of all, we need to change the old fan in any case because it is broken. The electric fan we chose has a better cooling effect compared to the original one.
Also, we are planning to install a switch to be able to turn the fan on and off. You could also install a temperature sensor that will control it automatically, which we might do in the future. But for now, we figured since we are going to the northern regions of Sweden and Norway, the switch will allow us to choose when to run the fan. For example, in such extreme temperatures like -20°C (-4°F), the old fan would always be on but the electrical one we will be able to turn off. That way the engine won't get even colder, and we will get better heating efficiency in the cabin.
The only disadvantage in this case is that we will always have to remember to turn the fan on and off.
But since this fan is more efficient, it will cool the engine even more during warmer months. If you are driving very slow, like in a queue, for example, the engine might overheat because the original fan would be spinning too slow, but with the electrical fan that won't be an issue.


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