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      03-14-2013, 02:50 PM   #4
2007NC335i
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Drives: 2007 335i
Join Date: Mar 2013
Location: Cary, NC

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PA - Thanks for the video - that is very helpful. I'll attempt to take the intercooler off this weekend. As I have 2 cars, my 335 only has 45K miles on it, so the water pump, presumably, should be good for 2 or 3 more years at my 7K/year pace.

Is the blue drain plug on the radiator sufficient to get most of the fluid out or do I also need to remove a hose from the water pump? If the latter, anyone have a good picture/video of that?

Finally, just curious... what is the indication that the water pump has failed, other than the obvious engine temp rising rapidly. Is there a sensor on the dash that will indicate water pump failure so I'll have a few seconds warning before things start getting damaged?