Components and Installation Locations: Notes
The following control units act as the interface between the mobile phone and the vehicle:
- ULF-SBX-High Interface box (Only for USB/Audio Interface)
- Telematics Control Unit (TCU)
The preconditions under which TCU or TCU and interface box together are installed are listed below:
TCU INSTALLATION REFERENCE CHART
| Optional extra | Telephone control units installed |
|---|---|
| Option 639 "BMW Assist" | TCU |
| Option 639 "BMW Assist" + option 6FL "USB audio interface" | TCU ULF-SBX-H |
| Option 639 "BMW Assist" + option 6NF "Smartphone Integration" + option 6FL "USB audio interface" |
TCU, ULF-SBX-H base plate/cradle adapter |
NOTE:
Although both the ULF-SBX-H and the TCU may be fitted in a vehicle at the same time, the TCU always provides the telephone functions. The ULF-SBX High is only installed to provide the "USB audio interface".