87 325es Heater A/C fan only blows on speed 4 - BMW Forum - BimmerWerkz.com
3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

 
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#1 (permalink) Old 06-03-2009, 03:56 PM
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87 325es Heater A/C fan only blows on speed 4

Just double checking...since the fan does blow on speed 4 I am assuming the fan is fine and it is the blower switch that needs to be replaced...any confirmations to my theory? thanks

terribleted65 - new to bmw restoration but have restored 63 ford fairlane and 68 mustang conv. I look forward to the bmw experience.
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#2 (permalink) Old 06-03-2009, 04:02 PM
OMFG another one!?
 
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Yup, the resistor needs to be replaced (not the switch itself).

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#3 (permalink) Old 06-03-2009, 04:05 PM
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thanks...I guess I will wait until my repair manual comes in the mail so I can find the resistor :-)

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#4 (permalink) Old 06-03-2009, 04:07 PM
OMFG another one!?
 
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Yeah, it's been a while, but it takes some doing to get to it!

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#5 (permalink) Old 06-03-2009, 08:42 PM
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silversled can only hope to improve
just did this...it is the resistor. The resistor is located in the engine compartment directly above the blower motor. So you have to do exactly the same thing to replace the resistor as you would to replace the blower itself. It is a kind of goofy looking...a series of springs on an arced mounting plate that slides in/out of the blower motor housing....there are no electrical to this thing! Good luck, I replaced mine for $5 from a junk yard after I wrecked the original one in the process of replacing the blower motor. It's tight on the BMW in that heater blower motor area. best of luck
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#6 (permalink) Old 10-05-2009, 05:57 PM
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Well, i bought the resistor and for sure the repair manual is not correct. The repair manual says there is a compartment on the firewall that houses the fan motor and resistor...see the picture included here...i found no compartment. is this darn thing in the cabin for an 87 325es? Thanks for your help.
http://terribleted65.wordpress.com/f...0/dscf2568.jpg

terribleted65 - new to bmw restoration but have restored 63 ford fairlane and 68 mustang conv. I look forward to the bmw experience.
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#7 (permalink) Old 11-29-2009, 03:31 PM
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Fixed - Thanks

Replaced the resistor and all is fixed. Rob at bavauto.com sent me the following link that was PERFECT with the directions to change the resistor. Total time to do the change was 30-45 mins.
BMW E30 Network - Technical: Ventilation only works in high (4) position

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#8 (permalink) Old 11-29-2009, 04:16 PM
OMFG another one!?
 
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Very cool, glad it's sorted and thanks for sharing it!

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