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      02-13-2013, 10:28 PM   #9
PA66400
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Drives: 2008 335i Sedan
Join Date: Oct 2011
Location: Calgary, AB

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Quote:
Originally Posted by asianstutter View Post
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.
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