Water pump won't shut off!

Hopskins · 10-21-2017, 12:15 PM

So here's my story, I put a new water pump and thermostat in yesterday. I went to perform the bleeding procedure and in the middle of the cycle the car battery died.... (I know, I'm a idiot and forgot about a battery tender). Now with a battery tender the water pump won't shut off, oil level indicator reads inactive, and I'm getting codes of alternator missing, intelligent battery sensor missing, electric coolant pump missing.

roadkillrob · 10-21-2017, 04:44 PM

Put a real battery charger on it, car goes crazy when battery is low.

Your other choice is disconnect the negative and put the battery tender on it for 2 or 3 days as it will take that long or longer.

TemjinX2 · 10-21-2017, 07:24 PM

disconnect the battery and take it to autozone get a fully charged and get real battery charger.

same thing happened to me when the battery charge i had didn't work. A fully charge battery should get rid of the codes

tylerboland01 · 10-21-2017, 08:24 PM

Quote:

Originally Posted by TemjinX2

disconnect the battery and take it to autozone get a fully charged and get real battery charger.

same thing happened to me when the battery charge i had didn't work. A fully charge battery should get rid of the codes

Have them trickle charge it over night. The quick "1 hour" charge cooks batteries. Or better yet buy a charger, their only $50.

TemjinX2 · 10-21-2017, 08:34 PM

Quote:

Originally Posted by tylerboland01

Have them trickle charge it over night. The quick "1 hour" charge cooks batteries. Or better yet buy a charger, their only $50.

mine seems fine. My cars a daily driver so i couldn't wait for one to be shipped to me.

But your correct, if you can wait, the trickle charger would be easier on the battery.

Hopskins · 10-22-2017, 12:52 AM

I bought a new battery and I'm still getting a code for 2E7C - bsd data bus communications fault and the water pump is still running as soon as I open the drivers door. I guess I fried the new water pump....

subframe · 09-12-2019, 02:39 AM

Quote:

Originally Posted by Hopskins

I bought a new battery and I'm still getting a code for 2E7C - bsd data bus communications fault and the water pump is still running as soon as I open the drivers door. I guess I fried the new water pump....

Did you ever solve this problem? I have virtually the same situation. Thanks.

10-21-2017, 12:15 PM	#1
Hopskins Enlisted Member 1 Rep 34 Posts Drives: 2007 E90 335i Join Date: Dec 2016 Location: Cincinnati iTrader: (0)	Water pump won't shut off! So here's my story, I put a new water pump and thermostat in yesterday. I went to perform the bleeding procedure and in the middle of the cycle the car battery died.... (I know, I'm a idiot and forgot about a battery tender). Now with a battery tender the water pump won't shut off, oil level indicator reads inactive, and I'm getting codes of alternator missing, intelligent battery sensor missing, electric coolant pump missing.
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10-21-2017, 04:44 PM	#2
roadkillrob Major General 862 Rep 5,448 Posts Drives: 08 335i,22 X3M, 2012 C63 Black Join Date: Jul 2007 Location: Boston iTrader: (15)	Put a real battery charger on it, car goes crazy when battery is low. Your other choice is disconnect the negative and put the battery tender on it for 2 or 3 days as it will take that long or longer. __________________ 2022 X3M Brooklyn Grey 2008 E93 335i FBO 2012 Mercedes C63 Black Series Alanite Grey
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10-21-2017, 07:24 PM	#3
TemjinX2 Major 521 Rep 1,485 Posts Drives: 2008 335xi e92 Join Date: Dec 2009 Location: Socal OC iTrader: (0)	disconnect the battery and take it to autozone get a fully charged and get real battery charger. same thing happened to me when the battery charge i had didn't work. A fully charge battery should get rid of the codes
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10-22-2017, 12:52 AM	#6
Hopskins Enlisted Member 1 Rep 34 Posts Drives: 2007 E90 335i Join Date: Dec 2016 Location: Cincinnati iTrader: (0)	I bought a new battery and I'm still getting a code for 2E7C - bsd data bus communications fault and the water pump is still running as soon as I open the drivers door. I guess I fried the new water pump....
	Appreciate 0 Quote