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7 Series - E38 (1995 - 2001)

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  #1  
Old 08-05-2012, 06:02 PM
RamDog1993 RamDog1993 is offline
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Location: Palm Harbor,FL
 
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Mein Auto: 2000 BMW 740iL
00 740iL - New BMW owner help with A/C blower motor Problem

Just bought a 2000 BMW 740IL and the A/C will not blow due to blower motors not coming on need help on how to remove blower motors or atleast reach the things. ANY advice greatly appreciated

Last edited by RamDog1993; 08-05-2012 at 06:26 PM.
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  #2  
Old 08-06-2012, 08:01 AM
john@eac john@eac is offline
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Location: Ohio
 
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Is the blower motor bad or is the Final Stage Unit (Blower Regulator) bad ?
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  #3  
Old 08-06-2012, 02:13 PM
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BMWFatherFigure BMWFatherFigure is offline
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Location: Perth, Western Australia
 
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Mein Auto: E23;E30;E38;E32;E34 +
To access blower motors: 1) Obtain good worshop manual. 2) Take lots of photo's. 3)Set aside 2 days. Thre are only 2 jobs worse than heater/aircon jobs and they are rear crank seal and front gear box seal. Done them all on one car or another - the heater jobs are just a bit cleaner!!

Last edited by BMWFatherFigure; 08-06-2012 at 02:14 PM. Reason: Extra 'and' removed.
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  #4  
Old 08-16-2012, 09:50 PM
RamDog1993 RamDog1993 is offline
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Location: Palm Harbor,FL
 
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Mein Auto: 2000 BMW 740iL
Im not entirely sure. i havent been able to reach the motor at all something is stopping me from removing the dash and i cant exactly figure out where the bolt or whatever it may be is. but basically when the cars on or off no matter what the A/c just wont kick on. even when its on full blast not a single bit of air blows out. what does that sound like it would be to you. im mechanically inclined but electronics aren't so much my thing. Thank you for helping
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  #5  
Old 08-17-2012, 10:56 AM
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dtkw dtkw is offline
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Mein Auto: 740iL
The blower in my 97 is the same. Asked the stealer, they said it could be the blower resisster gone south. Now what? He also said the blower should last as long as the car. He also said the E38 is the most expensive 7 to repair.
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  #6  
Old 10-23-2013, 03:31 PM
pyperdown pyperdown is offline
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Location: Bakersfield, CA
 
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Mein Auto: 1997 740iL E38
Check out this DIY

http://www.bimmerboard.com/forums/posts/45351
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  #7  
Old 10-23-2013, 03:45 PM
Mayorchuck Mayorchuck is offline
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Mein Auto: '96 740iL
Don't let the dash scare you. Follow the DIY above. I have done this twice and will soon do it again on a parts car. Since you live in FL, and have no real football team to watch =), you can do this on a Sunday afternoon. Did you do all the diagnosis before attempting to remove the dash? Here is some info I threw together while doing this on my DD.

http://forums.bimmerforums.com/forum...wer-motor-info

Edit: Just noticed this post was over a year old. Hope all went well for everyone.

Last edited by Mayorchuck; 10-23-2013 at 03:49 PM.
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  #8  
Old 11-03-2013, 03:48 AM
Podmore Podmore is offline
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Quote:
Originally Posted by RamDog1993 View Post
Im not entirely sure. i havent been able to reach the motor at all something is stopping me from removing the dash and i cant exactly figure out where the bolt or whatever it may be is. but basically when the cars on or off no matter what the A/c just wont kick on. even when its on full blast not a single bit of air blows out. what does that sound like it would be to you. im mechanically inclined but electronics aren't so much my thing. Thank you for helping
I bet I know what's stopping you from getting the dash off - you need to pop the passenger airbag cover off to get access to the tether strap which stops the airbag cover from flying out when the airbag goes off. Once you pop the cover off the dash, it will all become clear (small flat-bladed screwdriver gently around the edge of the cover will do the trick). Took me two hours and a lot of unnecessarily removed bolts to figure that out when I was pulling my dash out.

The actual problem with the fan is probably the resistor pack which sits centrally on top of the blower unit.

Last edited by Podmore; 11-03-2013 at 03:50 AM.
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  #9  
Old 11-03-2013, 07:11 AM
chrisn7 chrisn7 is offline
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This is bit a odd discussing an old thread...but the info about the airbag cover is interesting. Once reemoved does it reveal anything othetrthan the airbag? Just wondering if this is a usful 'in' to any other components...
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  #10  
Old 11-04-2013, 02:24 AM
Jonjo Jonjo is offline
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Location: North Wales uk
 
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I went through the same problem I stripped mine back to access the motor only to find the fuse was at fault the fuse had not blown the obvious thing I should have done was to take the fuse and bin it but when I tested it was fine in the fuse box mayorchuck helped me a along the way to do it and as they say don't be frightened to take this job on. Ps don't forget the plastic screw under dash near steering wheel

Last edited by Jonjo; 11-04-2013 at 02:41 AM.
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  #11  
Old 11-04-2013, 06:16 PM
Podmore Podmore is offline
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Location: Adelaide South Australia
 
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Quote:
Originally Posted by chrisn7 View Post
This is bit a odd discussing an old thread...but the info about the airbag cover is interesting. Once reemoved does it reveal anything othetrthan the airbag? Just wondering if this is a usful 'in' to any other components...
Hah. I didn't bother to check the date of the OP before buying in to this discussion ... but in answer to your question, removing the airbag cover only gives you access to the airbag - and of course allows you to get the dash pad off. Everything is pretty tightly packed under there and any access to the blower motor and resistor pack can only be achieved after removal of the complete dash pad.
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  #12  
Old 11-05-2013, 01:39 AM
GMCPaul GMCPaul is offline
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Here's a good link to blower motor replacement
http://www.bimmerboard.com/forums/posts/45351
Paul
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  #13  
Old 11-05-2013, 06:47 PM
flyingkraut flyingkraut is offline
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Location: Norman, OK
 
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Mein Auto: 1998 740i
Did this job myself on my 98 740i not too long ago. It wasn't as difficult as everyone says.
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