Left E53 for a week and rear suspension was down on both sides. Would not work at all, no pump coming on, so checked fuses, not blown, went to my mechanic who has advanced diagnositcs and got them to both pump up again, held for three weeks, then right rear went down and will not pump up. But pass side is OK, so not the same problem as last time as I see it.

I pulled air line on driver side, and no air is being pumped to that side, but again, pass side is up and ok. So perhaps bags are starting to leak, or something is leaking for it took three weeks for driver side to collapse. So all I know at this point is no air is reaching driver airbag to test for leaks.

Could bad sensor cause this non air issue on driver side? I have not had time to sway sensors to isolate, but was curious before I order new one, so anyone have this knowledge on sensor failure symptoms.

Thanks,