Brake Rotor/Disc
WM 4600TW Technical data/Brake wear limit - 911 Carrera as of MY 2009
Test values/wear limits - C2/C4 as of MY 2009
Minimum brake disc thickness is not retained due to wear (material erosion due to friction).
Test values/wear limits for C2/C2S and C4/C4S - PCCB brakes (option)
Minimum brake disc thickness is not retained due to wear (material erosion due to friction).