Subject: Re: Intermittent a/c blower motor problem Author: neal : 5 posts Posted on: 2008-01-03 16:44:56

It was difficult to find this link - but a detailed procedure for the Z3 resistor pack fix is provided in the August 2006 newsletter of the Alabama BMW club at www.albmwcca.org.
It took me 45 minutes and is quite straightforward. I would like to make a few clarifications:
1. Use a couple of solid knives to remove the 8 clips delicately (each comes out in two halves- first the top layer and then the bottom)
2. You need to remove the wipers but NOT the wiper assembly to access the blower box.
3. The resistor pack is upside down on the bottom of the blower. The pack slides out with a nose plier towards you, 45 degrees up.
4. The mode of failure is usually fatigue of the copper rivet which loosens marginally over time (the loose one of the 4 which serves as the common contact for all 3 resistor coils). In this case you don't need a new part. Delicately hammer the cap of the rivet while supporting underneath.
(I also soldered to make sure I don't visit there again)

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  • Re: Intermittent a/c blower motor problem - sharky 2005-09-17 13:37:26 (2405 views)
    • Re: Intermittent a/c blower motor problem - neal 2008-01-03 16:44:56 (936 views)
      • Re: Intermittent a/c blower motor problem - sailorbox 2009-10-11 20:12:32 (109 views)