Replacing Rear Air Spring - Suspension Component X5 e70

[bmrboi2]

Originally Posted by JCRoper

On my recently acquired '08 4.8i, the air springs are behaving oddly. The car normally parks overnight in our gently sloped driveway (nose up). One night about a month ago I put it nose down in the driveway to load it up the next morning, and the driver's side spring only was deflated. Then last week I parked it out front on the level street overnight, and both rear springs deflated. The next night in the driveway they stayed inflated. The following day in the street they deflated. It was parked level all day today, and they stayed inflated.

I don't want to just drop $400 or so on new springs if it doesn't need them, and as long they are staying inflated, I don't think I'm putting undue stress on the compressor.

Are these classic leaking spring symptoms, or something else?

Thanks,
Joel

I am having a similar issue except it is the passenger side primarily. Signs are pointing to looking at the distribution block on the drivers side near the rear drivers side wheel. Something about o rings. I haven't torn into it yet but while the truck is idling I can hear the faint hiss of air on occasion.

[daytonatrbo]

Originally Posted by bmrboi2

I am having a similar issue except it is the passenger side primarily. Signs are pointing to looking at the distribution block on the drivers side near the rear drivers side wheel. Something about o rings. I haven't torn into it yet but while the truck is idling I can hear the faint hiss of air on occasion.

Mine behaves differently depending on where I park it, but I think that's because wherever the bag is cracked sees more or less strain depending on its position.