New B engine mechanical water pump

Here are pictures of the new B engines with a old style mechanical water pump,,,,as you can see some white dried up coolant leaking from the water pump. here are some more pictures of this fine new design water pump,,,,I don’t know why we went back to the old style water pump and go away from the newer style electric water pump.this new design gets better with a vacuum control flap,,,,this flap opens and closes off water going to and from the water pump,,,,we are seeing these water pump failing early this car had 15k miles.

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3 Responses to New B engine mechanical water pump

  1. randy says:

    worked in the lab almost every time, saved bmw 5 bucks per unit…. engineering said we can due better, bean pushers said,” good enough put it in, we will warranty it for 3 yrs and still be ahead, screw them after that”,leave that to marketing to keep them buying our cars…


  2. JC says:

    I suspect BMW expects this water pump to last longer than the expensive electric one used on the N55. I still see plastic impellers. Welcome back to 1999 !!!!!


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