I changed my fuel pump a while back with a Pierburg/Bosch pump only. The instructions showed the rubber isolators/mounts with arrow pointing the opposite way than the previous pump was. I didn't know if the previous pump was original and couldn't see how it could make much difference, so I installed as per instructions, and now can hear the fuel pump even with the radio playing quietly. Anyone else run into this??

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1988 325is (purchased new) sold
2004 X5 3.0 2005 X3 2.5
2008 X5 3.0 (new to me)