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      07-13-2010, 12:59 PM   #40
Roadstergal
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Drives: 2010 Z4 35i
Join Date: Feb 2009
Location: USA - East Coast

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Quote:
Originally Posted by tranquility View Post
So do you think if you kept your original pump and never let it go below 1/4 you'd be alright? Thx.
From what I have read, I do believe so. When I first took delivery of my car, it was fine for the longest time and I pretty much always kept the tank full. I remember one time letting it pretty much go down below 1/4 and it was pretty much soon after that I first starting hearing the humming sound.

Read TeagueAMX's post on the fuel pump. It makes sense. I just know that I am not taking any chances. That humming sound was so aggravating.
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E89 - 2010 Z4 35i (Orion Silver, Ivory White extended, anthracite trim)
E85 - 2006 Z4 3.0i (Monaco Blue, beige leather, Dark Poplar wood trim)
E85 - 2003 Z4 2.5 (Sterling Gray, black leather, Sycamore wood trim)
E36 - 1998 Z3 2.8 (Red, black leather, wood trim)
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