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