E70 EDC Warning, please help!

[bdcanetti]

I took my 2007 4.8 E70 X5 to my buddies shop to have the codes read after I got the "Electronic Dampening Control" or EDC failure messgae on my main screen.

It read that all 4 "satellites" or sensors were inoperative. Which is leading me to believe that it's not ALL FOUR sensors but instead the control module. Anyone have any insight or where I can find this module in the car? Or how much or how difficult to replace?

No Warranty so I'm a DIY'er.

The ride is horribly rough with the system inoperative. The ride height looks normal and level so I think its a control module issue or maybe a relay?

Any help would be very appreciated.