Does my '01 3.0 non-sport have rear self-leveling air suspension?

[khelms_98]

I have been looking around my new-to-me '01 3.0 and I can't tell if I have rear self-leveling air suspension or not. I looked in the manual and tried to compare my rear suspension to the pictures in the manual and I couldn't really tell what was what. I see springs but I also see the bulb under the spare tire, too (I saw someone post that if I have the black bulb under the spare then I have rear air suspension). Would ones with air suspension have springs too and do all X5s (air suspension or not) have the bulb under that spare?? Could I run my VIN someone and tell? Thanks for the help. K. Helms