Mine was still going at 123k. I did have a shadow code (2E85) but that had been there for years. I decided to replace it out of caution and. Now have about 10k on the new one.
My water pump lasted 420,000km
My water pump went out at 155k, 2006 BMW 325i auto
I’m at 180k, holding strong
My 330i started throwing codes around 135k. Replaced it for peace of mind and it turned out to be the original. I’ve heard somewhere that the water pump used in the 2006 325 and 330i is a bit different and lasts longer
Original water pump, lasted to 167k!
My experience with the N52 was great honestly. I owned a 2007 328i from 2007-2019 and put over 120,000 miles on it. The only engine issues it had were the water pump failing at 90,000, and the oil filter housing gasket leaking.
Well made, but they ain't cheap. Here's the diagrams for the N54 setup: http://www.realoem.com/bmw/par...fg=35 The water pump itself is over $500.
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