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General E46 Forum
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Old 07-19-2011, 04:06 PM   #1
Kaboom
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Location of cabin air temp sensor

Anyone know? Search didn't pull anything up. Thanks! 04 330 with auto climate control.
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Old 07-19-2011, 04:09 PM   #2
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its the little slots on the front of the HVAC control. there is a fan that draws air across the sensor. it can clog up with dirt and need to be cleaned. There should be a write up or two, but its painfully simple.
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Old 07-19-2011, 04:15 PM   #3
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blow it out with a can of compressed air.
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Old 07-19-2011, 04:17 PM   #4
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How do you pull the face of the climate control off? Don't want to break anything! I have a new sensor here just to be sure. Thanks for the responses!
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Old 07-19-2011, 04:39 PM   #5
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actually, I lied, its not that easy unless there is a way to get it out without removing the radio? If not, remove the radio following the instructions, then the HVAC control pops out . You can actually remove the fan assembly from the rear of the unit without disassembling anyting. Blow it out with compressed air, then I think I hit my sensor with MAF cleaner.

mind if I ask why you are replacing?
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Old 07-19-2011, 05:16 PM   #6
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Wow so I need to remove the entire nav thing in order to get the face of the HVAC unit off?

I was experience very occasional less than perfect climate control, so as is my style, I'm replacing the resistor pack for the blower and the cabin temp sensor. Not seeing an easy way to get this thing out, not much on a search, either.

Ian
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Old 07-19-2011, 05:21 PM   #7
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The good News is that once the radio is out it's pretty simple. I wouldn't replace the motor just clean it
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Old 07-19-2011, 06:22 PM   #8
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It isn't the motor, just the sensor. Thanks for the help!
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Old 07-19-2011, 09:21 PM   #9
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Where do you get the sensor from? The sensor (some kind of thermistor) is soldered onto the HVAC module pcb.
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Old 07-20-2011, 11:23 AM   #10
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I purchased it from the dealer. It is a couple inches long and plastic. Anyone have any good pics on how to remove the climate control face? Changing that resistor for the blower definitely stabilized performance, even though it was working well before.
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Old 07-21-2011, 09:09 PM   #11
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Quote:
Originally Posted by Kaboom View Post
I purchased it from the dealer. It is a couple inches long and plastic. Anyone have any good pics on how to remove the climate control face? Changing that resistor for the blower definitely stabilized performance, even though it was working well before.
Does it looks like #1 in the picture attached? If yes, it is not cabin temp sensor. It's outside or ambient temp sensor. Mounted under the front bumper driver side NOT inside your HVAC control module.
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Old 07-22-2011, 08:17 AM   #12
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Quote:
Originally Posted by jgold47 View Post
its the little slots on the front of the HVAC control. there is a fan that draws air across the sensor. it can clog up with dirt and need to be cleaned. There should be a write up or two, but its painfully simple.
I've cleaned the front of the sensor grill with a toothbrush, removed lots of embedded dust.
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Old 07-22-2011, 05:55 PM   #13
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Quote:
Originally Posted by Kaboom View Post
I purchased it from the dealer. It is a couple inches long and plastic. Anyone have any good pics on how to remove the climate control face? Changing that resistor for the blower definitely stabilized performance, even though it was working well before.
You bought an outside temp sensor. Part number ends in a 133 doesn't it? If the outside temp sensor is missing or bad it can cause the compressor to not to kick on. There is not a replaceable interior temp sensor, at least not one made by BMW.
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Old 07-25-2011, 11:59 AM   #14
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The part number I got was 64-11-6-930-015

My outside temp sensor is working just fine, I know they get hit a lot being in the fender. Also, my climate control is working fine too, I'm just anal about maintenence. I still haven't tried to put it in, but looks like there is nothing to put in.

Thanks!
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