Originally Posted by s85e90
Without a doubt go to and electric fan. It's mind boggling why BMW would use a fan clutch on a car that revs high like the s54. It's very straightfoward and simple to do.
Make sure you retain the shround and try and mount the fan as close to the rad as possible.
I ditched the shroud and aux fan.
So there's a lot of room with the aux fan gone...wondering if an oil cooler in the place of the aux fan would be better than the OE location. I can fit a bigger and less expensive Setrab there.
Or maybe do a small front mount cooler in series with the OE cooler.