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7 Series - E38 (1995 - 2001)

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  #1  
Old 11-03-2011, 07:30 PM
jeremy888 jeremy888 is offline
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Location: roseville, ca
 
Join Date: Nov 2011
Posts: 1
Mein Auto: 1997 740il
DIY** 1997 740il heating up after replacing stat

I have a 1997 740 up that I took in for a smog check. The emission.s passed fine but I came to find out that it failed due to a sticking thermostat. I never had any issues with the car heating but of course to pass smog I swapped out the stat. After the install I burped the radiatior to be sure of fluid levels. I drove the car to work the next day in the am and everything seemed fine. When I went home that day I got about half a mile from home to see my coolant temp shoot up very fast. I pulled over and let the engine cool. The fluid level is fine which leads me to beleive the thermostat is crap. Any ideas?? This is all I can think of unless there are some other checks I can do to be sure. Thanks for the help.
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  #2  
Old 11-04-2011, 04:55 PM
sleepymartini sleepymartini is offline
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Location: Salt Lake City
 
Join Date: Oct 2008
Posts: 12
Mein Auto: 2001 740 il
I have 2001 740 il and I replaced the the thermostat in mine and it did the same thing for a couple of weeks and then it stopped and is fine now. My only guess would be that the new part has to break in a little bit.
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