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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > Water Pump Upgrade



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      07-12-2012, 06:25 PM   #1
Brad from the OC
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Water Pump Upgrade

I heard that BMW upgraded their electric water pumps that were originally installed in the 2006 model year. Does anyone know if this is a fact?

Do the E90s produced after 2006 have a history of early water pump failures?

If I purchased a new water pump is there a way I can identify if the pump is indeed an upgraded pump?

If I purchased a new water pump from one of the many online BMW parts suppliers, will the pump be an upgraded pump or is there a chance that I could get an older model pump that was left from their stock of original pumps?

Are all water pumps sold by the online parts suppliers OEM or are there aftermarket manufacturers?

Is there anyone who has had a second water pump failure? If so what was the mileage on the second water pump?
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      07-12-2012, 06:38 PM   #2
NGuyadeen
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Number 1 Rule of thumb if you're not a modder or a upgrader go with OEM

Call the dealer tell them your VIN (Vehicle Identification Number) They will let you know whats going on ask them if you can come in and let them replace it for you. Most of the time this is hassles and free of charge
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      07-12-2012, 08:25 PM   #3
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Quote:
Originally Posted by NGuyadeen View Post
Number 1 Rule of thumb if you're not a modder or a upgrader go with OEM

Call the dealer tell them your VIN (Vehicle Identification Number) They will let you know whats going on ask them if you can come in and let them replace it for you. Most of the time this is hassles and free of charge
I'm not looking for a non OEM water pump. I'm trying to determine if BMW corrected the deficiency that is causing early pump failures and is offering a new pump to replace their older design. I'm also trying to avoid going to a BMW dealer as an Indy shop should be able to do a pump and thermostat replacement at a lower cost. What I'm looking for is finding a BMW replacement pump that has the new design improvement and not end up getting one of the older model pumps. If I took my car to a BMW dealer, what would keep them from just installing an older model pump that was sitting around on their shelf and end up with the same problem that I have now?
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      07-12-2012, 10:23 PM   #4
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Just go to realoem.com and see if thep/n changed
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      07-13-2012, 01:09 AM   #5
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From what I checked on realoem, BMW didnt update the pump . It is shared across 5 series too. I think the e46 uses the same pump too
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      07-13-2012, 01:36 AM   #6
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Quote:
Originally Posted by nukezero View Post
From what I checked on realoem, BMW didnt update the pump . It is shared across 5 series too. I think the e46 uses the same pump too
e46 had electric water pump?
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      07-13-2012, 02:08 AM   #7
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I checked NA models and found these part numbers:
#11517546994 325i/330i 2004-2007;
#11517563183 325i/330i 2004-2007; 328i 2006-2009
#11517586925 325i/330i 2004-2007; 328i 2006-2012
So, sounds like there's 3 water pump models. Not sure if it's due to failures and if they addressed the issue.
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      07-13-2012, 02:10 AM   #8
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saw this on esc tuning a wasserpumpe?

Don't settle for a new water pump for your N52; demand a "wasserpumpe" from Germany, by Pierburg.

The N52 coolant pump is not belt-driven. Electrically operated, it allows faster engine warm ups and saves horsepower. Problem is, when it quits, your engine overheats--right now.

Prevent overheating. If your N52 water pump is making warning sounds, head off trouble. Install a premium Pierburg "wasserpumpe" and avoid the inconvenience and substantial expense of an overheated engine.
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      07-13-2012, 07:51 AM   #9
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Quote:
Originally Posted by nukezero View Post
I think the e46 uses the same pump too
Negative

the E46 Uses mechanical water pump.
Our E90 water pump still uses the same part and there have been problems reported with 07, 08, 09 models
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      07-13-2012, 10:29 AM   #10
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Quote:
Originally Posted by bumere90 View Post
Negative

the E46 Uses mechanical water pump.
Our E90 water pump still uses the same part and there have been problems reported with 07, 08, 09 models
It appears that you can purchase an E90 replacement water pump using 3 different part numbers. If BMW has corrected their earlier designs, I wonder if some of the 07, 08 and 09 models might have had an older replacement pump installed? Maybe if BMW offered a re engineered pump they were not available until after 09? Or if BMW hasn't re engineered their water pump, the 2010 and later models don't have the mileage yet for a pump failure? In today's business world, I would suspect that older pump designs would stay on the shelf until they are sold out. Unless BMW took the old pumps back for credit, why would a supplier not try and sell their old inventory?
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      07-13-2012, 11:46 AM   #11
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after doing some research
it seems that the first 2 part numbers were discontinued
11517586925 is a new and upgraded water pump
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      07-13-2012, 01:40 PM   #12
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Quote:
Originally Posted by bumere90 View Post
after doing some research
it seems that the first 2 part numbers were discontinued
11517586925 is a new and upgraded water pump
I searched for the first two part numbers and it appears many suppliers have discontinued selling those pumps. I also found some suppliers who are still selling remanufactured pumps using the first two part numbers, along with remanufactured pumps with the third number.

It looks like buyer beware, I think a lot of E90 owners might have bought and installed pumps with the first two part numbers if they had some of the earliest pump failures which might have occured before the upgraded pump was available. Also if you are not aware, some people might buy a remanufactured older model pump and will be just replacing their failed pump with one that has some of the original problems.
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      07-13-2012, 04:35 PM   #13
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Quote:
Originally Posted by Brad from the OC View Post
Also if you are not aware, some people might buy a remanufactured older model pump and will be just replacing their failed pump with one that has some of the original problems.
I thought re-manned were not an option?? I have found no one who offers a re-man....
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      07-13-2012, 05:34 PM   #14
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I thought re-manned were not an option?? I have found no one who offers a re-man....
http://parts.bmwofsouthatlanta.com/p...517546994.html
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      07-13-2012, 05:43 PM   #15
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Hey All. I had a waterpump and thermostat failure yesterday in my E92 2007 and my car only has 55,000 miles on it. Sounds like premature to me. $1,150 to fix it all. contacted BMW Canada and was basically told they didn't give a crap about my premature pump failure because my warranty is over. There was a service bulletin put out on the pump and thermostat but only to say when one breaks replace both. No recalls were done on these items. Looks like BMW is droping the ball on this one. I have also been told that now my valve cover gasket is leaking. I've replaced these myself before but never on a BMW am trying to decide weather I do it myself or not as it will cost me an other $460 to get it done. anyone know about these ?
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      07-13-2012, 06:10 PM   #16
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Thanks Brad. Very shocked though...you save a wopping $60 by getting a re-manned over a new unit. Considering the cost it sure is not much of a savings. Glad I ordered the new unit today. So who wants my still functioning(I think) water pump I am pulling out? HA!
Since they do re-mann these I think I will open my old unit up and play around with it...who knows...might make a nice spare.
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      07-13-2012, 10:07 PM   #17
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Water Pump failed on our 2006 325i in June 2011 with 66,000 miles on the clock.

Replaced under CPO Warranty w/ #11517586925 RMFD Water Pump
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      07-14-2012, 08:04 AM   #18
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Got a 2011 E93 335 coupe- am i in the clear?
Sounds like the water pump design was not changed so I guess we're all in for a potential issue
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      07-14-2012, 09:08 AM   #19
Brad from the OC
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It appears the water pump is now on it's third part number. I'm assuming that with the third model, the problem has been corrected. The question you need answered is when was the third model installed in the new vehicles? And as always with new designs, the proof that it has solved the problem is in actual usage. So the question should be has anyone experienced a water pump failure after having the third model installed? And if you have had a failure in the new model pump what was the cause of the failure?
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      07-14-2012, 11:17 AM   #20
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If anything happens (knock on wood) on my front, I'll certainly post Brad, along with the root cause.
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