Reply With QuoteHad a similar problem,,with my 92 525i,after disassembly, it turned out to be the brushes in the blower motor,,,worn badly. Apparently sometimes making contact and sometimes not...Try disassembling and checking the motor...
2 Grand Master
Fixing my intermittent Blower
So i've now noticed twice my heater A/C blower stops suddenly lately when i shut my drivers door as i am getting in.Its running>shut the door,ok slam it, > the blower cuts out. Can this tell anyone weather i need to replace the console controls, the blower motor or the black box(I don't have the sword!).
Last edited by Jehu; 11-24-2006 at 09:02 PM.
1995 540i Manual build 1/95
Had a similar problem,,with my 92 525i,after disassembly, it turned out to be the brushes in the blower motor,,,worn badly. Apparently sometimes making contact and sometimes not...Try disassembling and checking the motor...
Big, Big Time Poster
You won't have a sword, but it could be the resistor pack. I had intermittant blower problems which occurred when I tried to use any other blower speeds other than 4. I would get air(cold air since it was summer) for a short while then it would cut out for a couple minutes then come back again. Replacing this resistor pack fixed my problem. Sounds like your symptoms are a little different though.
'94 540I 6spd/205000 miles
2 Grand Master
I am just hoping i can begin with replacing the right part and not end up replacing everything. I have an eversion to buying used parts of this nature as if mine have failed i have every reason to expect a similarly aged replacement has every bit as much of a chance of failing .
1995 540i Manual build 1/95
Major Contributor
Forgive my ignorance since mine has a sword, but do resistor packs have an analogous connector portion that could be susceptible to bad/cold solder joints like swords sometimes suffer from? If so, then it would be a simple DIY to reflow the solder -- worth a try.Originally Posted by bbig119
gale
92 735i 5-spd, turbo project finally underway!
2 Grand Master
Is this resistor pack the black box down near where the sword in other models is fitted,where i pulled it out to changed my microfilter or is it the Blue unit that resembles a relay under the driver's dash above the gas pedal?
1995 540i Manual build 1/95
Major Contributor
I'm guessing it's the black one. Have you checked Bruno's page?
http://www.bmwe34.net/e34main/mainte...ical/sword.htm
gale
92 735i 5-spd, turbo project finally underway!
2 Grand Master
Yah,I've checked the site.I know where that black control unit is ,i encountered it when changing the micro filter.The intermittent problem was present before i did that so i don't think i disturbed the connection there.I just thought mentioning that the blower shut off when i slammed my drivers door shut would ring a bell with someone and pinpoint the culprit.Obviously wishful thinking..
1995 540i Manual build 1/95
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