NOTE: New brake pads may only be fitted if the brake disc thickness is greater than the minimum brake disc thickness (MIN TH).
Test specification <!-- [sect] --> 29 Limit value for brake disc thickness:
This limit dimensions is also applicable to perforated brake discs which are fitted on BMW AG vehicles as optional accessories!
OVERVIEW OF BRAKES
BMW X3 Service & Repair Manual > Body repair instructions: Safety instructions for handling magnets
Precautionary measures are necessary when handling magnets in order to exclude any potential danger.
If the distance between the magnets falls below the minimum distance, the magnets will be abruptly attracted to
each other. The brittle magnets will then collide with each other at high speed.
...