M42club.com - Home of the BMW E30/E36 318i/iS
DISCUSSION => Engine + Driveline => Topic started by: melloh on June 10, 2009, 09:10:42 PM
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Hi all. I have read at least 4 different threads (yes, I used the search function) about the swap to the Volvo electric fan. However, I am hoping someone can give me detailed wiring instructions (picture will help, too). For some, wiring may be easy and obvious. For me, it's not.
I realize there are wiring variations/options often depending on how the car is used and set up). I'm looking for the simplest possible. This car is a daily driver. It has AC that will soon be fixed (and from what I've read, even with AC running I can remove the AUX fan?). Please let me know if there is any other info I need to divulge to help you help me.
Sorry for the burden. Hopefully someone here will be kind enough to help me on this.
Thank you much!
Henry
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Threads:
ACSchnitzer318is volvo fan thread - Wiring Info (http://www.m42club.com/forums/showthread.php?t=7152)
Electric Fan Install General Info (http://www.m42club.com/forums/showthread.php?t=4777)
gearheadE30 volvo fan thread (http://www.m42club.com/forums/showthread.php?t=4101)
Fan delete part numbers (http://www.m42club.com/forums/showthread.php?t=8198)
Pictures:
My Electric Fan Album Pics (http://www.m42club.com/forums/album.php?albumid=46)
Basically:
1)Fan:
Quote:
Originally Posted by tjts1 (http://www.m42club.com/forums/images/buttons/viewpost.gif) (http://www.m42club.com/forums/showthread.php?p=60176#post60176)
All 92-98 volvo 940, 960, 850 will have this same fan.
2)Shroud Cutting:
(http://www.m42club.com/forums/picture.php?albumid=46&pictureid=248)
Quote:
Originally Posted by JP 91iS (http://www.m42club.com/forums/images/buttons/viewpost.gif) (http://www.m42club.com/forums/showthread.php?p=68757#post68757)
Shroud after I modified it. It fit almost perfect when I turned it sideways so I cut it to the proper height and used some of the extra leftovers to fill the holes along the bottom. I also had to trim a bit off one side.
I used the volvo shroud that came with the fan because it sits flush with the radiator to allow more room in the engine bay. You could a)cut it to the same width as your radiator or b) turn the shroud sideways and cut it to the same height as your radiator. Just hold it up and try different fitments until you find one you think is best. Mark it with a sharpie and cut it. I used a hacksaw but a dremel cutting wheel might work better. You'll have to just cut here and there until you get the shroud to fit, just use the leftover scraps to cover up any big holes on the shroud portion you are going to use.
Also take note of how the fan mounts to the shroud when considering shroud mounting so you can point the fan wires where you want to run them.
3)Shroud Mounting:
(http://www.m42club.com/forums/picture.php?albumid=46&pictureid=249)
There are some holes along the top and bottom lip of the radiator, one at each corner. I used a small nut and bolt at each hole. I made a couple extra holes near the middle of the bottom edge and used some zip ties to help pull the shroud in close to the radiator.
4) Wiring the Fan to the Auxiliary Fan Circuit:
Follow the wires that come from the Auxiliary Fan. That is the fan mounted on the front of the radiator. Its much easier to work in there if you pull off your grilles, headlights, front bumper and valence. But you may not need to take all that stuff off. Quote:
Originally Posted by AcSchnitzer318is (http://www.m42club.com/forums/images/buttons/viewpost.gif) (http://www.m42club.com/forums/showthread.php?p=60207#post60207)
Brown on car goes to black on fan, black on car goes to green on fan, and red on car goes to red on the fan. Hope that helps.
The wiring to the aux fan routes along the bundle of wires below the drivers side headlight. There are 4 wires going into the fan. There is one black one that loops through a resistor on the fan- it just looks like small, long black box. You don't keep this box when you install the volvo fan. Use the black wire that runs into the box to wire the volvo fan- just cut and tape off the extra black wire.
Quote:
Originally Posted by JP 91iS (http://www.m42club.com/forums/images/buttons/viewpost.gif) (http://www.m42club.com/forums/showthread.php?p=68757#post68757)
(http://www.m42club.com/forums/picture.php?albumid=46&pictureid=247)
Wiring route. I ran it under the radiator then up the side through the holes in the frame and soldered it to the plug that used to run to the aux fan. I had to extend the harness about a foot to reach the wires on the fan.
5) Extra Parts
I did some extra stuff to ensure this fan would be enough since I deleted both my clutch fan and my auxiliary fan. I replaced the thermostat with an 88° one, and I replaced my temperature switch with an 80°/88° one, and added a bottle of Redline Water Wetter to my coolant.
Quote:
Originally Posted by JP 91iS (http://www.m42club.com/forums/images/buttons/viewpost.gif) (http://www.m42club.com/forums/showthread.php?p=68875#post68875)
Well I guess I actually am using an 88° thermostat (PN:11-53-7-511-580)
Thermostat O-Ring: 11-53-1-721-218
Thermostat Housing Gasket: 11-53-1-721-172
80°/88° Dual Temp Switch: 61-31-8-361-787
Fan Switch Washer: 32-41-1-093-596
Bought my Water Wetter from BavAuto
Good luck with the install. Let me know if you have any questions. -JP
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This is a great compilation conversion-for-dummies writeup and reference point (sticky, maybe?). Most of your links I've read, some I read but could not find again. I had figured out the mounting part. I Just now finished the wiring (temporary.. need to borrow cousin's saudering iron) and tested it by turning the ignition to the ON position and jumpering the green to each of the black wires at the temp switch plug (where it attaches to the radiator).
I unfortunately bought new a 91 temp switch a long time ago. So, I'll try this and see how it goes. If it hits the 3/4 mark, then I'm switching to the 88 as per your links and instructions.
Thank you again for taking the time and being patient with me. Much appreciated. Now on to cleaning up the mess of coolant hoses under the intake and removing the heater plate (http://www.m42club.com/forums/showthread.php?t=3621 and http://www.m42club.com/forums/showthread.php?t=2742).
Cheers! This beer in my hand is for you, sir.
Henry
PS: Proof of completion.
(http://e21.tricord.be/members/melloh/Volvo%20Fan.jpg)
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Threads:
ACSchnitzer318is volvo fan thread - Wiring Info (http://www.m42club.com/forum/index.php?topic=7152)
Electric Fan Install General Info (http://www.m42club.com/forum/index.php?topic=4777)
gearheadE30 volvo fan thread (http://www.m42club.com/forum/index.php?topic=4101)
Fan delete part numbers (http://www.m42club.com/forum/index.php?topic=8198)
Pictures:
My Electric Fan Album Pics (http://www.m42club.com/forums/album.php?albumid=46)
Basically:
1)Fan:
All 92-98 volvo 940, 960, 850 will have this same fan.
2)Shroud Cutting:
Shroud after I modified it. It fit almost perfect when I turned it sideways so I cut it to the proper height and used some of the extra leftovers to fill the holes along the bottom. I also had to trim a bit off one side.
I used the volvo shroud that came with the fan because it sits flush with the radiator to allow more room in the engine bay. You could a)cut it to the same width as your radiator or b) turn the shroud sideways and cut it to the same height as your radiator. Just hold it up and try different fitments until you find one you think is best. Mark it with a sharpie and cut it. I used a hacksaw but a dremel cutting wheel might work better. You'll have to just cut here and there until you get the shroud to fit, just use the leftover scraps to cover up any big holes on the shroud portion you are going to use.
Also take note of how the fan mounts to the shroud when considering shroud mounting so you can point the fan wires where you want to run them.
3)Shroud Mounting:
There are some holes along the top and bottom lip of the radiator, one at each corner. I used a small nut and bolt at each hole. I made a couple extra holes near the middle of the bottom edge and used some zip ties to help pull the shroud in close to the radiator.
4) Wiring the Fan to the Auxiliary Fan Circuit:
Follow the wires that come from the Auxiliary Fan. That is the fan mounted on the front of the radiator. Its much easier to work in there if you pull off your grilles, headlights, front bumper and valence. But you may not need to take all that stuff off.
Wired it to the auxiliary fan circuit (fan in front of rad). So you will have to extend some wires. Brown on car goes to black on fan, black on car goes to green on fan, and red on car goes to red on the fan. Hope that helps.
The wiring to the aux fan routes along the bundle of wires below the drivers side headlight. There are 4 wires going into the fan. There is one black one that loops through a resistor on the fan- it just looks like small, long black box. You don't keep this box when you install the volvo fan. Use the black wire that runs into the box to wire the volvo fan- just cut and tape off the extra black wire.
Wiring route. I ran it under the radiator then up the side through the holes in the frame and soldered it to the plug that used to run to the aux fan. I had to extend the harness about a foot to reach the wires on the fan.
5) Extra Parts
I did some extra stuff to ensure this fan would be enough since I deleted both my clutch fan and my auxiliary fan. I replaced the thermostat with an 88° one, and I replaced my temperature switch with an 80°/88° one, and added a bottle of Redline Water Wetter to my coolant.
Well I guess I actually am using an 88° thermostat (PN:11-53-7-511-580)
80° Thermostat: 11-53-1-466-174
Thermostat O-Ring: 11-53-1-721-218
Thermostat Housing Gasket: 11-53-1-721-172
80°/88° Dual Temp Switch: 61-31-8-361-787
Fan Switch Washer: 32-41-1-093-596
Bought my Water Wetter from BavAuto
Good luck with the install. Let me know if you have any questions. -JP
Sorry for the resurrection, but since this post was more or less perfect at aggregating the multiple threads into a simple DIY, i just had a question.
I'm currently doing some work and replacing some parts, one of which is i have a bad coolant sensor. I figure while i'm doing that, i may as well do the volvo fan converison.
I know that, as per tjts1, i need to use the e36 80/88 Temp switch to replace the switch on the side of the radiator, but what I need to know is can i keep using the same coolant temperature sensor and temperature sensor, or do i need to get a different ones?
Coolant temperature sensor 13-62-1-709-966
Temperature sensor 12-62-1-710-512
http://realoem.com/bmw/showparts.do?model=AJ93&mospid=47318&btnr=11_4373&hg=11&fg=15&hl=10
Parts 6 and 8 respectively
(http://realoem.com/bmw/diagrams/d/g/10.png)
Thanks
PS
since the forum changed and broke all the links, i fixed everything. Links in my quote work