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Go Back   E46Fanatics > Tuning & Tech > DIY: Do It Yourself

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 06-14-2013, 02:05 PM   #341
Solidjake
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Quote:
Originally Posted by Yewzer B Lewzer View Post
Ok, done. Now for my objective opinion of this mod:
Has it been referred to as "the best freakin' mod ever" yet?
If not, that is a travesty, because it is. Just sayin'
EXCELLENT work. Enjoy the mod and update us on your MPG's
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Old 08-18-2013, 10:03 AM   #342
irwankencana
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I did this swap. haven't got the time to take out pusher fan though, but almost a week haven't got any issues with temp nor cooling. definitely feel car more responsive.
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Old 08-18-2013, 08:21 PM   #343
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DIY: Aux/mechanical fan to electric fan swap

Quote:
Originally Posted by Yewzer B Lewzer View Post
Before mod, Mack Truck sound and 23.3 MPG.
After mod, quiet and smooth, will report MPG after a few tanks.
Quite a number of tanks through it now. 24.6 MPG. YAYAH!




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Old 08-20-2013, 05:34 PM   #344
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Nice!

Anyone else who did the mod post up some results!
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Old 08-24-2013, 11:43 PM   #345
2003silver330i
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Add one more - better gas mileage. Before the swap my average weekly mpg was 23 - 23.5. Now it is 25 - 25.5. Nothing else was changed in the car.
This right here makes the swap worth it because it pays for itself in the end.
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Old 08-29-2013, 01:19 PM   #346
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I am now doing 35.6 mpg on the highway cruising at 60.
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Old 08-29-2013, 02:41 PM   #347
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I am now doing 35.6 mpg on the highway cruising at 60.
What was the MPG prior to the swap?
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Old 08-31-2013, 11:05 AM   #348
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I want to do this mod too but I keep having this nagging question in my mind making me hesitate.

If this mod is an improvement then why did BMW engineer the car with a mechanical fan?

There must be a downside to the mod that BMW knew is all I can guess.
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Old 08-31-2013, 01:39 PM   #349
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Quote:
Originally Posted by Dave1027 View Post
I want to do this mod too but I keep having this nagging question in my mind making me hesitate.

If this mod is an improvement then why did BMW engineer the car with a mechanical fan?

There must be a downside to the mod that BMW knew is all I can guess.
Dave don't over think this mod. Many of us have done this with NO negative effects. JohnRando just did his also...

I did mine in May and so far NO issues with overheating and I'm in the desert where it gets really Hot. We had 7 straight days of 118 degrees and my coolant temps were never over 194 degrees Fahrenheit. I'm using the UltraGauge to constantly monitor the engine temps.

Positive effects:
- Car runs better overall, quieter
- More mpg, approx 1.0-1.5 better
- Easier to work on
- No chance of Mechanical Fan flying apart and damaging the hood or engine components.

Last edited by WOLFN8TR; 09-04-2013 at 09:32 PM.
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Old 08-31-2013, 02:18 PM   #350
Yewzer B Lewzer
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Quote:
Originally Posted by Dave1027 View Post
I want to do this mod too but I keep having this nagging question in my mind making me hesitate.

If this mod is an improvement then why did BMW engineer the car with a mechanical fan?

There must be a downside to the mod that BMW knew is all I can guess.

I had the same concerns but to me the actual benefits outweighed the possible down-side. I love the result. By the way, look at post #339. I was concerned and did before and after coolant temp checks.

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Last edited by Yewzer B Lewzer; 08-31-2013 at 03:03 PM.
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Old 09-04-2013, 07:51 PM   #351
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Thanks for the DIY. I found a link to this thread when I was looking at replacing my cooling system and decided to the the swap to the electrical fan at the same time. My car has been running great and I really like how much quieter the new fan is than the old one.
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Old 09-04-2013, 08:09 PM   #352
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Quote:
Originally Posted by Dave1027 View Post
I want to do this mod too but I keep having this nagging question in my mind making me hesitate.

If this mod is an improvement then why did BMW engineer the car with a mechanical fan?

There must be a downside to the mod that BMW knew is all I can guess.
And to add to what the post after you said. I put over 6, yes 6 THOUSAND miles on my car within NINE DAYS going through the desert, by the pacific ocean, through the canyons, to the grand canyon, through the rocky mountains, everything. Zero problems.
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Old 09-04-2013, 11:49 PM   #353
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So am I missing the DIY video? I can't find it...
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Old 09-07-2013, 10:51 AM   #354
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Wasn't made yet.
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Old 09-13-2013, 05:51 AM   #355
Denis330ci
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Re: DIY: Aux/mechanical fan to electric fan swap

It's easy I did it for both my x5 and 330ci ..if u interested just pm me

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Old 09-25-2013, 08:09 AM   #356
TheFix330i
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DIY: Aux/mechanical fan to electric fan swap

Has anyone had a problem with a SES light after install?


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Old 09-25-2013, 08:19 AM   #357
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Re: DIY: Aux/mechanical fan to electric fan swap

I did not have that problem

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Old 09-25-2013, 09:51 AM   #358
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DIY: Aux/mechanical fan to electric fan swap

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I did not have that problem

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I probably need to just clear the codes. It's been 2 months and it hasn't gone off yet by itself. My peake reader shows fault -- ? Manual says it means error.


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Old 09-26-2013, 05:26 AM   #359
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Has anyone had a problem with a SES light after install?


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It's probably not related to the fan swap. Have the codes read and let us know what they are.
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Old 09-26-2013, 05:38 PM   #360
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My car is much quieter with the mechanical fan gone. All that is left is the engine/intake/exhaust note Honestly this mod is worth it for that. I haven't noticed an improvement in MPG.
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