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melas 
Newbie 
Joined: 24-July-2005 Location: burton on trent Status: Offline Points: 2 |
 Topic: 1994 bmw 740i heater blower not workingPosted: 24-July-2005 at 13:52 |
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hi there i have recently purchasede a 740 and the heater blower was working and now it has stopped can any one tell me what the problem is i have checked the fuse and they are all ok . i have had people teeling me it may need a neww condenser or new motors can any one help this is the first time i have used this site so please bear with me |
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omega man
Groupie
Joined: 05-July-2005 Status: Offline Points: 90 |
Posted: 24-July-2005 at 13:58 |
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hi, it needs a new heater rad, cheap to buy for bugger to fit.
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melas
Newbie
Joined: 24-July-2005 Location: burton on trent Status: Offline Points: 2 |
Posted: 24-July-2005 at 14:03 |
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how much are the heater rads and is it behind the dash
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shogun
Really Senior Member II 
Joined: 22-February-2005 Location: Tokyo/Japan Status: Offline Points: 564 |
Posted: 24-July-2005 at 14:12 |
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The heater blower/fan is controlled by the socalled sword, which sits behind the front console. The radiator has nothing to do with that. Read this here, the sword can be repaired. Another problem area could be the IHKA module, which sits behind the sword and control the complete heating and cooling system. Also this one has a capacitor which sometimes fails. All connections should be resoldered due to old solderings becoming bad.
http://www.bmwe34.net/e34main/maintenance/electrical/sword.h tm |
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1994 bmw 740i heater blower not working
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