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E63 / E64 6 Series (2003 - 2013)
The E63/E64 BMW 6 Series builds on BMW's sporty heritage with aggressive lines and an incredible motor to back the design up. Available in coupe and convertible trims with a standard 4.8 liter engine producing 360 horsepower and 360 lb-ft of torque, the 6-series is a popular choice that exceeds expectations.

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  #1  
Old 04-24-2013, 09:19 AM
SHOWOUT_645 SHOWOUT_645 is offline
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Location: markham
 
Join Date: Jun 2010
Posts: 88
Mein Auto: BMW 645CI
Thermostat

I have had to change my thermostat for about 3 months now, and I just keep prolonging it, is it doing any harm to the car>
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  #2  
Old 04-24-2013, 01:58 PM
HerbP HerbP is offline
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Location: Georgia
 
Join Date: Jul 2009
Posts: 2,636
Mein Auto: 2005 645Ci & 2007 750Li
As long as the engine is not running hot, there should be no problem. The thermostat will effect the way the engine runs.
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  #3  
Old 04-25-2013, 09:02 PM
dubzz24 dubzz24 is offline
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Location: Vancouver, BC
 
Join Date: Jul 2012
Posts: 10
Mein Auto: s54 M Coupe, e63 650i 6mt
If the thermostat is stuck open then it can cause engine wear (as fluids are not up to operating temperature and metals will not be fully expanded) as well as increased fuel consumption / emissions.

What makes you think the thermostat is stuck open?
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  #4  
Old 04-26-2013, 07:36 PM
HerbP HerbP is offline
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Location: Georgia
 
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Mein Auto: 2005 645Ci & 2007 750Li
The thermostat can throw random codes while it's failing. It does not have to be stuck open, to throw the code. This is a common failure.
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  #5  
Old 08-29-2013, 07:32 PM
Byrdman1212 Byrdman1212 is offline
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Location: Northern California
 
Join Date: Mar 2012
Posts: 21
Mein Auto: 2000 323i,
I heard that there were two thermostats on my 07 650? Is this true?

btw - I heard this from the service guy at the dealership. I don't trust a thing they tell me so I thought I would ask my friends here.

Background: I am having overheating problems, changed tank, radiator cap, and thermostat. The problem still exists, so I went to the dealership to schedule a diagnostic appointment. The guy asked me if I changed "both" of the thermostats......
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Old 08-29-2013, 07:34 PM
Byrdman1212 Byrdman1212 is offline
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Location: Northern California
 
Join Date: Mar 2012
Posts: 21
Mein Auto: 2000 323i,
Unhappy Thermostat(s)

I heard that there were two thermostats on my 07 650? Is this true?

btw - I heard this from the service guy at the dealership. I don't trust a thing they tell me so I thought I would ask my friends here.

Background: I am having overheating problems, changed tank, radiator cap, and thermostat. The problem still exists, so I went to the dealership to schedule a diagnostic appointment. The guy asked me if I changed "both" of the thermostats......

Confused in AZ.....
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  #7  
Old 08-29-2013, 07:35 PM
HerbP HerbP is offline
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Location: Georgia
 
Join Date: Jul 2009
Posts: 2,636
Mein Auto: 2005 645Ci & 2007 750Li
There is a thermostat for the engine, & another one for the transmission.
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