Firstly- THANKS!

You need to let us know how many miles, manual/auto etc...
115K - STEPTRONIC TRANS

What is your unit? your transmission?

What light was coming on?-Suspension INACTIVE

Details please.
i still hear the compressor from time to time. The main problem is on a "quick" take off. I know i'm not getting something from the rearend. when i shift through gears using the "steptronic" or auto, i don't feel any slipping at all. I dont think its the tranny. It feels like something else.

thx again