The other day I began getting a "clunking" sound from the front left of the car when going over small bumps and such. I looked at the X and noticed it sits lower in the front left as well. I checked and noticed the airbag on that wheel is soft and squishy while the one on the right is firm. Any ideas on whether or not this is a bad shock or airbag or what? I have an appointment with the Stealer on Tuesday to check it out. Just wanted some opinions before I head in there on what it might be after reading some issues some people have had with similar things. It's still under the CPO warranty and it seems like people on here have had varying degrees of success with getting similar repairs done under the warranty with some Stealers covering it, some covering part, and some covering none. Thoughts? Thanks in advance!!

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2005 X5 4.8iS