April 27, 2013 01:01PM
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Admin
Registered: 15 years ago
Posts: 584 : Vermont, USA |
I've been listening to the blower motor in my iX chirping and squeaking for a long time, so when it finally died altogether it was no big surprise. I just replaced the blower motor with a new one, and before buttoning everything up, decided to test it. It works perfectly -- in positions 2, 3, and 4. In position 1, there's nothing. Before it died, the old motor was working in all 4 positions. So what is going on? Is this an issue with the new motor? The switch? The resistor?
__________ Dave '91 325iX |
April 27, 2013 04:15PM
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Registered: 15 years ago
Posts: 1,538 |
April 27, 2013 04:25PM
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Admin
Registered: 15 years ago
Posts: 944 : Lake Havasu City, Arizona |
My guess would be the resistor block has one leg that is broken. The wiring diag. shows resistor #1 at 1.6 ohms is probably the culprit.
Maybe the connector to the resistor block just needs to be cleaned. Bob in Lake Havasu Edited 1 time(s). Last edit at 04/27/2013 04:26PM by Bob in Everett. |
April 27, 2013 06:31PM
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Admin
Registered: 15 years ago
Posts: 584 : Vermont, USA |
April 30, 2013 07:22PM
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Admin
Registered: 15 years ago
Posts: 584 : Vermont, USA |
That's exactly what it was. I pulled it out, cleaned the contacts, and tested it -- it worked on all four positions! So I squeezed the cover back on, screwed everything back together, and... position 1 isn't working again. So I went and had a beer and will deal with it again tomorrow. __________ Dave '91 325iX |
April 30, 2013 08:44PM
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Admin
Registered: 15 years ago
Posts: 944 : Lake Havasu City, Arizona |
May 01, 2013 05:03AM
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Admin
Registered: 15 years ago
Posts: 584 : Vermont, USA |
That was going to be my next plan, until this morning when discovered that it's working again! Procrastination pays off once again. I'll keep an eye on it and pull it apart one last time if I have to. __________ Dave '91 325iX |
May 01, 2013 08:15AM
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Registered: 15 years ago
Posts: 1,538 |
May 31, 2013 09:25AM
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Registered: 15 years ago
Posts: 188 : Sunny South Africa |
Hi Guys, I trust you are all well.
Please can someone tell me exactly where this resistor block sits, and how does one get to it? My first three speeds of my blower fan are not working, and I have no doubt it is the resistor block that needs cleaning. I gather it sits under under the vent panel just in front of the windscreen or somewhere, from what I have read, have looked under the black plastic cover against the firewall that houses the fuel pump relay, not there, that I can see. ---------------------------------------------------------------------------------------------------------------------------------- E30'S AREN'T BUILT, THEY'RE CAUGHT IN THE WILD!!! When in doubt, use full throttle, it may not improve the situation, but it will end the suspence. |
May 31, 2013 06:30PM
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Admin
Registered: 15 years ago
Posts: 944 : Lake Havasu City, Arizona |
June 06, 2013 12:12PM
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Registered: 15 years ago
Posts: 797 : Ottawa |
What model year is your car? On my old '86 325 the resistor block was mounted from inside, under the dash, just above the heater valve pipes. On my '90 325i the resistor block clips in to the bottom of the blower fan, accessible through the panel at the back of engine on the firewall. |
June 06, 2013 08:50PM
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Registered: 15 years ago
Posts: 188 : Sunny South Africa |
Ferd, it's a '91 318i, although according to Real OEM the correct diagrams show it as a '90, probably a '90, registered in '91
---------------------------------------------------------------------------------------------------------------------------------- E30'S AREN'T BUILT, THEY'RE CAUGHT IN THE WILD!!! When in doubt, use full throttle, it may not improve the situation, but it will end the suspence. |