help! ac not working!

jchiu09 · 04-06-2010, 05:48 PM

Hi, I'm newly registered but look around for mod help and ideas.

I drove my 08 e90 today for the first time in a couple of days. Today was really hot, so I tried to turn on the AC but it's not working at all.

Could it be a blown fuse?
I'm not getting any error codes from my car, so I'm lost about what I should do.

My trunk light also doesn't light up when I open the lid, if that is in any way related.

Thanks in advance for the help!

e90pilot · 04-06-2010, 11:02 PM

The trunk light is definitly not related. I had an AC problem when my car was brand new. The compressor impeller failed and sent little pieces of plastic through the plumping damaging components along the way. The compressor and expansion valve were replaced under warrenty.

jchiu09 · 04-07-2010, 08:07 AM

Hm, what i meant was that the actual ac/heat control panel doesn't turn on. None of the buttons worked.
The heated seats also don't work.
Any ideas?

e90pilot · 04-07-2010, 12:28 PM

Fuse or control module must have died. I'm not sure if one module controls the AC panel and heated seats though. Did it go out all at once?

jchiu09 · 04-07-2010, 05:47 PM

Yeah, it went out all at once.
I'm inclined to say that the trunk light is related to this;
What happened was my friend decided to see what kind of bulb the trunk light used. He didn't take out the housing properly and the light just stopped working.
It's after this happened that the A/C and heated seat modules stopped turning on.

Anyway, could I fix this myself? I'd really rather not take it to anyone for this problem, especially if it were just a blown fuse.

e90pilot · 04-07-2010, 07:08 PM

Sounds like a fuse. I don't know where the fuse box is though.

OlivaresAnthony · 04-07-2010, 07:47 PM

I believe the fuse box is in the back of the glove compartment. There is a little cover you remove to get to the fuses.

jchiu09 · 04-07-2010, 08:42 PM

All right.

Does anyone know what fuse it is?
Also, is there anything different about BMW fuses or can I get them at a regular auto store?

04-06-2010, 05:48 PM	#1
jchiu09 New Member 0 Rep 5 Posts Drives: 08 e90 Join Date: Apr 2010 Location: Atlanta, GA iTrader: (0)	help! ac not working! Hi, I'm newly registered but look around for mod help and ideas. I drove my 08 e90 today for the first time in a couple of days. Today was really hot, so I tried to turn on the AC but it's not working at all. Could it be a blown fuse? I'm not getting any error codes from my car, so I'm lost about what I should do. My trunk light also doesn't light up when I open the lid, if that is in any way related. Thanks in advance for the help!
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04-06-2010, 11:02 PM	#2
e90pilot Freight Dawg 104 Rep 2,103 Posts Drives: E90 325i Join Date: Jul 2005 Location: Oakland, CA iTrader: (3)	The trunk light is definitly not related. I had an AC problem when my car was brand new. The compressor impeller failed and sent little pieces of plastic through the plumping damaging components along the way. The compressor and expansion valve were replaced under warrenty. __________________ --Marcelo '06 Arctic Metallic 325i \| Sport Package \| 6MT \| Dinan Stage III suspension \| Dinan exhaust \| 330i manifold swap! Click here! \| Active Autowerke tune \| 135i Brake Calipers \| Deiselboost caliper brackets \| E46 M3 front rotors
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04-07-2010, 08:07 AM	#3
jchiu09 New Member 0 Rep 5 Posts Drives: 08 e90 Join Date: Apr 2010 Location: Atlanta, GA iTrader: (0)	Hm, what i meant was that the actual ac/heat control panel doesn't turn on. None of the buttons worked. The heated seats also don't work. Any ideas?
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04-07-2010, 12:28 PM	#4
e90pilot Freight Dawg 104 Rep 2,103 Posts Drives: E90 325i Join Date: Jul 2005 Location: Oakland, CA iTrader: (3)	Fuse or control module must have died. I'm not sure if one module controls the AC panel and heated seats though. Did it go out all at once? __________________ --Marcelo '06 Arctic Metallic 325i \| Sport Package \| 6MT \| Dinan Stage III suspension \| Dinan exhaust \| 330i manifold swap! Click here! \| Active Autowerke tune \| 135i Brake Calipers \| Deiselboost caliper brackets \| E46 M3 front rotors
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04-07-2010, 05:47 PM	#5
jchiu09 New Member 0 Rep 5 Posts Drives: 08 e90 Join Date: Apr 2010 Location: Atlanta, GA iTrader: (0)	Yeah, it went out all at once. I'm inclined to say that the trunk light is related to this; What happened was my friend decided to see what kind of bulb the trunk light used. He didn't take out the housing properly and the light just stopped working. It's after this happened that the A/C and heated seat modules stopped turning on. Anyway, could I fix this myself? I'd really rather not take it to anyone for this problem, especially if it were just a blown fuse.
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04-07-2010, 07:08 PM	#6
e90pilot Freight Dawg 104 Rep 2,103 Posts Drives: E90 325i Join Date: Jul 2005 Location: Oakland, CA iTrader: (3)	Sounds like a fuse. I don't know where the fuse box is though. __________________ --Marcelo '06 Arctic Metallic 325i \| Sport Package \| 6MT \| Dinan Stage III suspension \| Dinan exhaust \| 330i manifold swap! Click here! \| Active Autowerke tune \| 135i Brake Calipers \| Deiselboost caliper brackets \| E46 M3 front rotors
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04-07-2010, 07:47 PM	#7
OlivaresAnthony Colonel 101 Rep 2,095 Posts Drives: 2019 Toyota Tacoma TRD OR 4x4 Join Date: Nov 2009 Location: San Diego, CA iTrader: (6) Garage List 2019 Toyota Tacoma ... [0.00] 2015 BMW 535i [0.00]	I believe the fuse box is in the back of the glove compartment. There is a little cover you remove to get to the fuses. __________________ E90 325i\|Sparkling Graphite Metallic\|Steptronic\|Black Leatherette/Dark Burl Interior\|OEM Alarm\|35%Front/5%Rear Tint\|RD LED License Plate Lights\|Rear Fogs Activated\|Debadged\|Smoked Sidemarkers\|Blacklines\|Depo P90v2\|Matte Black Grille\|BMS PBX\|AFE Drop In\|Charcoal Filter Delete\|Air Scoops\| RM Silicone Intake Hose\| Magnaflow 14815\| 19" Avant Garde M310\|Continental DWS\|M3 Lip Spoiler
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04-07-2010, 08:42 PM	#8
jchiu09 New Member 0 Rep 5 Posts Drives: 08 e90 Join Date: Apr 2010 Location: Atlanta, GA iTrader: (0)	All right. Does anyone know what fuse it is? Also, is there anything different about BMW fuses or can I get them at a regular auto store?
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