Labelling of electronic wheel modules SP303 RDC-01 and RDC-02

1. Transmission frequency of electronic wheel module
2. Large Torx socket screw
3. BMW part number
4. Tightening torque of Torx screw and union nut
5. Width across flats of union nut
6. Serial number of electronic wheel module
7. Production date of electronic wheel module

Fig 1: Identifying Labels On Gen3 Electronic Wheel Module (SP303 RDC-01 And RDC-02)

Courtesy of BMW OF NORTH AMERICA, INC.