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Old 09-29-2003, 10:06 PM   #1
jello_g
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Temp on on-board computer reads 50 Celsius

The on-board computer on my 325ix has been indicating an outside temperature of 50.0 degrees Celsius for a few weeks now. It stays at 50 regardless of what the actual temp is. What is causing this? Is it the outside temperature sensor at fault? The on-board computer module perhaps? I've simply ignored the fault in the past, but would like to have accurate temp readings now on since colder weather is coming. Anybody see this one before?
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Old 09-29-2003, 11:08 PM   #2
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It is probably the outside temperature sensor is pooched. My e30 stays at
-30.0C all the time and it is busted.
Jay
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Old 09-30-2003, 02:03 PM   #3
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I've seen mine read 54.5. Having the aux fan let go in a massive 401 traffic jam is NOT safe.

It's your sensor.
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Old 10-01-2003, 11:54 AM   #4
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Yup, I better check the outside temp sensor first. I think it's a pretty cheap part too but I'm having a difficult time identifying the part no.

Mystikal, you got me a bit confused. You're suggesting the functioning of the aux fan is dependent on the outside temp sensor?
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Old 10-02-2003, 12:19 PM   #5
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Quote:
Originally posted by jello_g
Mystikal, you got me a bit confused. You're suggesting the functioning of the aux fan is dependent on the outside temp sensor?
Oh, no, I mean the heat from the engine actually caused the sensor to read that high.
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Old 10-02-2003, 11:44 PM   #6
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Quote:
Originally posted by Jays_Arctic323is
It is probably the outside temperature sensor is pooched. My e30 stays at
-30.0C all the time and it is busted.
Jay
same here
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Old 10-06-2003, 12:16 AM   #7
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Yep, I gotta have a look at that, it is handy having an outside temp....Time to read the good old Hanes Manual!
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Old 10-06-2003, 12:48 AM   #8
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I've got the Bentley Service Manual for BMW 3-Series (E30), but nowhere in there does it explain how to replace the ambient temperature sensor. Does the Haynes cover this for the E30?
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Old 10-17-2003, 08:27 PM   #9
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I've got a new sensor ready to replace the old. Now I just have to find where in the engine compartment this sucker goes. Anybody have a clue?
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Old 10-17-2003, 11:39 PM   #10
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Quote:
Originally posted by jello_g
I've got a new sensor ready to replace the old. Now I just have to find where in the engine compartment this sucker goes. Anybody have a clue?
Call Autotrend (BMW specialists) at 416-696-2277. Great guys, they'll fill you in.
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