C2 Turbo

Need to get the wheels balanced on my E55 and realized the rotors on the front have an edg/lip to them (drive is fine though), is it time to buy the new one's or would the brake sensor tell me when? Also where do I source the brakes, any recommendations on the make and the shop?
Thanks

bbirdwell

Any good Mercedes supplier can provide you the rotors and pads. I spent $610 plus shipping for all four rotors and Centrex pads. Front rotors were pricey at $224 each and left and right front rotors are unique to their sides.