Removing wheel electronics
Release Torx socket screw (1).
Remove wheel electronics (2).
Check filter surface (1) for pressure measurement for contamination.
NOTE:
Wipe filter surface with a clean cloth only. If filter surface is dirty, replace wheel electronics.
Release union nut with special tool 00 2 190; if necessary, grip valve body (1) at cylindrical section of ball head.
Remove valve body from rim.
Remove washer (1).