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      08-09-2018, 07:37 AM   #19
RobbiZ4
Call me "Dr. Bob"
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Drives: BMW Z4 E89 sDrive 30i
Join Date: Jan 2018
Location: Munich, Bavaria (Home of BMW)

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Quote:
Originally Posted by sgt3966 View Post
Thanks. Going to order 2. A couple of questions. How do you know if they are bad or going bad and how often do you think they need to be replaced?
You can't recognize their end of life. Just replace it regularly every 5 years.

The broken pump I've examined was driven by a 9 year old relay, that failed.

Last edited by RobbiZ4; 08-22-2021 at 01:33 AM..
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