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Old 10-31-2012, 08:25 PM
taibanl taibanl is offline
Officially Welcomed to the 'Fest
Location: Syracuse
Join Date: Oct 2010
Posts: 279
Mein Auto: 335d (e90)
I used the obc (hidden) coolant temp when i was bmw cca even at watkins glen. I noticed only +20c variation. I think to some extent BMW have determined its less necessary for diesel due to thermal efficiency.

Not saying i wouldn't want one, just saying it may be exceedingly rare for the D to have temp issues
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