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E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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  #1  
Old 06-23-2014, 06:13 PM
hh3uunp's Avatar
hh3uunp hh3uunp is offline
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How to tell if you have a stuck thermostat

Maybe this is me being obsessed with my car but I swear it takes too long to warm up.

I really don't push it over 3k until it's completely warm could my driving style be the problem


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  #2  
Old 06-23-2014, 06:20 PM
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bluebee bluebee is offline
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Mein Auto: 02 BMW 525i M54 auto 130K
Quote:
Originally Posted by hh3uunp View Post
Maybe this is me being obsessed with my car but I swear it takes too long to warm up
This thread has lots of good information and tons of diagrams and explanations ...
- What is the temperature of the coolant & when the thermostat opens under normal conditions (1)
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See also: E39 Bestlinks & How to easily find what you need

Last edited by bluebee; 06-23-2014 at 06:21 PM.
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Old 06-23-2014, 07:02 PM
Burning2nd Burning2nd is offline
Under the lift arms
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Mein Auto: E39 540, E36 328is, E83x3
let the engine run for about 60 seconds..... then off you go..


or from a dead cold... let it idle.. you should see normal temp in 15-20 min no longer..

if the stat is stuck "OPEN" (cause thats what your asking) you wouldnt get heat the guage would stay closer to the blue (left)
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