I recently ordered a set of Eibach Sportlines for my 2009 A3 2.0 TDI Sportback under the assumption that E20-15-007-02-22 was the correct part number. Typing my reg into amazon confirmed these were the correct springs for the car. I have just checked now on the Eibach Shop site however, and according to that, the correct springs are E20-15-007-04-22. These come up as non compatible on Amazon so I'm not sure if I have the correct springs or not. Can anyone offer any clarity?