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shogun View Drop Down
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Joined: 22-February-2005
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Points: 564 		Direct Link To This Post Topic: E34 aux fan resistor checking DIY
    Posted: 13-July-2006 at 03:32
http://www.bmw4life.com/auxFanR.htm
E32 750iL,E36 M3

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fingerman View Drop Down
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Points: 564 		Direct Link To This Post Posted: 13-July-2006 at 08:29
Good stuff - thanks Shogun.

Mine isn't working so I'll follow the tips and have a look later !

And it just blows the fuse - well melts it really in the fuse box

Thanks,
Fingerman
Current: E34 1996 525tds 113-125k
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Points: 114 		Direct Link To This Post Posted: 13-July-2006 at 23:07

http://theloft.dynip.com/fan/index.htm

Here's some piccies of my attempt to fix my broken aux fan the other week.  Managed to revive the beastie and save myself some cash!



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Joined: 07-December-2005
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Points: 2280 		Direct Link To This Post Posted: 13-July-2006 at 23:37

Fantastic instructions and pics crombers! ever thought of rivalling haynes?? (wouldn't be difficult! lol)

Nice one!

Mike

Current:E34 540i Touring 6 speed manual(Mpower bodykit & suspension)& Chrysler Voyager 3.3 V6 auto
Previous:E34 530iSE AC Schnitzer suspension.
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chazzer View Drop Down
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Joined: 25-April-2005
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Points: 383 		Direct Link To This Post Posted: 13-July-2006 at 23:41
Originally posted by fingerman fingerman wrote:

Good stuff - thanks Shogun.

Mine isn't working so I'll follow the tips and have a look later !

And it just blows the fuse - well melts it really in the fuse box

Thanks,
Fingerman
same as mine then  mine only works on high speed when powered directly so it sounds like it could be this ....

regards

chaz
 
Current : 1995 BMW E34 540I Auto 98K Fully Loaded, Leather, Sat Nav & Dvd. Previous: 1991 BMW E34 520I Manual(non-vanos) 185K with full leather. 1990 BMW E34 525I Auto 113k in sterling silver
& 1993 BMW E34 520I SE in dimond black
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shogun View Drop Down
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Points: 564 		Direct Link To This Post Posted: 14-July-2006 at 03:09

If it only works high speed, then I would check the relay.

There is another instruction on Gale's page how to check that. Link is on my website below, look for Gale's page.
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oddball View Drop Down
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Points: 112 		Direct Link To This Post Posted: 14-July-2006 at 10:53

Nice one Shogun,

Does the centre section of the pumper come off on all Models? Mine's a 93 525iSE and the last time I took the number plate off I'm sure it was one piece - could be wrong though.

Nev
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Joined: 25-April-2005
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Points: 383 		Direct Link To This Post Posted: 14-July-2006 at 13:21
Originally posted by shogun shogun wrote:

If it only works high speed, then I would check the relay.

There is another instruction on Gale's page how to check that. Link is on my website below, look for Gale's page.

forgot to say it only runs high speed when powered directly, on low speed it just blows the fuse but when its all connected with a/c rad etc it always comes on low speed blows the fuse before it gets the chance to run high speed....

regards

chaz
Current : 1995 BMW E34 540I Auto 98K Fully Loaded, Leather, Sat Nav & Dvd. Previous: 1991 BMW E34 520I Manual(non-vanos) 185K with full leather. 1990 BMW E34 525I Auto 113k in sterling silver
& 1993 BMW E34 520I SE in dimond black
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Points: 1365 		Direct Link To This Post Posted: 14-July-2006 at 13:39
I had the same problem with the low speed circuit on my 635.

Resister was getting vey hot. Turned out there was a short in the wiring. Even when this was discovered & fixed the low speed circuit wouldn't work due to the fan motor burning out (worked ok on high speed though).

Ended up getting a new fan/motor assembley for £123 which was pricey but could heve been much worse.
AndyS
Live each day as if it's your last - one day it will be.
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