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#1
07-15-2011, 10:35 AM
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Fan Speed Setting in Auto?
Thanks Gregg 
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#2
07-15-2011, 11:21 AM
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Can you vary the speed in manual setting? Does the fan continue to run after you switch off the vehicle?
You may need to do a search on Final Stage Resistor (FSR) as it may need changing. Easy DIY. (See ARTICLES at page top.)
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Sent via Telegraph Wires using my Morse Key. 2021 X5 xDrive40i 2015 X5 xDrive35i MSport (Traded) 2013 X5 xDrive35i
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#3
07-15-2011, 12:31 PM
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After further looking the fan speed settings are working but my ac blows erratically during the dirt 5-10 minutes on a hot day in auto. I would think it would blow hard and consistent then taper off as the temps in the car stabilize. Its nice and cold but seems to hunt for the right blow speed initially. After 5-10 minutes it seems to stabilize the speed. Hope this makes sense. Thank for any advice. Gregg
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#4
07-15-2011, 01:06 PM
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Ok while it is fresh in my mind. I seem to have an intermittent fan speed control issue in auto and manual. In auto fan speeds were erratic and not represented on fan speed indicator. However after cycling between MAX and Auto a few time operations were perfect in Auto and manual. Not sure what component is intermittent but which ever controls fan speed might be. Any advise is greatly appreciated. Sorry the difficult problem description. Gregg
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#5
07-15-2011, 03:27 PM
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Quote:
By far I'm no expert, but the FSR (Final Stage Resistor) on the X5 seems to be a common problem and may warrant some scrutiny. Check out this link and see if it sorta matches what you are experiencing. http://www.xoutpost.com/articles/x5/...nt-bmw-x5.html
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2006 4.4i Sport Black on Truffle Brown, Premium and Cold Weather, Navigation, Rear Entertainment System GO DAWGS!!!
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#6
07-15-2011, 04:58 PM
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If it doesn't blow high speed right away, that can be normal. Unless the system has cold (or hot, as the case may be) available, you won't get full fan speed.
Apart from that, incorrect fan speed is most likely caused by the FSR. It usually fails in a mode that leaves the fan on. It is a solid state component (not just a resistor) and as noted above, is easy to replace.
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2007 X3 3.0si, 6 MT, Premium, White Retired: 2008 535i, 6 MT, M Sport, Premium, Space Grey 2003 X5 3.0 Steptronic, Premium, Titanium Silver 2002 325xi 5 MT, Steel Grey 2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue
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#8
07-23-2011, 04:32 PM
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R&R'd the Blower Regular using the DIY AthensGuy recommended and it went perfect. Took me about 1.5 hours probably because the darn heat. The DIY was very accurate. I wouldn't change a thing. Thanks!!!
Last edited by greggw2gs; 07-24-2011 at 09:31 PM.
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