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DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 03-28-2013, 08:39 AM   #301
straight_beamin
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Its probably hit or miss. If its a good deal try it out. Its only a fan why not
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Old 03-28-2013, 06:11 PM   #302
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Very helpful thread

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Old 03-28-2013, 07:43 PM   #303
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Seriously considering this swap. I know I was told earlier it'd be a good mod, but didn't listen. Will do now !
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Old 03-28-2013, 07:44 PM   #304
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If the loud fan noise that I hear is the mechanical fan, I am looking forward to
doing this. Reducing drag on the engine is great, too.
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Old 03-28-2013, 08:36 PM   #305
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Just did this to my car last night, I can notice a large difference in the "feel" of the car when accelerating. The install was pretty simple but I haven't actually noticed the fan running. Granted, it is 30 degrees outside today. Does it work the same way as the AUX fan? Thus working only when needed?
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Old 03-29-2013, 12:34 PM   #306
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Yes it does. When I did the swap I drove around and was getting out every so often until I saw the fan running. Took a while of driving, and then sitting in aparking lot.

Taking the aux fan out tomorrow. No issues to report as of yet. Car runs great, and I can't wait to do some work tomorrow without having to remove the damn mechanical fan!
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Old 03-29-2013, 12:58 PM   #307
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Taking out the front pusher fan opens up a nice direct airflow to the radiator. I had some black aluminum screening (like on a screen door) handy, so I put that across the front of the radiator, to keep bugs and stuff out of the radiator fins, which has worked well.
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Old 03-29-2013, 01:25 PM   #308
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I live in Las Vegas were it gets up to 110-115 in the summer. My Mechanical fan runs all the time in the summer and is annoying. Here's the thing if guys like me and several others are doing this Mod in extreme temp locations with NO issues. Why do other guys have reservations that live in mild climates, they say it doesn't seem necessary. If you live in mild climates it should be the first Mod you do. This isn't about adding extra cooling BTW.
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Old 03-29-2013, 07:16 PM   #309
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Taking out the front pusher fan opens up a nice direct airflow to the radiator.
Is it because the pusher fan smaller, than the electric one replacing it?
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Old 03-29-2013, 11:16 PM   #310
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The front pusher fan has a shroud/frame around, which comes out when you remove the fan. As I recall, the pusher fan is a bit smaller than the electric puller fan behind the radiator.
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Old 04-20-2013, 11:37 AM   #311
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I just used this guide two weeks ago when I did a total cooling system refresh. Not only am I running a hair cooler I am now getting over a 2MPG AVG bump in gas mileage! Can't beat it!!!
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Old 04-21-2013, 06:21 PM   #312
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Anyone notice A/C not getting as cold? I did the mod but I have not removed the front fan behind the bumper yet.

Joe
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Old 04-21-2013, 09:31 PM   #313
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Anyone notice A/C not getting as cold? I did the mod but I have not removed the front fan behind the bumper yet.

Joe
My AC is running exactly the same as before. I'm sure it's because you still have the Aux fan installed. It's blocking the air flow. Before the mod the Aux fan runs when the AC is turned ON, now it's just blocking the air flow. Look at these photos.



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Old 04-28-2013, 08:56 AM   #314
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holy dirty condenser

so the aux fan removed wouldn't raise ac temps a bit?
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Old 04-28-2013, 09:00 AM   #315
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When I removed my aux fan I was surprised how much crap was wedged in between the fan and condenser. You WILL need to remove the fan and clean it out.

My AC is colder if anything... Certainly not hotter. Plus the extra 2MPG is awesome and worth it in and of itself!
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Old 04-29-2013, 06:30 AM   #316
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Quote:
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When I removed my aux fan I was surprised how much crap was wedged in between the fan and condenser. You WILL need to remove the fan and clean it out.

My AC is colder if anything... Certainly not hotter. Plus the extra 2MPG is awesome and worth it in and of itself!
what did ya clean it with? i don't have access to hose, maybe carb cleaner or brake cleaner would work on dirty cond?
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Old 04-30-2013, 12:18 PM   #317
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Just did it this weekend.
I love it. Engine revs freely, car no longer sounds like an 18 wheeler.
No change in engine temps, but I haven't removed the front aux fan yet.
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Old 05-04-2013, 12:44 PM   #318
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Got my fan from BMAparts.com. I want to do it before bfest in two weeks.Is it necessary to run a lower temp t-stat?
Is there a lower temp switch available for this conversion?
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Old 05-04-2013, 12:56 PM   #319
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Got my fan from BMAparts.com. I want to do it before bfest in two weeks.Is it necessary to run a lower temp t-stat?
Is there a lower temp switch available for this conversion?
I did my swap and everything else is stock, no issues. Love this mod, I also gained 1.3 mpg. I installed a UltraGauge to monitor the coolant temps. It has alarm settings so if the coolant temp gets to high a alarm will sound. It also checks troubles codes and clears them. Click on the link in my sig.

http://www.ultra-gauge.com/ultragauge/index.htm
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Old 05-06-2013, 09:15 AM   #320
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Ultra gauge is a neat little device. Just keep in mind though that it will rely on the coolant temp sensor if that's not reporting accurately, we'll then nothing can save you

What I'm getting at is that if you haven't already, it might be a good idea to change the sensor. Good luck!
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