Necessary preliminary work:
Release screws (1).
Detach actuator drive for air mix flap (2).
Unlock associated plug connection and disconnect.
Servomotors must be readdressed in the event of replacement! Addressing can only be carried out with the BMW diagnosis system.
Service functions:
BMW X3 Service & Repair Manual > Electronic components: Replacing a brake pad sensor (front)
IMPORTANT:
The brake pad wear sensor must be replaced once it has been removed (brake pad wear sensor
loses its retention capability in the brake pad).
If an already ground brake pad wear sensor has to be replaced although the minimum brake pad thickness has
not yet been reached, it is ...