The original spring pad on my Limited is A210 325 01 84 on the rear, which is 5mm. The coil diameter of the springs on the rear and the front are different. The springs are smaller in overall diameter and shorter in the rear than the front. Part numbers with 321 are for the front and 325 are for the rear. The difference in thickness of the pads are indicated by the 01=5mm, 02 =9mm, 03 =13mm, 04 =17mm. To raise the rear of the car you will need a thicker pad. Getting new springs is a good idea.
Click on the link for info on the installation of front camber bolts: eccentric bolts