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7 Series - E65 / E66 (2002 - 2008)
Discussion of BMW's 4th generation E65/E66 7 Series flagship. The E65 generated much controversy, due to its radical styling and iDrive user difficulties. Nonetheless, the E65 broke records to become the best-selling 7-series iteration ever, especially after its 2005 facelift.

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Old 03-26-2013, 04:41 PM
ez64 ez64 is offline
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Location: UK
Join Date: Mar 2013
Posts: 2
Mein Auto: 740i
Low temp thermostat

Hey All,

Had a couple of e38's now and selling my current as I had a ride in my friends e65 and it was awesome.

After reading up a hell of a lot on them I have whittled it down to not buying it because of the stupid factory temps they run along with the m62 which burn out seals left right and center/knacker coolant systems without giving any real benefits over say 90-95c other than to fill dealerships wallets.

I did try to find the DIY or where to buy the required parts for the lower temp thermostat or DME flash settings but I could not

If anyone could enlighten me that would be great and I can get on with throwing money on a non diesel E65!
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Old 03-26-2013, 05:34 PM
Gadget760Li's Avatar
Gadget760Li Gadget760Li is offline
Location: St Leonards on Sea
Join Date: Apr 2012
Posts: 158
Mein Auto: BMW 760Li
I took my E65 up to 168000 miles and never had any problems and still sold it for 5000+ (and that was also due having all the papers and servicing from BMW dealerships.
I would go for it look for an Li
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Old 03-27-2013, 04:21 AM
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dolfan13 dolfan13 is offline
Officially Welcomed to the 'Fest
Location: lexington,ky usa
Join Date: Jan 2011
Posts: 1,147
Mein Auto: 545i
I modified the stock tstat to run the car at 95c.Funny you ask as I have been contemplating this mod for awhile and only changed a week ago.Car has been running great and seems to keep that better throttle response it has before full heat up.Im going to do a UAO in a few thousand miles to see any unusual wear.
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Old 03-27-2013, 08:45 AM
Ghettobird209 Ghettobird209 is offline
Registered User
Location: Modesto
Join Date: Dec 2012
Posts: 71
Mein Auto: 2006 BMW 325i
Your welcome........ Lol
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Old 04-01-2013, 11:42 AM
cphig cphig is offline
Registered User
Location: lasvegas
Join Date: Dec 2012
Posts: 3
Mein Auto: bmw745li
how can I modify my thermostat to run cooler?
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