10..Brake System
Downtown 350i
Disc Brake
Inspection
Measure the thickness of the brake rotor with a Vernire caliper or micrometer.
ITEM
STANDARD
3.8 - 4.2 mm
Front
(0.15 - 0.165 in)
Brake disc thickness
5.0 mm
Rear
(0.2 in)
Check if the brake rotor runout is within service limit.
Measure the runout of the brake disc with a dial gauge. If the reading is out of
specification remove the disc from the wheel and recheck.
Item
Standard (mm)
Rear brake disk runout
max 0.4
8-37