Quote:
Originally Posted by anthonytexas
I've been reading alot about my AC issues and everything points to the AUX fan not working properly. You know, the "my AC won't blow out cold air until the engine is driven for about 5-10 minutes" issue. It is not that my AUX isn't working because it does eventually spin and blow out the cold air. I tested it and see that it does spin (and stop when the engine shuts off). So in this DIY, I noticed that you pull out the AUX fan switch to 'clean it' and put back in. I'm wondering if my issue is more along the line of the AUX fan switch being faulty and not the fan itself. I don't want to replace the fan if only to find out that something else was causing the fan not to kick on when the engine is cold. Wonder if there is a way to test this.
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In this DIY I did clean up the switch and replaced the o ring. One way to test would be to unplug it. If the behavior doesn't change then you know its likely faulty.
2002 Sterling Gray Metallic M5
2006 Shwarz Black Metallic X5 3.0