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      08-10-2013, 03:45 PM   #60
Reapur
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Drives: 2009 135i
Join Date: May 2013
Location: Toronto

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Quote:
Originally Posted by kenmasters View Post
Sorry for reviving this thread again. I'm having the same 2E84 comm error. No overheating yet or yellow/red indicators. Brought it to a indy shop and they say the pump is working, no fuses blown in the DME, but when the car is turned off the water pump continuously runs for another 2mins or so, which is not normal. It is possible that the stop signal to the pump is blocked. They recommend replacing the pump.


QUESTION: Can someone elaborate in more detail or include photos of how to trouble shoot the power distribution block on top of the battery ?? I don't mind spending $60 to replace it, but would like to know if there was a way to simply test it to be certain.

thanks,
K
The water pump running after the car is shut down is normal.

It's one of the reasons bmw used an electric pump. It runs to circulate coolant through the turbos to prevent coking. Our turbos have oil and water cooling, this process does away with needing a turbo timer and having the engine run after a hard drive.
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