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  #1  
Old 10-11-2009, 10:22 AM
Atomic Dog Atomic Dog is offline
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Location: Seattle, WA
 
Join Date: Jun 2008
Posts: 42
Mein Auto: 1995 BMW 740I - E38/M60
95 740 running too cold

I have noticed the past few days that my 95 740i is running too cold. Sometimes on short trips without highway driving, the temp gauge will only reach the 1/4 mark. At times the gauge will make it to the 1/2 or straight up mark, but will fall back again to the 1/4 mark. Also, there have been times when the car idles poorly at stop lights. This poor idle seems to only happen when the temp gauge is showing a low temp. I've checked to coolant and its fine. I haven't checked the thermostat yet, but I've also heard of a coolant temperature sensor located someplace under the hood. Any thoughts on what the trouble could be? Where is the location of this coolant temperature sensor?
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  #2  
Old 10-12-2009, 12:27 PM
dannyc9997's Avatar
dannyc9997 dannyc9997 is offline
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Location: Massachusetts
 
Join Date: May 2008
Posts: 4,366
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Mein Auto: 540i
My bet would be that the thermostat is stuck open. Dont know off the top of my head where the temp sensor is, but check out realoem.com...enter your cars info and look up the part. That will give you a good diagram for the location of the sensor.
  #3  
Old 10-12-2009, 12:29 PM
d geek d geek is offline
diesel evangelist
Location: San Antonio, TX, USA
 
Join Date: Nov 2008
Posts: 2,023
Mein Auto: Camry hybrid + MB e300D-T
classic open thermostat symptoms
 

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