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Old 07-13-2011, 05:32 PM   #6
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Join Date: Aug 2006
Location: New Brighton MN
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My Ride: 2000 E46 with 254K
Originally Posted by dirsh View Post
wtf it sounds like the first mechanic was replacing random things
I don't even know what the solar or AUC sensors do, but I do know the final stage resistor has nothing to do with the a/c being hot or cold. It controls the blower fan speed. Once the right side vents start blowing warmer, you know you are low on refrigerant and may have a leak. If you put some dye in the system and no leaks are visible on any lines, the evaporator is mot likely the problem. My evap failed twice, so I know
AUC WOULD NOT DO ANYTHING FOR AC. Solar sensor could cause ac issues.

Final stage again as long as the blower is working has nothing to do with it.

Sounds more like an incompetent mechanic than fraud

Seth Thorson
Service Manager/BMW Tech
JB Eurotech Service "Your Reasonable Dealer Alternative"

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