Exactly what Ben916 just said. I pulled my new recalled DRC from Audi with about 25 miles on it and got rid of it. Threw the springs away and another list member paid for shipping on the struts/shocks to himself. There is no electrical but as mentioned there are a lot of brake line piping going throught the Resevoirs (Central valves)(x2) connectiong the struts/shocks diagonally. You don't want the junk. It has been nothing but a problem from new and the newer RS4's (2007/2008) are having problems with theirs already as well as the newer C6 RS6's in Europe.