Soft coding 100%. Yes we have small electronic board in steering wheel to pack all buttons into one wire, but it only sends 'scan codes' to the wire. Actual interpretation of button meaning and decision of what control messages will be injected into infotainment CAN bus is prerogative of MFSW ECU. You can basically map buttons with different CAN bus signals in the MFSW ECU.
There are two types of ECU: '616' (non-Tiptronic) and '618' (with Tiptronic) .
The codes are:
For the '616' controller, soft code = 0100X
For the '618' controller, soft code = 0101X
Where 'X' is:
1 for Telephone only,
2 for Radio/Nav only,
5 for Radio/Nav, Telephone and Voice Recognition
This setup works perfectly with RNS-E too, including Telephone and Voice Recognition.
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I'd rather drive on left
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