Thread: 2E85 fault code
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      11-21-2018, 10:08 PM   #1
dano328xi
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Drives: 328xi '07 -- 650i x drive '12
Join Date: Nov 2018
Location: Marion, OH

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2E85 fault code

The 2E85 fault code stands for electrical coolant pump, communication. The problem I'm having is that the coolant temperature is too low. It's usually around 70C when it should be around 95C. I thought it was the thermostat, so I replaced that. It didn't help. I plugged in the INPA to see what it says, and the thermostat stays at 0%. The water pump stays at 76.1%. The screenshot shows the thermostat at 2%, but I only saw that for a couple minutes and back to 0%. I tried changing to 90%, but it goes back to 0% after 30 seconds or so.
I get an error when I try to change the water pump duty cycle. any suggestions? I'm happy to change the water pump, but I'd like to be sure before I spend that much money. thanks in advance
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