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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Mechanical Maintenance: Break-in / Oil & Fluids / Servicing / Warranty > And @ 149,300 miles ... WATER PUMP



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      07-24-2011, 03:32 PM   #45
ENINTY
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Originally Posted by JunkStory View Post
Thank you. You potentially saved many people's days with this info. Does the check engine light come on when the first 2E81 shows up? Or must we periodically check for this code using a BT scanner? Would an ordinary OBD II read this?
The code does not trigger the Service Engine Soon light. That's the problem; there is no warning available.

Last edited by ENINTY; 07-25-2011 at 05:13 AM.
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      07-25-2011, 04:44 AM   #46
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The code does not trigger the Service Engine Soon light. That's the problem; there is know warning available.
Shit. I feel I need to get myself a BT scanner.
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      07-25-2011, 10:03 AM   #47
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You haven't read the entire post...You've been warned, now go sit in the corner.
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      07-25-2011, 10:12 AM   #48
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codes 2E83, 2E84, and 2E85 are related to water pump faults for voltage or communication. Basically means replace the WP.
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      07-28-2011, 04:22 PM   #49
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water pump out at 149k..... Shit, thats not bad! Mine died at 80K
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      07-28-2011, 08:32 PM   #50
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Still waiting for the first 328i (N52N) with a failed water pump.
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      07-28-2011, 09:20 PM   #51
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Shit. I feel I need to get myself a BT scanner.
You should.
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      07-29-2011, 03:57 AM   #52
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You should.
Sorry for this noob question, but which BT scan tool do you use? There's many different (pricey) choices on the Bavarian Technic website, and then there's this cheap one from Burger Tuning (called a CT scan tool), but I'm not sure if it can accurately detect all fault codes:

http://burgertuning.com/CAN_reader_tool_for_BMW.html
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      07-29-2011, 04:59 AM   #53
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Sorry for this noob question, but which BT scan tool do you use? There's many different (pricey) choices on the Bavarian Technic website, and then there's this cheap one from Burger Tuning (called a CT scan tool), but I'm not sure if it can accurately detect all fault codes:

http://burgertuning.com/CAN_reader_tool_for_BMW.html
Can't speak to the one you referred to I have no experience with it. I use the Bavarian Techniques scan tool Professional version.
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      07-29-2011, 05:41 AM   #54
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I'm going to get the Bavarian Techniques as well (enthusiast)
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      07-29-2011, 10:55 AM   #55
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Anyone interested in a cable should read the coding section. You can buy a cable for $90 ($35 for '06 drivers) which will not only let you read and reset codes, it won't be limited by VIN, and you can also do some coding once you have it set up!

Might not be easier, but for 06 drivers, much much cheaper and definitely gives you more options.
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      07-30-2011, 08:18 PM   #56
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Still waiting for the first 328i (N52N) with a failed water pump.
Pretty much all the E90's use the same water pump so it is just a matter of time. I looked up the part number and it is used on a ton of BMW's.
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      07-30-2011, 08:21 PM   #57
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I am at 106,000 miles with my 330i on the original pump. Debating on when to change it. I have a Peake scanner so I may just keep an eye out for the codes and then change it if the codes pop up. I actually have almost 3,000 more miles of carmax extended warranty left so hopefully it fails sooner rather than later. Once it gets beyond the warranty period I will probably just change it out along with the hoses for piece of mind since I live here on the surface of the sun.
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      07-31-2011, 07:04 AM   #58
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Quote:
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This will eventually happen to all of us who plan to keep the car after warranty. Please write a DIY for this

Actually 149,300 miles is not bad. I've heard some fail at ~30k on these forums.
Posted the DIY yesterday.
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      07-31-2011, 10:11 AM   #59
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Ouch sorry to hear about this. Good luck with getting it worked out.
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      08-02-2011, 10:11 AM   #60
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was the pump design changed for the N51? have they been known to fail?
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      08-07-2011, 10:02 PM   #61
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I was doing some heavy runs yesterday and noticed after shutting the car off I can hear noise from the water pump cycling on shut off...seems like its nearing its end of life, I'm at 60k miles...were you guys getting noise from it after shut off before it went and did you replace the thermostat on it as well?
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      08-08-2011, 02:22 AM   #62
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The water pump is electric, it may run after you shut the car off in order to cool the block down, this isn't a sign of impending failure.

It can also run in cold weather when you shut down and use the 'rest' function.
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      08-09-2011, 09:06 AM   #63
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Quote:
Originally Posted by pruettfan View Post
I am at 106,000 miles with my 330i on the original pump. Debating on when to change it. I have a Peake scanner so I may just keep an eye out for the codes and then change it if the codes pop up. I actually have almost 3,000 more miles of carmax extended warranty left so hopefully it fails sooner rather than later. Once it gets beyond the warranty period I will probably just change it out along with the hoses for piece of mind since I live here on the surface of the sun.
Why even wait for it to fail? Would you just take a saturday and do the change, or wait till you get stranded in the middle of nowhere, pay for a tow, risk having engine damage, and still have to change the pump?

Do the thermostat and coolant change too while down there. Maybe even the radiator hoses if they look all worn out.
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      08-11-2011, 12:45 PM   #64
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are the instruction similar for the 335?n54 ?
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      08-13-2011, 10:45 PM   #65
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Does anyone know where in the world the diagnostic connector is located on a 2006 330i (E90)? Thanks for your help.
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      08-14-2011, 07:49 AM   #66
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It is a little snap-out door on the left kick panel next to the hood release lever. It says "OBD" on it.
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