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X3 E83 (2004 - 2010)
Talk about the E83 BMW X3 in this forum!

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  #1  
Old 06-25-2011, 05:56 AM
cherri cherri is offline
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Location: Milford, CT
 
Join Date: Jun 2011
Posts: 2
Mein Auto: Beautiful x3 3.0 Red
Climate Control no Power, Heat/AC Problems

A series of unfortunate problems is plaguing me with my 2005 x3 and has really made me debate getting rid of the car. I'm hoping to get advice on next steps:

The A/C compressor failed (discharging coolant) and a few weeks later the pulley seized up on the compressor and the belt broke. When the pulley seized up and belt broke, my climate control would no longer power on and the car constantly pumps heat into the footwell, especially when on the interstate for faster and longer drives. It literally burns my legs.

I purchased a replacement climate control module and A/C compressor from a salvage yard, figuring that I could replace the climate control to at least have defrost and control the heat then have a garage change the compressor, fix the belt and recharge the coolant, etc.

The new climate control did not behave any differently after installation. I was very careful to ensure all wires are completely plugged in, etc.

I have checked all of the fuses in the glove box and the garage checked the "engine" fuses (telling me that I'd need to replace the climate control).

I have diligently searched the forums looking for thoughts on where to turn next... some thoughts include replacing the FSU, or trying the car with the heat valve disconnected...

I am not sure if I should have the garage replace the A/C compressor and such or continue to repair the climate control module problem since obviously I cannot turn on A/C without a working climate control panel.

Thank you for your suggestions!
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  #2  
Old 06-25-2011, 08:05 AM
UncleJ UncleJ is offline
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Location: Silicon Valley
 
Join Date: May 2006
Posts: 6,596
Mein Auto: '09 Cayenne "S"
Cher -- what a way to start the week end! Sounds like you are off to a good start but need some professional help to get the job finished. A good BMW indy would be my suggestion to install the compressor and climate control module correctly. You might also have gotten a bad module from the salvage yard too. In my experience (not recent I must add) the yard will usually replace the module without much problem if it is defective. Let us know how it all turned out. Good luck!
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  #3  
Old 06-26-2011, 12:26 AM
cherri cherri is offline
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Location: Milford, CT
 
Join Date: Jun 2011
Posts: 2
Mein Auto: Beautiful x3 3.0 Red
Update.... blowing fuse #63

Well, the saga continues!!!

UncleJ, thanks for the advice, and I suppose you are right that I will need help with the A/C compressor!

After searching for hours and hours last night, I did find some entries in the forums about fuse #28... I was pretty convinced that there were sonme electrical problems going on, so I decided just for "grins" to recheck #28. I had checked ALL of the fuses, and the dealership checked the fuses and the engine fuse, but I figured it was worth any effort I could make.

I pulled the fuse card and fuse #28 is listed for A/C, along with 62 and 63. 28 was fine. So, I pulled 62 and 63 to check them as well... 63 is a 7.5 and it was blown I replaced it with a new fuse, put the key in and voila, I had climate control. Since I had the dash apart anyway, I put the original climate control module back in and it worked as well!!

I tried a few other things that I had been having problems with, including the wipers (still not parking right) and the drivers seat heat (wouldn't stay on before). At some point before leaving my driveway I noted that the climate control had failed again. Investigating #63 showed it had failed. So I was off to the parts store for some more fuses.

I replaced the fuse, and bought a tester to test all the fuses without removing them, all fuses tested fine.

I left the radio, wipers, seat heat off and did not plug anything into the cigarette lighter. The climate control worked all day today.

Tomorrow I have to be in the car for 9 hours, so having no heat burning my legs will be AWESOME! I intend to run a controlled test throughout the day to see if I can figure out what is blowing the fuse.

Next week I will have the indy shop put the new A/C compressor in and I'm looking forward to having working heating and cooling again, and to removing the duct tape that was serving as somewhat of a barrier to the burning leg heat.

Thanks for your support and I'll keep you all informed as my tests continue.

I can tell you that I'm so glad I did not have the dealership replace the climate control ($600 in parts and $500 in labor). They also wanted $1600 for the A/C compressor. I hope to get out of it for under $600.

I may just fall back in love with my beemer after all
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  #4  
Old 03-03-2015, 10:39 AM
djyoungin djyoungin is offline
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Location: new york
 
Join Date: Mar 2015
Posts: 3
Mein Auto: bmw x5
I have a bmw x5 2005 changed the battery but accidentally placed the terminals on the wrong battery outlet after realizing and correcting my mistake went and started up my truck everything works fine until i noticed that i have no power in my radio and my heat control unit i went to to have the fuse checked and was told its not the fuse have no idea what the problem is if its not the fuse any advice? ??
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  #5  
Old 03-03-2015, 10:47 AM
djyoungin djyoungin is offline
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Location: new york
 
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Posts: 3
Mein Auto: bmw x5
my 2005 bmw x5 i changed the battery but accidentally placed the terminals on the wrong outlets on the battery after i fixed my stupid mistake i went stared up my truck it stared everything seemed fine but i realized that there was no power in my radio and my heat control unit but there is power in everything else and a mechanic from a repair shop inspected the fuse box and told me its not the fuses so please can i get some advice...
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  #6  
Old 03-04-2015, 08:29 AM
Supercourse Supercourse is offline
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Location: British Columbia, Canada
 
Join Date: Feb 2008
Posts: 3,702
Mein Auto: 2004 X3 2.5i
Not sure anyone on this forum has gone through the same the thing - or will admit to it.

So advice might be hard to come by.

The fuses are there to protect against current overload, not reverse polarity, so that's why that was never going to help.

Not surprised the radio blew as it draws a small amount even with the key out. You can look for a good used one on ebay for about $100.

I think you need a good auto-electric tech. to look for what needs doing with the climate control and anything else that hasn't made itself known yet.

You were lucky that at least it starts and runs well.
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  #7  
Old 03-04-2015, 11:09 AM
DangermouseX3 DangermouseX3 is offline
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Location: Atlanta GA
 
Join Date: Aug 2013
Posts: 393
Mein Auto: 2007 X3
If it were me, I'd do a reset procedure first (i.e. disconnect the battery in the trunk and join the cables together for 10 minutes - don't close the trunk while they are connected as you had a power door lock )

It is normally for resetting miscellaneous codes and issues, and there is just the outside possibility that the radio and/or HVAC units are self protecting themselves and this would reset them.

I have no idea if this will achieve anything, or fix your issues, but it's certainly worth a shot. Can't make it any worse

(to be absolutely clear - I don't mean join the terminals of the battery together, that would be very bad. Just the cables going into the car)
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Last edited by DangermouseX3; 03-04-2015 at 11:10 AM.
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  #8  
Old 03-08-2015, 05:05 PM
djyoungin djyoungin is offline
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Location: new york
 
Join Date: Mar 2015
Posts: 3
Mein Auto: bmw x5
i got it fixed took it to a bmw specialist and it was a fuse so everything is perfect
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  #9  
Old 06-02-2016, 11:44 AM
Amandajenn Amandajenn is offline
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Location: Knoxville, TN
 
Join Date: Jun 2016
Posts: 1
Mein Auto: 2005 BMW X5
Hi! Do you mind telling which fuse you were able to replace to get it all working again? Brainchild did the same thing - I was using a marine battery for short trips until my new alternator came in and was in a hurry going to church in Easter and hooked the cables up backwards... Since then I have had heat blowing continuously... It's horrible in a Tennessee summer, but it's like my legs have there own personal sauna in the car... We haven't been able to find a blown fuse but I'm hopeful your fix might work for me! :-)
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