Take the approach there are no coincidences which means exhaust all efforts to troubleshoot the links and the sensors first before spending any time on the pump or a leak.

So I am clear, you have checked the rear sensors and the arm is positioned as it was when the light was out. And, you have checked to be sure the links are still connected on both ends. And, you have checked to make sure the sensor housing is solidly in place.

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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior
Dallas