[Falafel Combo]

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What is the best way to tell whether or not my car had it's (faulty) water pump replaced?


Do the (updated) pumps look the same as the old ones, or different? Certain serial numbers affected?


Also, do the newer water pumps have that same fault, or has it been corrected in the revised design?


Thanks fellas.

[Falafel Combo]

ttt

[smass]

I checked mine last year to determine it was original. I think mine was metal and the new ones are black plastic. There is a DIY on one of the forums that show pics of new and old parts side by side. Once you see the pics it is pretty obvious.

[Express]

is the pump even updated? ive really been counting on the replaced pump to fair.

has anyones 2nd water pump ever failed??

[Saintor]

If I had a 2006 325/330 or 2007 335 with the original, I would definitely change it as a prevention. Less sure about a 2007+ N52N; I haven't heard of any case involving a 328i so far.

In the mechanical maintenance sub-forum, eninty reports that the WP gave some BMW FC codes a long time before failing.

[hugus311]

i think pump still has metal casing but thermostat went from a metal to plastic casing

[ENINTY]

I just changed mine (DIY). The two versions of the pump on the outside look the same. The best way to tell is to just look at the mounting bolts. If the pump was replaced and new bolts used (as the procedure calls for) the new bolts WILL NOT be blue-headed (the bolts from the original factory build are blue-headed - i.e. one-time use only). The new bolts that come with the bolt kit are similar to the original bolts from the factory but do not have the blue head that indicates they are one-time use only. I guess BMW realized the wather pump mounting bolts aren't all that critical and don't really need to be replaced when a new pump is installed. Also check the casing and see how pitted the aluminum is compared to other aluminum parts. If the pump was replaced recently it will look newer than the other components.

Lastly, look for the wire harness that plugs into the pump. About 2 inches from the plug there should be a wire loom securing clip where the wire loom is cliped into. The clip is stainless steel and clips onto the pump casing to secure the wire harness from moving around. I'd bet a lot of mechanics will forget this little detail and do not transfer the holding clip from the old pump to the new pump and the wireharness will be hanging free.

If the thermostat was replaced it will be dark plastic. The original t-stats were aluminum.

[smass]

I stand corrected. Only the new style thermostat is plastic. The pumps look the same. New vs. old pics. http://www.e90post.com/forums/showthread.php?t=347412

[LocDawgg]

My car is still under CPO Warranty, should the dealership replace this for free? I have a 06 325i.

[pruettfan]

Originally Posted by LocDawgg

My car is still under CPO Warranty, should the dealership replace this for free? I have a 06 325i.

If you are still under CPO I am pretty sure that the water pump will be covered. A call to the dealer will answer the question for sure.

[NaTuReB0Y]

got stranded twice.....

got mine replaced......new one looks like cheap black plastic

my thermostat was replaced too at the same time.........

[Jado43]

At cold start the car seems to be slipping but then it goes normally as it worms up Also the engine turned off two times while driving And the water pump make sound when the car is off like (beeeep) any solution to know if it affect on the car electricity ? Help pls

[Zajac1]

What water pump we have to use on e9x platform ? Do we have few options ?? Pre-Lci had different than LCI pump or e90 than e91 ??

[Jado43]

Any help guys on my post pls ?

[Zajac1]

Originally Posted by Zajac1

What water pump we have to use on e9x platform ? Do we have few options ?? Pre-Lci had different than LCI pump or e90 than e91 ??

bump

[Centmaker]

I just bought a water pump two days ago and installed it. It was brand new and metal. All N52 engines use the same water pump doesn't matter if it's LCI or pre-LCI, doesn't even have to be an e90. You can literally take the water pump off any x3, x5, z4, 128i, and it will work for your car as long as it's an N52. N54s have more powerful water pumps that won't work on N52s at least I don't think, but same thing there, all the same water pump whether it's a 535i, 135i, or 335i. I think N52 is 200 watts and N54 is 400 watts someone correct me if I'm wrong about the wattage.

[Jado43]

At cold start the car seems to be slipping but then it goes normally as it worms up Also the engine turned off two times while driving And the water pump make sound when the car is off like (beeeep) any solution to know if it affect on the car electricity ? Help pls

[Eddien123]

If it's got over 80k miles and still runs... It's been replaced lol.

[hassmaschine]

Mine has 124k and is original.

[Zajac1]

https://www.ecstuning.com/b-genuine-...p/11517586925/

That's the one all of e9x models are using ?

[BMWster]

I'm at 141000 and still on the original water pump. I have a 2007 328xi.

[tlow98]

Originally Posted by Zajac1

https://www.ecstuning.com/b-genuine-...p/11517586925/

That's the one all of e9x models are using ?

Looks like that only fits the n52.

Check out Oebimmerparts for much better pricing from the exact same manufacturer.

ECS is great when they have stuff in stock and you can't get it elsewhere, but as far as price - they're pretty high.

Oh, 78,000 - original.