[PA66400]

Some have suggested on the E90 forum that the highest rate of water pump failure is in hot climates, becasue those temps are hostile to the pump electronics.

How many Canaidan E90 owners have replaced pumps and at what mileage? We can do a non-scientific survery here. How many high mileage E90 Canuck cars are on the original pump?

My pump died at 106,000 km after 5 Calgary winters. And, it died in the middle of one of those winters.

Hardly a hot climate here, hardly high mileage (it was great to have the overheat indicator come on at 100 km/hr and the car shut down on the highway without warning).

[Pierce330]

What kind of E90 do you have?

[JeeZues]

2007 E90 328i MT @~90K

[Pierce330]

I'm at 107km...fingers crossed, still original...I think that it's the luck of the draw

[e9012345]

My N52 waterpump copped out at 120,000KM - replaced that and the t-stat for under $1000 all in.

No big deal.

[Volasko]

Mine died at 140,000 kms, a few months back (december 2012). 06 E90 330i. DIY'd the swap.

[asianstutter]

I bought my 06 330xi used at 107000km. How can you find out if the water pump has been changed? now i'm at 117,000

[maf330xi]

Failed at approx 100,000 kms going 120-130km/h on the highway. $1300, taxes, labour and parts.

Edit: Automatic Transmission

[PA66400]

Originally Posted by asianstutter

I bought my 06 330xi used at 107000km. How can you find out if the water pump has been changed? now i'm at 117,000

The part number will tell you. The original (short-lived) pumps were made by Siemens, BMW part number was 1151756365. The better, later pump is made by Continental, PN 11517588885. BMW uses the later pump for all E90 N55 engines. It has fewer reported failures.

There is a later version pump (1151763242), for both N54 and N55, introduced 10 months ago, but I have no details on whether it is more robust than 11517588885.

The F30 has a completely different electirc coolant pump for the N55.

I think that the E90 328i can also use 11517588885, but orginally came with a lower capacity pump - do not have that PN.

[Volasko]

Originally Posted by asianstutter

I bought my 06 330xi used at 107000km. How can you find out if the water pump has been changed? now i'm at 117,000

Check to see if the T-stat is plastic or aluminum. It is common to swap the t-stat when you do the pump and the updated design is plastic vs the originals aluminum. If you have an 06 and your t-stat is plastic someone must have swapped it already. See this thread for more detail:
http://www.e90post.com/forums/showthread.php?t=347412

the 9th pic is the t-stat shown in the original aluminum material. The 20th pic shows the updated plastic design.

[PA66400]

Originally Posted by Volasko

Check to see if the T-stat is plastic or aluminum. It is common to swap the t-stat when you do the pump and the updated design is plastic vs the originals aluminum. If you have an 06 and your t-stat is plastic someone must have swapped it already. See this thread for more detail:
http://www.e90post.com/forums/showthread.php?t=347412

the 9th pic is the t-stat shown in the original aluminum material. The 20th pic shows the updated plastic design.

BMW Canada tells dealers not to replace the t-stat and pump together (unlike BMW USA). The t-stat is replaced only if it has failed too - usually if the car repetitively overheats and the t-stat melts its electronics. You could coneivably have an old t-stat and a new pump, if the pump alone failed while the car was in warranty, or in CPO warranty.

[Cyclops]

06 330i at 150k on original. But I have a spare on hand once it goes.

[PA66400]

Originally Posted by Cyclops

06 330i at 150k on original. But I have a spare on hand once it goes.

You're on borrowed time, my friend.

[dassub]

120,000km still on original water pump.

[ah gon]

looks like MT transmission have better life for water pump.

[shipill]

replaced water pump @ 70k my car had no warranty , bmw paid 70% of the invoice.

[ah gon]

Originally Posted by shipill

replaced water pump @ 70k my car had no warranty , bmw paid 70% of the invoice.

Y BMW cover your cost?

[Saintor]

On realoem, my 323i calls for 11517586925 from 'Pierburg'. cheap at amazon
http://www.amazon.com/Pierburg-Engin.../dp/B007PFZLZW

http://www.kspg.com/

I didn't know this company.

[KCX_335xi]

127K on original, 08 335xi e90.............but I have a spare set and will replace it shortly

[Dalco450]

E90 328i 2007 with 127 000km on the original pump.

[dassub]

Originally Posted by ah gon

looks like MT transmission have better life for water pump.

Good to hear!

[asianstutter]

Originally Posted by ah gon

looks like MT transmission have better life for water pump.

I wonder if this is true