E39 M5 Engine fan replacement with Elec fan - BMW M5 Forum and M6 Forums
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post #1 of 53 Old 10th February 2011, 10:54 AM Thread Starter
Naj
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E39 M5 Engine fan replacement with Elec fan

Dear BMW Guru's,


I know there have been a few posts of elec fan installs etc which I have searched on this board and others accross the www but I have not been able to find one that tells you 100% what you need to get the job done.

I have a 2002 E39 M5 and I want to replace the engine fan with a elec one I also want to be able to set the fan to switch on at 160F so I need a adjustable one.

There have been several posts about this. The one I am thinking to follow is by M5Stalker posted on 7th April 2007
https://www.m5board.com/vbulletin/e39...rocedures.html

He used Perma Cool #19115 16" High Performance Electric Fan and #18905 Wiring Kit (Adjustable 160 - 210 degree F Thermal Switch).

I have sourced these parts from alamomotorsports and wish to order..

Just wondering if I need anything else then the fan and wiring kit with Adjustable Thermal switch?

Questions that come up are: Can I use the original thermostat???

Anything else I should do or know or need? As I want the exact items that I need and nothing more or less to get the job done.




I am located in Dubai, United Arab Emirates.. where we have temp over 55C in summer. We have our own little club website and my post on the local website is here:
S62 5.0L Engine cooling - BMW Club UAE Forums

I thank everyone in advanced for your opinions and replies..!

Cheers!

Naj..
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post #2 of 53 Old 10th February 2011, 01:26 PM
feeblebob
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Although completely unaware, I would SUSPECT that the original thermostat would still be used as I would expect this to maintain the standard cooling system at 79 deg's, regardless of fan. Standard fan clutch appears to be designed for 95 deg's (I think I remember reading that).

2001 E39 M5 : Silverstone Blue, 19" Breyton Spirits (horribly rashed...Genuine BBS LM's to go on), Philips Silverline Indicator Bulbs, Intravee II and Alpine KCA-420i (in a box in the house) and 160GB iPod Classic , Evolve headers and race cats to go on, otherwise standard at the mo...

"I look at it like this. Owning an M5 is kind of like dating a slamming hot big-t...ed blonde, who is a pain in the *****, drains your cash, but screws like there's no tomorrow. Owning a Honda Civic or the like, is akin to dating a girl who is fat, ugly, smells a bit where she shouldn't, is a cheap date and doesn't screw at all (you don't mind). So yeah, I'll take the blonde." (Courtsey of Jetpilot718)

The thread of my car and it's progression to mechanical perfection... : https://www.m5board.com/vbulletin/e39...ry-thread.html if I ever get around to anything...

Cabin Filters 6/3/11, Bosch wipers 21/5/11, OEM air filters 24/5/11 (110,920), Oil Change, Oil Seperators and Thermostat 07/08/11 (112,699), Final Stage Resistor, Coolant Temp Sensor, Silvered Indicator Bulbs 21/08/11 (114,110), Private Plate 23/10/11, Came home from storage 13/02/13
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post #3 of 53 Old 10th February 2011, 03:14 PM
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Just one tip. In the olden days when M5s were assembled by hand a tech would have taken a small bit of sandpaper and sanded that sharp edge on the fan shroud.Quality Assembly. You can tape it, but the permanent fix would be to do what would have been done in the old days an take care of the details. 120 grit and ten minutes it is done. Edge is very sharp.
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post #4 of 53 Old 10th February 2011, 05:21 PM
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If you can install the electric fan by yourself(tapping power, ground, etc), then installing the thermostat will be the easiest part.

I definitely would not reccomend that fan. Are you planning on making a custom shroud or removing it all together? Our stock shroud fits a 18" fan nicely. At 16" you will have large gaps between the fan blades and the edges of the shroud completely defeating the purpose of having a shroud.

I'm not trying to shove my DIY in your face, but judging from the information you have collected you have not seen it.

https://www.m5board.com/vbulletin/e39...n-install.html

I couldn't get the link you posted to load, but if the problems of the shroud being too large were covered my apologies.


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post #5 of 53 Old 12th February 2011, 09:08 AM Thread Starter
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@Frye ..

Wicked! Im gonna follow you.. I was waiting to see who did it right and could tell me the exact things I need..

Thanks for the input!
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post #6 of 53 Old 15th February 2011, 07:19 AM Thread Starter
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So guys,

After checking out this DIY and searching for companies who supply the same. They got back to me saying Perma Cool is out of business..

Does anyone know where I can get the Perma Cool fan?

19117 18" High Performance Electric Fan
Mounting Area Req'd: 17-3/4" x 17-3/4" x 3-3/4"
Est. CFM: 2500
Motor RPM: 1500
AMP Draw: 10.3
Fuse Size: 30 AMP

PermaCool Electric Fan Accessories
Item Number: PMC 18905 adjustable 165-210F

Or does anyone else have another fan option for me?

Current ///M:
2002 E39 M5 M/6speed LeMans Blue|Reuters Catback|SS Brake lines|EBC pads|Dinan strut brace|B&G Springs|19" VMR VB3 CSL Style rims|IATS|Lower grill with brake ducts|aFe Stage 2 intakes|Evosport under drive pulleys "audiophile"|ZHP Shifter with Alcantara boot and Alcantara handbrake boot|More coming..

Past ///M:
2001 E46 M3 Coupe M/6speed Silver
1991 E34 M5 3.6L M/5speed Red
1993 E34 M5 3.8L M/5speed Black
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post #7 of 53 Old 15th February 2011, 01:35 PM
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post #8 of 53 Old 15th February 2011, 02:13 PM
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Have you looked at SPAL fans? I plan to buy a Zionsvlle kit for my next M5 as well and use SPAL fan controller to run it. The Zionsville kit uses a SPAL fan. Using the SPAL fan controller would be very clean, is adjustable and infinitely varies fan speed.

-Josiah
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post #9 of 53 Old 15th February 2011, 03:28 PM
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That sucks they went out of business. Best of luck finding a fan, if I come across anything I will let you know. Let me know if you have any questions!

As far as I know the biggest fan Spal makes is a 16" requiring a custom shroud or modifications.


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post #10 of 53 Old 15th February 2011, 07:40 PM
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Quote:
Originally Posted by Frye View Post
As far as I know the biggest fan Spal makes is a 16" . . .

Damn, I think you're right.

-J
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