Z4 2004 a/c, blower, defroster stop working

BigMick33 · 09-22-2024, 01:24 PM

Hi there. The A/C, blower and defroster suddenly stopped working. My battery had dies so i charged it up overnight. Since then the a/c, blower and defroster wont work. Everything else seems fine. Any solutions are greatly appreciated. Thanks, BigMick!

mlquillin · 09-23-2024, 09:20 PM

Quote:

Originally Posted by BigMick33

Hi there. The A/C, blower and defroster suddenly stopped working. My battery had dies so i charged it up overnight. Since then the a/c, blower and defroster wont work. Everything else seems fine. Any solutions are greatly appreciated. Thanks, BigMick!

Sounds like a fuse. Not sure which one but it would be an easy fix so check that first. Good luck!

OneFastMac · 12-27-2024, 10:29 AM

Any other electronics not working? Roof? Windows? Interior lights? Radio?
Could be in "Transport Mode" since the battery died. This is common and needs to be reset using software. A dealership could take care of it or you can DIY if you have the proper kit.

GuidoK · 12-27-2024, 10:44 AM

If it's not a fuse, it's probably the blower motor resistor.
https://www.pelicanparts.com/techart...or_Testing.htm
https://www.pelicanparts.com/techart...eplacement.htm

09-22-2024, 01:24 PM	#1
BigMick33 Registered 0 Rep 2 Posts Drives: Z4 2004 Join Date: Sep 2024 Location: 10541 iTrader: (0)	Z4 2004 a/c, blower, defroster stop working Hi there. The A/C, blower and defroster suddenly stopped working. My battery had dies so i charged it up overnight. Since then the a/c, blower and defroster wont work. Everything else seems fine. Any solutions are greatly appreciated. Thanks, BigMick!
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12-27-2024, 10:29 AM	#3
OneFastMac New Member 22 Rep 18 Posts Drives: 2004 BMW Z4 3.0i Join Date: Nov 2022 Location: Wichita, KS iTrader: (0)	Any other electronics not working? Roof? Windows? Interior lights? Radio? Could be in "Transport Mode" since the battery died. This is common and needs to be reset using software. A dealership could take care of it or you can DIY if you have the proper kit. __________________ 2004 3.0i manual roadster
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12-27-2024, 10:44 AM	#4
GuidoK #buildnotbought 14425 Rep 5,579 Posts Drives: Z4 3.0i ESS TS2+ Join Date: Jul 2012 Location: Tinkering in the garage iTrader: (0)	If it's not a fuse, it's probably the blower motor resistor. https://www.pelicanparts.com/techart...or_Testing.htm https://www.pelicanparts.com/techart...eplacement.htm __________________ Z4 3.0i \| ESS TS2+ supercharger \| Quaife ATB LSD \| Brembo/BMW performance BBK front/rear \| Schrick FI cams \| Schmiedmann headers+cats \| Powerflex/strongflex PU bushings \| Vibra-technics engine mounts \| H&R anti rollbars \| KW V3 coilovers/KW camber plates \| Sachs race engineering clutch \| tons of custom sh#t
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