03-01-2010, 12:59 AM
Join Date: Jan 2004
Location: Gainesville, FL
My Ride: E46 330 and E30 325
FYI: Mechanical Fan to Electric Fan Swap
Let me just start off by saying I know this has been covered before, but no one has given a definitive answer, so I figured I'd make a thread for future reference.
I have an auto, and our cars come with a mechanical fan (engine driven) as well as an auxiliary fan to help with A/C and extra cooling power.
However, when I installed my supercharger, I had to remove the Aux fan to fit the intercooler. Because of that, the car would overheat when sitting at idle for too long, or if I ran the A/C (which wasn't even cold). I had to find a solution. I started looking at aftermarket fans, while also researching if I could swap an electric fan from a manual transmission E46.
I found a couple threads, but no real answers. I finally decided to PM the almighty and infinitely knowledgeable Mr. Nick G @ Technique Tuning, who informed me that it is a direct swap, and he performs this swap on his steptronic cars with no problems.
The mechanical fan and the aux fan have both been removed on my car, and replaced with a single OEM electric fan. So far so good. No wiring, no fitment issues, nada. Plops right in, plugs right in, and works.
Part # 17-11-7-561-757-M14
Cheapest place to buy: Pelican Parts - Click for direct link
Why?: Because a good aftermarket electric fan costs $150+. This is $100 more, and it's a direct plug-n-play.